Journal article

Hexagonal Boron Nitride Cavity Optomechanics

Prasoon K Shandilya, Johannes E Froech, Matthew Mitchell, David P Lake, Sejeong Kim, Milos Toth, Bishnupada Behera, Chris Healey, Igor Aharonovich, Paul E Barclay

Nano Letters | AMER CHEMICAL SOC | Published : 2019


Hexagonal boron nitride (hBN) is an emerging layered material that plays a key role in a variety of two-dimensional devices, and has potential applications in nanophotonics and nanomechanics. Here, we demonstrate the first cavity optomechanical system incorporating hBN. Nanomechanical resonators consisting of hBN beams with average dimensions of 12 μm × 1.2 μm × 28 nm and minimum predicted thickness of 8 nm were fabricated using electron beam induced etching and positioned in the optical near-field of silicon microdisk cavities. Of the multiple devices studied here a maximum 0.16 pm/[Formula: see text] sensitivity to the hBN nanobeam motion is demonstrated, allowing observation of thermally ..

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Awarded by Australian Research council

Awarded by Asian Office of Aerospace Research and Development Grant

Awarded by Office of Naval Research Global

Funding Acknowledgements

Financial support from the Australian Research council (via DP180100077, LP170100150), the Asian Office of Aerospace Research and Development Grant FA2386-17-1-4064, the Office of Naval Research Global under Grant N62909-18-1-2025, the Natural Science and Engineering Research Council, and the National Research Council is gratefully acknowledged.