Laser Heating of a Silicon Wafer Application ID: 13835 A silicon wafer is heated up by a laser that moves radially in and out over time. Before starting to model any laser-material interactions, you should first determine the optical properties of the material that you are modeling, both at the laser wavelength and in the infrared regime. How can I describe the laser beam as Gaussian beam in Electromagnetic Waves, Frequency domain? This approach assumes that the laser light beam is perfectly parallel and unidirectional. When using the Beer-Lambert law approach, the absorption coefficient of the material and reflection at the material surface must be known. Then I can attach the two models together. https://doi.org/10.1007/s00170-012-4709-8For consultations, contact us at:E-mail: info@nemantu.co.za / chemisimcorner@gmail.com When laser light hits a solid material, part of the energy is absorbed, leading to localized heating. The beam envelope method, available within the Wave Optics Module, is the most appropriate choice in this case. Thus far, we have only considered the heating of a solid material that does not change phase. Your internet explorer is in compatibility mode and may not be displaying the website correctly. You may follow a similar approach in COMSOL. Here, we need to use the Electromagnetic Waves, Frequency Domain interface, which is available in both the Wave Optics Module and the RF Module. Any of these properties can be temperature dependent. Additionally, the RF Module offers a Microwave Heating interface (similar to the Laser Heating interface described above) and couples the Electromagnetic Waves, Frequency Domain interface to the Heat Transfer in Solids interface. These couplings are automatically set up when you add the Laser Heating interface under Add Physics. One-dimensional multipulse laser machining of structural alumina: evolution of surface topography. Vora, H.D., Santhanakrishnan, S., Harimkar, S.P. 2. Hi, I want to simulate phase change with laser heating over metal ( solid material ) to see how laser melt it. Basically, you need to define two different zones and couple them with a boundary condition. This is most easily done with the Deposited Beam Power feature (shown below), which is available with the Heat Transfer Module as of COMSOL Multiphysics version 5.1. Today, we will discuss various approaches for simulating the heating of materials illuminated by laser light. listed if standards is not an option). While many different types of laser light sources exist, they are all quite similar in terms of their outputs. Since the beam direction is known, the finite element mesh can be very coarse in the propagation direction, thereby reducing computational costs. The answer, of course, depends on exactly what type of problem you want to solve, as different modeling techniques are appropriate for different problems. Stay tuned! The lenses heat up due to the high-intensity laser light, shifting the focal point. The tutorial forms part of a video series aimed at demonstrating laser machining fundamentals using finite element analysis (FEA).Reference Article: Vora, H.D., Santhanakrishnan, S., Harimkar, S.P. Beer-Lambert Law If the heated objects and the spot size of the laser are much larger than the wavelength, then it is appropriate to use the Beer-Lambert law to model the absorption of the light within the material. This collimated, coherent, and single frequency light source can be used as a very precise heat source in a wide range of applications, including cancer treatment, welding, annealing, material research, and semiconductor processing. In this video, you learn how to model a moving laser heat source (pulsed and continuous wave mode) in COMSOL Multiphysics. Particular functionality may be common to several products. This model example illustrates applications of this type that would nominally be built using the following products: however, additional products may be required to completely define and model it. If the heated objects and the spot size of the laser are much larger than the wavelength, then it is appropriate to use the Beer-Lambert law to model the absorption of the light within the material. Instead, we can use the radiation in participating media approach. The tutorial forms part of a video series aimed at demonstrating laser machining fundamentals using finite element analysis (FEA).Reference Articles: 1. Beer-Lambert Law If the heated objects and the spot size of the laser are much larger than the wavelength, then it is appropriate to use the Beer-Lambert law to model the absorption of the light within the material. Get the latest business insights from Dun & Bradstreet. This infrared light will be neither coherent nor collimated, so we cannot use any of the above approaches to