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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.
Original language | English |
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Pages (from-to) | 29095-29106 |
Number of pages | 12 |
Journal | Optics Express |
Volume | 29 |
Issue number | 18 |
DOIs | |
Publication status | Published - 25 Aug 2021 |
Keywords
- integrated photonic thermometer
- micro-transfer printing
- performance
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EPSRC Centre for Doctoral Training in Diamond Science and Technology
Kemp, A., Dziechciarczyk, L. & Hill, P.
EPSRC (Engineering and Physical Sciences Research Council), Element Six (UK) Limited, Fraunhofer UK Research Limited
1/04/14 → 30/09/22
Project: Research - Studentship
Datasets
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Data for: "High precision integrated photonic thermometry enabled by a transfer printed diamond resonator on a GaN waveguide chip"
Smith, J. (Creator) & Strain, M. (Supervisor), University of Strathclyde, 17 Aug 2021
DOI: 10.15129/f7404ca9-fd0e-4ef6-a8ad-8372f0ff52db
Dataset