Optical Thermometry with Quantum Emitters in Hexagonal Boron Nitride

Yongliang Chen; Thinh Ngoc Tran; Ngoc My Hanh Duong; Chi Li; Milos Toth; Carlo Bradac; Igor Aharonovich; Alexander Solntsev; Toan Trong Tran

arXiv · 2003.03869

Optical Thermometry with Quantum Emitters in Hexagonal Boron Nitride

Yongliang Chen·Thinh Ngoc Tran·Ngoc My Hanh Duong·Chi Li·Milos Toth·Carlo Bradac·Igor Aharonovich·Alexander Solntsev·Toan Trong Tran

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Abstract

Nanoscale optical thermometry is a promising non-contact route for measuring local temperature with both high sensitivity and spatial resolution. In this work, we present a deterministic optical thermometry technique based on quantum emitters in nanoscale hexagonal boron-nitride. We show that these nanothermometers exhibit better performance than that of homologous, all-optical nanothermometers both in sensitivity and range of working temperature. We demonstrate their effectiveness as nanothermometers by monitoring the local temperature at specific locations in a variety of custom-built micro-circuits. This work opens new avenues for nanoscale temperature measurements and heat flow studies in miniaturized, integrated devices.

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Yongliang Chen, Thinh Ngoc Tran, Ngoc My Hanh Duong, Chi Li, Milos Toth, Carlo Bradac, Igor Aharonovich, Alexander Solntsev, Toan Trong Tran. 2020-03-08. Optical Thermometry with Quantum Emitters in Hexagonal Boron Nitride. https://arxiv.org/abs/2003.03869

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