Demonstration of Hybrid High-Q Hexagonal Boron Nitride Microresonators
- Authors
- Das, Anustup; Lee Dongjun; Shandilya, Prasoon K.; Kim, Sejeong; Kang, Gumin; Lake, David P.; Behera, Bishnupada; Sukachev, Denis; Aharonovich, Igor; Lee, Jung-Hyun; Park, Jaehyun; Barclay, Paul E.
- Issue Date
- 2021-10
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS PHOTONICS, v.8, no.10, pp.3027 - 3033
- Abstract
- Hexagonal boron nitride (hBN) is a wide bandgap van der Waals material that is emerging as a powerful platform for quantum optics and nanophotonics. In this work, we demonstrate whispering gallery mode silica microresonators hybridized with thin layers of hBN that exhibit high intrinsic optical quality factor >7 x 10(5) and a linear absorption coefficient of 9.5 cm(-1). Measurements of the effect of hBN thickness on optical Q and comparison with a theoretical model allows the linear optical absorption coefficient of the hBN films to be estimated. These high-Q devices will be useful for applications in quantum and nonlinear optics, and their hybridized geometry provides a sensitive platform for evaluating losses in hBN and other 2D materials.
- Keywords
- MICRODISK RESONATORS; nanophotonics; whispering gallery mode; resonators; 2D material; optical absorption; hybrid devices; chemical vapor deposition
- ISSN
- 2330-4022
- URI
- https://pubs.kist.re.kr/handle/201004/116322
- DOI
- 10.1021/acsphotonics.1c00973
- Appears in Collections:
- KIST Article > 2021
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