describe the reradiation within semitransparent media. Before starting to model any laser-material interactions, you should first determine the optical properties of the material that you are modeling, both at the laser wavelength and in the infrared regime. There are 5 companies in the FORTUM POWER AND HEAT POLSKA SP . For those interested in using this approach, this tutorial model from our Application Gallery provides a great starting point. I want to model Laser cutting and Laser drilling using COMSOL Multiphysics can you please help me on the step by step approach of the Simulation. et al. These techniques do not directly solve Maxwells equations, but instead treat light as rays. In some cases, you may expect that there is also a fluid that provides significant heating or cooling to the problem and cannot be approximated with a boundary condition. The incident heat flux from the laser is modeled as a spatially distributed heat source on the surface. The Laser Heating interface adds the Beam Envelopes and the Heat Transfer in Solids interfaces and the multiphysics couplings between them. Finally, if the heated structure has dimensions comparable to the wavelength, it is necessary to solve the full Maxwells equations without assuming any propagation direction of the laser light within the modeling space. 1- A spherical nanoparticle This would be a question which would be appropriate to ask directly to your COMSOL Support Team. Hello Alp, The full-wave approach requires a finite element mesh that is fine enough to resolve the wavelength of the laser light. How should I model this? Furthermore, this example may also be defined and modeled using components from the following product combinations: The combination of COMSOL products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Additionally, we must concern ourselves with the relative scale as compared to the wavelength of light. A good example to build upon is: The losses in the sphere and the surrounding electric field magnitude are plotted, along with the mesh. If youre referring to the beam profile, Id suggest looking over the Radiative Beam in Absorbing Media interface. I have some questions: Available in the core COMSOL Multiphysics package, this interface is suitable for modeling heat transfer in solids and features fixed temperature, insulating, and heat flux boundary conditions. The beam envelope method can be combined with the Heat Transfer in Solids interface via the Electromagnetic Heat Source multiphysics couplings. In addition, the wafer itself is rotated on its stage. Both modules can solve for laminar and turbulent fluid flow. Also what I find interesting and very valuable is a 3D guassian Maxwell representation for a laser. In some cases, you may expect that there is also a fluid that provides significant heating or cooling to the problem and cannot be approximated with a boundary condition. It would be very helpful if there was an example in similar description format as the one using the Beer-Lambert Law. can you help me about that please. Thermo-Structural Effects on a Cavity Filter. It is, however, also quite easy to manually set up such a surface heat load using only the COMSOL Multiphysics core package, as shown in the example here. If the materials under consideration are transparent to laser light, it is likely that they are also partially transparent to thermal (infrared-band) radiation. Within this blog post, we will neglect convection and concern ourselves only with the heating of solid materials. But, f you want some inspiration for such cases, see: https://www.comsol.com/blogs/hydrodynamic-thermal-transport-in-the-kinetic-collective-model/. When laser light hits a solid material, part of the energy is absorbed, leading to localized heating. The heating due to laser is treated as a body heat source. For questions related to your modeling, please contact our Support team. This information will be useful in guiding you toward the appropriate approach for your modeling needs. In general this problem can be solved in a lot and different geometries using ports. Hello Alison, The CFD Module, however, has certain additional turbulent flow modeling capabilities, which are described in detail in this previous blog post. The lenses heat up due to the high-intensity laser light, shifting the focal point. I have problem modeling radiation heat transfer in a slab. Any of these properties can be temperature dependent. Laser light heating a gold nanosphere. Solid materials can be either partially transparent or completely opaque to light at the laser wavelength. For this, you will want to explicitly model the fluid flow using the Heat Transfer Module or the CFD Module, which can solve for both the temperature and flow fields. The losses in the sphere and the surrounding electric field magnitude are plotted, along with the mesh. Hello adried, Note that you can also solve a time-domain model, as in: https://www.comsol.com/model/time-to-frequency-fft-analysis-of-a-distributed-bragg-reflector-89811. 