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首页> 美国政府科技报告 >High-Q Photonic-Crystal Cavities for Light Amplification and Lasing.
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High-Q Photonic-Crystal Cavities for Light Amplification and Lasing.

机译：用于光放大和激光的高Q光子晶体腔。

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We carried out detailed studies of Fabry-Perot resonances ( transmission band edge resonances) in periodic layered structures involving birefringent layers. We have shown that the presence of birefringent layers with misaligned in-plane anisotropy can dramatically enhance the performance of the photonic-crystal resonator. It allows us to reduce its size by an order of magnitude without compromising on its performance. The key characteristic of the enhanced slow-wave resonator is that the Bloch dispersion relation of the periodic structure displays a degenerate photonic band edge. Such a situation can be realized in specially arranged stacks of misaligned anisotropic layers. On the down side, the presence of birefringent layers results in the slow-wave resonance being coupled only with one elliptic polarization component of the incident wave, while the other polarization component is reflected back to space.

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