论文标题
光热诱导的透明度
Photothermally Induced Transparency
论文作者
论文摘要
诱导的透明度在光学中是常见但显着的影响。当使用强驾驶场来使原本不透明的材料透明时，就会发生这种情况。该效果称为原子培养基中的电磁诱导透明度，以及由耦合的光学和机械谐振器组成的系统中的光机电诱导的透明度。在这项工作中，我们介绍了光热感应透明度（PTIT）的概念。当光谐振器由于谐振器或其镜子的光加热而表现出非线性行为时，就会发生这种情况。类似于已建立的透明度机制，PTIT可以抑制光谐振器和行进光场之间的耦合。我们进一步表明，可以修改谐振器的分散以表现出缓慢或快速的光线。由于热响应的速度相对较慢，我们认为PTIT的带宽为$2π\ times15.9 $ Hz，从理论上讲，该组速度低至$ 5 $ m/s。
Induced transparency is a common but remarkable effect in optics. It occurs when a strong driving field is used to render an otherwise opaque material transparent. The effect is known as electromagnetically induced transparency in atomic media and optomechanically induced transparency in systems that consist of coupled optical and mechanical resonators. In this work, we introduce the concept of photothermally induced transparency (PTIT). It happens when an optical resonator exhibits non-linear behavior due to optical heating of the resonator or its mirrors. Similar to the established mechanisms for induced transparency, PTIT can suppress the coupling between an optical resonator and a traveling optical field. We further show that the dispersion of the resonator can be modified to exhibit slow or fast light. Because of the relatively slow thermal response, we observe the bandwidth of the PTIT to be $2π\times15.9$ Hz which theoretically suggests a group velocity of as low as $5$ m/s.