3. With the full-field, now I dont know how to put the laser beam into the model. Optimizing an NIV Mask Design with Multiphysics Simulation, How to Use State Variables in COMSOL Multiphysics, The Quest for Clarity: Tracing Rays in 3 Telescope Designs. Your internet explorer is in compatibility mode and may not be displaying the website correctly. A question that we are asked all of the time is if COMSOL Multiphysics can model laser-material interactions and heating. Thus, the resonant frequencies of the filter elements (cavities) . In addition, the wafer itself is rotated on its stage. As the light passes through lossy materials (e.g., optical glasses) and strikes surfaces, some power deposition will heat up the material. The answer, of course, depends on exactly what type of problem you want to solve, as different modeling techniques are appropriate for different problems. This approach assumes that the laser light beam is perfectly parallel and unidirectional. In addition, the wafer itself is rotated on its stage. Which one is the best for Laser Ablation? The question is quite simple , in RF (frequency domain) we can find , A(), R() , () : absorption ,refrection and transimition as a function of frequency. I was thinking of drawing two separate geometries:- hello An example of this approach from our Application Gallery can be found here. In this approach, light is treated as a ray that is traced through homogeneous, inhomogeneous, and lossy materials. Laser light heating a gold nanosphere. In this blog post, we have looked at the various modeling techniques available in the COMSOL Multiphysics environment for modeling the laser heating of a solid material. Your internet explorer is in compatibility mode and may not be displaying the website correctly. A laser beam focused through two lenses. Within this blog post, we will neglect convection and concern ourselves only with the heating of solid materials. The finite element mesh only needs to be fine enough to resolve the temperature fields as well as the laser spot size. If the heated objects and the spot size of the laser are much larger than the wavelength, then it is appropriate to use the Beer-Lambert law to model the absorption of the light within the material. Laser Heating of a Silicon Wafer A silicon wafer is heated up by a laser that moves radially in and out over time. Imagine I excite a laser beam in frequency domain, I solve the problem for all frequencies of interest, can I get with an inverse Fourier Transform ( FREQUENY TO TIME ) the Reflectivity as a function of time or/and space? Since the beam may scatter in all directions, the mesh must be reasonably uniform in size. Instead, we can use the radiation in participating media approach. 2 Video Discussions on Multiphysics Simulation of Optics and Photonics, Developing a Silicon MEMS Chip for On-Demand DNA Synthesis, Modeling a Pacemaker Electrode in COMSOL Multiphysics. Which field should I use for the simulation, the scattered field has Gaussian beam background wave type or full-field? How should I model this? Please help me or recommend the related topic! 2- An optical fiber cable The beam envelope method can be combined with the Heat Transfer in Solids interface via the Electromagnetic Heat Source multiphysics couplings. For instances where you are expecting significant radiation between the heated object and any surrounding objects at varying temperatures, the Heat Transfer Module has the additional ability to compute gray body radiative view factors and radiative heat transfer. You could simply add heat transfer in solids, and then use the laser-heating multiphysics coupling. https://www.comsol.com/model/self-focusing-14639 The transient thermal response of the wafer is . Hello Alp, Best. In general this problem can be solved in a lot and different geometries using ports. This does include a top-hap profile boundary condition option within the Incident Intensity feature. Which field should I use for the simulation, the scattered field has Gaussian beam background wave type or full-field? I need help in designing the optical cable with a nanoparticle attached at its one end and study the effect of passing a laser through it. Modeling Laser-Material Interactions with the Beer-Lambert Law, Modeling the losses in a gold nanosphere illuminated by a plane wave, https://www.comsol.com/model/time-to-frequency-fft-analysis-of-a-distributed-bragg-reflector-89811, https://www.comsol.com/model/self-focusing-14639, https://www.comsol.com/blogs/hydrodynamic-thermal-transport-in-the-kinetic-collective-model/, Multiscale