Journal
OPTO-ELECTRONIC ADVANCES
Volume 1, Issue 9, Pages -Publisher
CHINESE ACAD SCI, INST OPTICS & ELECTRONICS, ED OFF OPTO-ELECTRONIC ADV
DOI: 10.29026/oea.2018.180015
Keywords
WGM microresonators; sensors; microlasers; microcavities
Categories
Funding
- National Natural Science Foundation of China [11774102]
- Scientific Research Funds and Promotion Program for Young and Middle-aged Teacher in Science & Technology Research of Huaqiao University [ZQN-YX504, 17BS412]
- National Research Foundation Singapore (NRF) [NRF-CRP13-2014-05]
- European Union [798916]
- Singapore Ministry of Education [RG89/16]
- Open Fund of IPOC (BUPT)
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Optical whispering gallery mode (WGM) microresonators have attracted great attention due to their remarkable properties such as extremely high quality factor, small mode volume, tight confinement of modes, and strong evanescent field. All these properties of WGM microresonators have ensured their great potentials for applications, such as physical sensors, bio/chemical sensors and microlasers. In this mini-review, the key parameters and coupling conditions of WGM microresonators are firstly introduced. The geometries of WGM optical microcavities are presented based on their fabrication methods. This is followed by the discussion on the state-of-the-art applications of WGM microresonators in sensors and microlasers.
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