Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7133902 | Sensors and Actuators A: Physical | 2018 | 5 Pages |
Abstract
Resistance thermometry provides a time-tested method for taking temperature measurements that has been painstakingly developed over the last century. However, fundamental limits to resistance-based approaches along with a desire to reduce the cost of sensor ownership and increase sensor stability has produced considerable interest in developing photonic temperature sensors. Here we demonstrate that silicon photonic crystal cavity-based thermometers can measure temperature with uncertainities of 175âmK (kâ=â1), where uncertainties are dominated by ageing effects originating from the hysteresis in the device packaging materials. Our results, a â4-fold improvement over recent developments, clearly demonstate the rapid progress of silicon photonic sensors in replacing legacy devices.
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Authors
Nikolai Klimov, Thomas Purdy, Zeeshan Ahmed,