Transient microcavity sensor

Fang Jie Shu, Chang Ling Zou, Sahin Kaya Özdemir, Lan Yang, Guang Can Guo

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


A transient and high sensitivity sensor based on high-Q microcavity is proposed and studied theoretically. There are two ways to realize the transient sensor: monitor the spectrum by fast scanning of probe laser frequency or monitor the transmitted light with fixed laser frequency. For both methods, the non-equilibrium response not only tells the ultrafast environment variance, but also enable higher sensitivity. As examples of application, the transient sensor for nanoparticles adhering and passing by the microcavity is studied. It's demonstrated that the transient sensor can sense coupling region, external linear variation together with the speed and the size of a nanoparticle. We believe that our researches will open a door to the fast dynamic sensing by microcavity.

Original languageEnglish (US)
Pages (from-to)30067-30078
Number of pages12
JournalOptics Express
Issue number23
StatePublished - Nov 16 2015

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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