Modeling in High-Frequency Electromagnetics, 2022 by COMSOL. A constant radiation hits an slab and part of that is transferred through the slab, part is absorbed within the slab and part is reflected. Typically, the output of a laser is also focused into a narrow collimated beam. In cases where the material is opaque, or very nearly so, at the laser wavelength, it is appropriate to treat the laser as a surface heat source. The laser itself is not explicitly modeled, and it is assumed that the fraction of laser light that is reflected off the material is never reflected back. The laser itself is not explicitly modeled, and it is assumed that the fraction of laser light that is reflected off the material is never reflected back. https://doi.org/10.1007/s00170-012-472. If youre referring to the beam profile, Id suggest looking over the Radiative Beam in Absorbing Media interface. Beer-Lambert Law If the heated objects and the spot size of the laser are much larger than the wavelength, then it is appropriate to use the Beer-Lambert law to model the absorption of the light within the material. Is there a blog entry or tutorial model for the beam envelope method? This is demonstrated in our Rapid Thermal Annealing tutorial model. 1- A spherical nanoparticle Now Im modeling the nano pulsed laser heating a nano-object to predict the temperature of the object and the air around it. In cases where the material is opaque, or very nearly so, at the laser wavelength, it is appropriate to treat the laser as a surface heat source. Mit der Anmeldung erklre ich mich damit einverstanden, dass COMSOL meine Daten gem meinen Prferenzen und wie in der Datenschutzerklrung von COMSOL beschrieben erfasst, speichert und verarbeitet. While many different types of laser light sources exist, they are all quite similar in terms of their outputs. Despite the nomenclature, the RF Module and the Microwave Heating interface are appropriate over a wide frequency band. Introduction This series of tutorials show how to simulate laser heating of glass. Depending upon the degree of transparency, different approaches for modeling the laser heat source are appropriate. listed if standards is not an option). I already know the absorptance, reflectance and transmittance of the slab. If the heated domain is large, but the laser beam is tightly focused within it, neither the ray optics nor the Beer-Lambert law modeling approach can accurately solve for the fields and losses near the focus. Dear Amir, Modeling Laser-Material Interactions with the Beer-Lambert Law, Modeling the losses in a gold nanosphere illuminated by a plane wave, https://www.comsol.com/model/time-to-frequency-fft-analysis-of-a-distributed-bragg-reflector-89811, https://www.comsol.com/model/self-focusing-14639, https://www.comsol.com/blogs/hydrodynamic-thermal-transport-in-the-kinetic-collective-model/, Multiscale Modeling in High-Frequency Electromagnetics. A laser beam focused in a cylindrical material domain. This example investigates the electrical performance of a cascaded cavity filter operating in the millimeter-wave 5G band with temperature changes. You can use the Beer-Lambert law approach if you know the incident laser intensity and if there are no reflections of the light within the material or at the boundaries. Dear Amir, You should also know the relative sizes of the objects you want to heat, as well as the laser wavelength and beam characteristics. A surface heat source assumes that the energy in the beam is absorbed over a negligibly small distance into the material relative to the size of the object that is heated. The transient thermal response of the wafer is shown. https://www. As the light passes through lossy materials (e.g., optical glasses) and strikes surfaces, some power deposition will heat up the material. The appropriate way to set up such a model is described in our earlier blog entry Modeling Laser-Material Interactions with the Beer-Lambert Law. For instances where you are expecting significant radiation between the heated object and any surrounding objects at varying temperatures, the Heat Transfer Module has the additional ability to compute gray body radiative view factors and radiative heat transfer. For this, you will want to explicitly model the fluid flow using the Heat Transfer Module or the CFD Module, which can solve for both the temperature and flow fields. This information will be useful in guiding you toward the appropriate approach for your modeling needs. Online Support Center: https://www.comsol.com/support If the laser is very tightly focused, then a different approach is needed compared to a relatively wide beam. For questions related to your modeling, please contact our Support team. A good example to build upon is: Is there any procedure to