High precision integrated photonic thermometry enabled by a transfer printed diamond resonator on GaN waveguide chip

Smith, J. A., Hill, P., Klitis, C. , Weituschat, L., Postigo, P. A., Sorel, M. , Dawson, M. D. and Strain, M. J. (2021) High precision integrated photonic thermometry enabled by a transfer printed diamond resonator on GaN waveguide chip. Optics Express, 29(18), pp. 29095-29106. (doi: 10.1364/OE.433607) (PMID:34615026)

Abstract

We demonstrate a dual-material integrated photonic thermometer, fabricated by high accuracy micro-transfer printing. A freestanding diamond micro-disk resonator is printed in close proximity to a gallium nitride on a sapphire racetrack resonator, and respective loaded Q factors of 9.1 × 104 and 2.9 × 104 are measured. We show that by using two independent wide-bandgap materials, tracking the thermally induced shifts in multiple resonances, and using optimized curve fitting tools the measurement error can be reduced to 9.2 mK. Finally, for the GaN, in a continuous acquisition measurement we record an improvement in minimum Allan variance, occurring at an averaging time four times greater than a comparative silicon device, indicating better performance over longer time scales.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Strain, Dr Michael and Klitis, Dr Charalambos and Sorel, Professor Marc
• Authors: Smith, J. A., Hill, P., Klitis, C., Weituschat, L., Postigo, P. A., Sorel, M., Dawson, M. D., and Strain, M. J.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Optics Express
• Publisher: Optical Society of America
• ISSN: 1094-4087
• ISSN (Online): 1094-4087
• Published Online: 25 August 2021
• Copyright Holders: Copyright © 2021 The Authors
• First Published: First published in Optics Express 29(18): 29095-29106
• Publisher Policy: Reproduced under a Creative Commons License
• Data DOI: 10.15129/f7404ca9-fd0e-4ef6-a8ad-8372f0ff52db

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
174169		Parallel Heterogeneous Integration of III-V Devices on Silicon Photonic Chips	Marc Sorel	Engineering and Physical Sciences Research Council (EPSRC)	EP/P013570/1	ENG - Electronics & Nanoscale Engineering
301327		`Hetero-print: A holistic approach to transfer-printing for heterogeneous integration in manufacturing	Peter Skabara	Engineering and Physical Sciences Research Council (EPSRC)	EP/R03480X/1	ENG - Electronics & Nanoscale Engineering