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. 2024-01-19T13:33:44Z 2024-01-19T13:33:44Z 2022-01-10 2021-10 2330-4022 https://pubs.kist.re.kr/handle/201004/116322 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. English AMER CHEMICAL SOC Demonstration of Hybrid High-Q Hexagonal Boron Nitride Microresonators Article 10.1021/acsphotonics.1c00973 1 ACS PHOTONICS, v.8, no.10, pp.3027 - 3033 ACS PHOTONICS 8 10 3027 3033 N scie scopus 000710954200027 2-s2.0-85117338748 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Optics Physics, Applied Physics, Condensed Matter Science & Technology - Other Topics Materials Science Optics Physics Article MICRODISK RESONATORS nanophotonics whispering gallery mode resonators 2D material optical absorption hybrid devices chemical vapor deposition