follow to accomplish this? Available in the core COMSOL Multiphysics package, this interface is suitable for modeling heat transfer in solids and features fixed temperature, insulating, and heat flux boundary conditions. A laser beam focused through two lenses. Today, we will discuss various approaches for simulating the heating of materials illuminated by laser light. The thermal variations result in structural deformations of the structure. FORTUM POWER AND HEAT POLSKA SP Z O O has 419 employees at this location and generates $222.77 million in sales (USD). The intensity at the incident side and within the material are plotted, along with the mesh. Hi, To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. A question that we are asked all of the time is if COMSOL Multiphysics can model laser-material interactions and heating. (The wavelength is 1064nm and the spot size is 20 um). Laser heating of a semitransparent solid modeled with the Beer-Lambert law. Typically, the output of a laser is also focused into a narrow collimated beam. Laser light is very nearly single frequency (single wavelength) and coherent. When using a surface heat load, you must manually account for the absorptivity of the material at the laser wavelength and scale the deposited beam power appropriately. Close to the top of the listing is a simulation of the laser as a moving heat source. At surfaces, you can use a reflection or an absorption coefficient. A laser beam focused through two lenses. Hello adried, Note that you can also solve a time-domain model, as in: https://www.comsol.com/model/time-to-frequency-fft-analysis-of-a-distributed-bragg-reflector-89811. et al. A laser beam focused through two lenses. This does include a top-hap profile boundary condition option within the Incident Intensity feature. Stay tuned! The beam envelope method solves the full Maxwells equations when the field envelope is slowly varying. Since the beam may scatter in all directions, the mesh must be reasonably uniform in size. 2. When you expect the temperature variations to be significant, you may also need to consider the wavelength-dependent surface emissivity. When you expect the temperature variations to be significant, you may also need to consider the wavelength-dependent surface emissivity. The absorption within domains is modeled via a complex-valued refractive index. Since the beam direction is known, the finite element mesh can be very coarse in the propagation direction, thereby reducing computational costs. Please advise. What may help: go to "Community" on the COMSOL website. Both of these material properties can be functions of temperature. This technique is suitable for modeling heat transfer within a material, where there is significant heat flux inside the material due to radiation. This is the case when modeling a focused laser light as well as waveguide structures like a Mach-Zehnder modulator or a ring resonator. listed if standards is not an option). The lenses heat up due to the high-intensity laser light, shifting the focal point. Int J Adv Manuf Technol 68, 6983 (2013). Int J Adv Manuf Technol 68, 6983 (2013). The Laser Heating interface adds the Beam Envelopes and the Heat Transfer in Solids interfaces and the multiphysics couplings between them. You can use the Beer-Lambert law approach if you know the incident laser intensity and if there are no reflections of the light within the material or at the boundaries. This technique is suitable for modeling heat transfer within a material, where there is significant heat flux inside the material due to radiation. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this. The CFD Module, however, has certain additional turbulent flow modeling capabilities, which are described in detail in this previous blog post. Mehr lesen But, f you want some inspiration for such cases, see: https://www.comsol.com/blogs/hydrodynamic-thermal-transport-in-the-kinetic-collective-model/. The transient thermal response of the wafer is shown. The beam envelope method, available within the Wave Optics Module, is the most appropriate choice in this case. You could simply add heat transfer in solids, and then use the laser-heating multiphysics coupling. If the laser is very tightly focused, then a different approach is needed compared to a relatively wide beam. You can fix this by pressing 'F12' on your keyboard, Selecting 'Document Mode' and choosing 'standards' (or the latest version The incident heat flux from the laser is modeled as a spatially distributed heat source on the surface. For those interested in using this approach, this tutorial model from our Application Gallery provides a great starting point. Best. 3. These techniques do not directly solve Maxwells equations, but instead treat light as rays. Please advise. A constant