Volume 18, Issue 2 2104805
Research Article

Purcell Enhancement of a Cavity-Coupled Emitter in Hexagonal Boron Nitride

Johannes E. Fröch

Corresponding Author

Johannes E. Fröch

School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

E-mail: [email protected]; [email protected]

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Chi Li

Chi Li

School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

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Yongliang Chen

Yongliang Chen

School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

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Milos Toth

Milos Toth

School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

ARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

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Mehran Kianinia

Mehran Kianinia

School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

ARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

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Sejeong Kim

Corresponding Author

Sejeong Kim

Department of Electrical and Electronic Engineering, University of Melbourne, Victoria, 3010 Australia

E-mail: [email protected]; [email protected]

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Igor Aharonovich

Igor Aharonovich

School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

ARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), University of Technology Sydney, Ultimo, New South Wales, 2007 Australia

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First published: 27 November 2021
Citations: 19

Abstract

Integration of solid-state quantum emitters into nanophotonic circuits is a critical step towards fully on-chip quantum photonic-based technologies. Among potential materials platforms, quantum emitters in hexagonal boron nitride (hBN) have emerged as a viable candidate over the last years. While the fundamental physical properties have been intensively studied, only a few works have focused on the emitter integration into photonic resonators. Yet, for a potential quantum photonic material platform, the integration with nanophotonic cavities is an important cornerstone, as it enables the deliberate tuning of the spontaneous emission and the improved readout of distinct transitions for a quantum emitter. In this work, the resonant tuning of a monolithic cavity integrated hBN quantum emitter is demonstrated through gas condensation at cryogenic temperature. In resonance, an emission enhancement and lifetime reduction are observed, with an estimate for the Purcell factor of ≈15.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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