Cavity with graphene hyperbolic medium: optimization of parameters and conditions for efficient THz lasing
Developing theory of THz laser we have employed graphene-multilayer metamaterials possessing hyperbolic properties. We numerically calculated the eigen waves of the cavity contains asymmetrical hyperbolic medium (AHM) based on graphene-semiconductor multilayer structure with optics axis tilted with respect to outer boundary. We have shown existence of THz wave emission in this cavity and estimated the intensity of THz radiation taking into account gain saturation. Now we made an effort to find optimal conditions for efficient THz lasing in such structure and estimate THz generation line width.
Kotel’nikov Institute of Radio-Engineering and Electronics of Russian Academy of Science, Saratov Branch
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