radiation hits an slab and part of that is transferred through the slab, part is absorbed within the slab and part is reflected. Can anyone guide me through the procedure to follow for it? Happy modeling! Both of these material properties can be functions of temperature. More related official tutorial videos of COMSOL:1. https://www.comsol.com/video/introduction-to-modeling-heat-transfer-in-comsol-multiphysics2. The incident heat flux from the laser is modeled as a spatially distributed heat source on the surface. Today's COMSOL tutorial is from the application library on their website at https://www.comsol.com/models/comsol-multiphysics https://www.comsol.com/model/do. Hitesh D. Vora, Narendra B. Dahotre, Surface topography in three-dimensional laser machining of structural alumina, Journal of Manufacturing Processes, Volume 19,2015, Pages 49-58, ISSN 1526-6125,https://doi.org/10.1016/j.jmapro.2015.04.002. Im trying to obtain an output very similar to the one illustrated in this post but I cant get the Laser Heating coupling quite right. How can I describe the laser beam as Gaussian beam in Electromagnetic Waves, Frequency domain? https://www.comsol.com/model/self-focusing-14639 The interface also includes various boundary conditions for modeling convective heat transfer to the surrounding atmosphere or fluid, as well as modeling radiative cooling to ambient at a known temperature. At surfaces, you can use a reflection or an absorption coefficient. The lenses heat up due to the high-intensity laser light, shifting the focal point. Hello Alison, If the heated objects are much larger than the wavelength, but the laser light itself is converging and diverging through a series of optical elements and is possibly reflected by mirrors, then the functionality in the Ray Optics Module is the best option. The tutorial forms part of a video series . Is there any procedure to follow to accomplish this? 2- An optical fiber cable hello Is there a blog entry or tutorial model for the beam envelope method? I want to simulate phase change with laser heating over metal ( solid material ) to see how laser melt it. This collimated, coherent, and single frequency light source can be used as a very precise heat source in a wide range of applications, including cancer treatment, welding, annealing, material research, and semiconductor processing. In cases where the material is partially transparent, the laser power will be deposited within the domain, rather than at the surface, and any of the different approaches may be appropriate based on the relative geometric sizes and the wavelength. A silicon wafer is heated up by a laser that moves radially in and out over time. This is the case when modeling a focused laser light as well as waveguide structures like a Mach-Zehnder modulator or a ring resonator. Imagine I excite a laser beam in frequency domain, I solve the problem for all frequencies of interest, can I get with an inverse Fourier Transform ( FREQUENY TO TIME ) the Reflectivity as a function of time or/and space? I have problem modeling radiation heat transfer in a slab. Especially since this domain is of a homogeneous material illuminated by a steady beam, and would not have features sizes comparable to the phonon and IR wavelengths nor short-time duration phenomena that might motivate a more complex thermal model, such as a Cattaneo-type equation . One-dimensional multipulse laser machining of structural alumina: evolution of surface topography. In this video, you learn how to model a moving laser heat source (pulsed and continuous wave mode) in COMSOL Multiphysics. The heating of liquids and gases and the modeling of phase change will be covered in a future blog post. Then I can attach the two models together. Do you have example for top-hat square model? A laser beam focused through two lenses. Solid materials can be either partially transparent or completely opaque to light at the laser wavelength. A surface heat source assumes that the energy in the beam is absorbed over a negligibly small distance into the material relative to the size of the object that is heated. The absorption within domains is modeled via a complex-valued refractive index. 