Journal
NANOPHOTONICS
Volume 9, Issue 9, Pages 2997-3002Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/nanoph-2020-0242
Keywords
high quality factor; microdisk lasers; whispering gallery mode
Categories
Funding
- Guangdong International Cooperation Project [2019A050510002]
- Shenzhen Key Laboratory Project [ZDSYS201603311644527]
- Longgang Key Laboratory Project [ZSYS2017003, LGKCZSYS2018000015]
- Longgang Matching Support Fund [CXPTPT-2017-YJ-002, 201617486]
- Hong Kong Research Grants Council General Research Fund [14209519]
- President's Fund [PF01000154]
- Optical Communication Core Chip Research Platform, Multi-Year Research Grants from the Research Services and Knowledge Transfer Office at the University of Macau [MYRG2017-00152-FST, MYRG2018-00086-IAPME]
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Microdisk lasers are important components in photonic integrated circuits (PICs), of which the whispering gallery modes (WGMs) are usually confined within a two-dimensional (2D) planar slab. Here, owing to the strain relaxation of quantum wells by wet-etching method, we present ultra-thin curved visible microdisk lasers with single-mode lasing emission and a high quality factor of similar to 17,000, which enable a 3D spatial intensity distribution of WGMs and provide an extra degree of freedom for the confined photons compared with the conventional 2D inplane WGMs. The curved microdisk lasers with a 3D spatial profile of WGMs may provide attractive applications in flexible and multilevel photon sources for the PICs.
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