THz Photoconductive Antenna (PCA)
Application ID: 127921
This model uses the Semiconductor and RF modules to describe a photoconductive antenna (PCA).
A laser pulse is applied on the surface of undoped LT-GaAs to generate electron-hole-pairs, which move under the influence of an external E-field creating a transient electric current pulse. This pulse is then used as the source current density to simulate a subsequent THz pulse.
The main result of the simulation is the far-field spectrum and radiation pattern of the THz pulse.
Learn more in this related blog post: Modeling a THz Photoconductive Antenna with COMSOL Multiphysics®
![](/model/image/127921/big.png)
案例中展示的此类问题通常可通过以下产品建模:
您可能需要以下相关模块才能创建并运行这个模型,包括:
建模所需的 COMSOL® 产品组合取决于多种因素,包括边界条件、材料属性、物理场接口及零件库,等等。不同模块可能具有相同的特定功能,详情可以查阅技术规格表,推荐您通过免费的试用许可证来确定满足您的建模需求的正确产品组合。如有任何疑问,欢迎咨询 COMSOL 销售和技术支持团队,我们会为您提供满意的答复。