We demonstrate an approach for the realization of coupled-mode induced transparency (CMIT) in a hybrid polydimethylsiloxane (PDMS)-coated silica microbubble resonator, with an Au microwire inserted in the hollow channel. Owing to the large negative thermo-optics coefficient of PDMS, different radial order modes with opposite thermal sensitivities can coexist in this hybrid microcavity. By applying a current through the Au microwire, which acts as a microheater, the generated Ohmic heating could thermally tune the resonance frequencies and the frequency detuning of the coupled mode to achieve controllable CMIT. This platform offers an efficient and convenient way to obtain controllable CMIT for applications, such as label-free biosensing and quantum information processing.

中文翻译：

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在单个聚二甲基硅氧烷涂层的微泡谐振器中通过欧姆加热的耦合模式引起的透明性

我们展示了一种在杂化聚二甲基硅氧烷（PDMS）涂层的二氧化硅微泡谐振器中实现耦合模式感应透明性（CMIT）的方法，在中空通道中插入了金微丝。由于PDMS的负热光学系数较大，在这种混合微腔中可以同时存在具有相反热敏性的不同径向阶模。通过施加通过用作微型加热器的Au微线的电流，所产生的欧姆加热可热调谐谐振频率和耦合模式的频率失谐，以实现可控的CMIT。该平台为获得可控CMIT的应用提供了一种高效便捷的方法，例如无标记生物传感和量子信息处理等应用。