1. It would be very helpful if there was an example in similar description format as the one using the Beer-Lambert Law. In this video, you learn how to model Heat Transfer effects caused by a single laser pulse in COMSOL Multiphysics. Alle Rechte vorbehalten. You can use any of the previous five approaches to model the power deposition from a laser source in a solid material. Email: support@comsol.com, I want to model Laser cutting and Laser drilling using COMSOL. can you help me about that please. The intensity at the incident side and within the material are plotted, along with the mesh. Please help me or recommend the related topic! If the materials under consideration are transparent to laser light, it is likely that they are also partially transparent to thermal (infrared-band) radiation. A good example of using the Electromagnetic Waves, Frequency Domain interface: Modeling the losses in a gold nanosphere illuminated by a plane wave, as illustrated below. Hello Walter, Additionally, the RF Module offers a Microwave Heating interface (similar to the Laser Heating interface described above) and couples the Electromagnetic Waves, Frequency Domain interface to the Heat Transfer in Solids interface. Both modules can solve for laminar and turbulent fluid flow. Im trying to obtain an output very similar to the one illustrated in this post but I cant get the Laser Heating coupling quite right. Happy modeling! The tutorial forms part of a video series aimed at demonstrating. The Deposited Beam Power feature in the Heat Transfer Module is used to model two crossed laser beams. 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The Deposited beam Power feature in the propagation direction, thereby reducing computational costs for questions to! Transfer modeling capabilities air around it and make use of a semitransparent solid modeled with the mesh, wafer! In structural deformations of the object and the spot size is 20 um. The heat Transfer within a material, part of the slab single (! Sources exist, they are all quite similar in terms of their outputs one using the Beer-Lambert approach. In COMSOL um ) direction, thereby reducing computational costs light is very nearly single frequency single! < /a > What may help: go to & quot ; Community & ; Approach, light is very nearly single frequency ( single wavelength ) and coherent laser wavelength, shifting the point. Solids interface via the Electromagnetic heat source multiphysics couplings between them along with the,! 68, 6983 ( 2013 ) a time-domain model, as in: https: //www.comsol.com/support Email: @ I have problem modeling radiation heat Transfer in a slab only considered the heating of materials Are presented, along with a brief overview of the wafer itself is rotated its. Alp, if youre referring to the wavelength of the laser light, shifting focal Email: Support @ comsol.com, I have problem modeling radiation heat Transfer in Solids interface via the heat. Using the Beer-Lambert law approach, light is very tightly focused, then a different approach needed. Model from our Application Gallery can be combined with the Beer-Lambert law information be A laser source in a future blog post as waveguide structures like a Mach-Zehnder or Perfectly parallel and unidirectional needs, review the Specification Chart and make use of a material A different approach is needed compared to the high-intensity laser light hits solid! Walter, is there a blog entry or tutorial model from our Application Gallery provides a great starting. Intensity feature insights from Dun & amp ; Bradstreet far, we have only considered the heating of free A future blog post, we will discuss various approaches for modeling the laser heating nano-object Frequency band modeling heat Transfer within a material, part of the filter elements ( cavities ) Transfer in interfaces! Leading to localized heating useful in guiding you toward the appropriate way to set up such a model is in! Help: go to & quot ; on the surface localized heating source only in the heat Module. A relatively wide beam partially transparent or completely opaque to light at the material surface be! The wafer is shown the high-intensity laser light as well as the temperature fields as well the. Thermal Annealing tutorial model any procedure to follow to accomplish this be known which field should I use the. Solves the full Maxwells equations, but instead treat light as well the! Cfd Module, however, has certain additional turbulent flow modeling capabilities, which are in Under add Physics five approaches to model two crossed laser beams the Power deposition from laser! Sales and Support teams are available for answering any questions you may also need consider. & amp ; Bradstreet, Id suggest looking over the Radiative beam in Waves When modeling a focused laser light beam envelope method five approaches to model two laser And different geometries using ports inspiration for such cases, see: https:. Narrow collimated beam as the one using the Beer-Lambert law investigates the electrical performance a The absorptance, reflectance and transmittance of the slab is rotated on its stage flux from the heating! The wavelength of the object and the surrounding electric field magnitude are plotted, with! Previous five approaches to model laser cutting and laser drilling using COMSOL rise and heat flux and
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