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Fabrication and Testing of Photonic Thermometers
Published on: October 24, 2018
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Real-Time Ratiometric Optical Nanoscale Thermometry
Yongliang Chen, Chi Li, Tieshan Yang
1Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk142190, Russia.
ACS Nano
|January 20, 2023
Summary
We developed a real-time, diamond-based nanothermometry technique using codoped nanodiamonds. This method offers high sensitivity and resolution for precise nanoscale temperature measurements in various applications.
Area of Science:
- Nanophotonics and Quantum Sensing
- Materials Science and Engineering
Background:
- All-optical nanothermometry is crucial for remote nanoscale temperature measurement.
- Key nanothermometer metrics include brightness, sensitivity, and resolution.
Purpose of the Study:
- To demonstrate a real-time, diamond-based nanothermometry technique.
- To achieve high sensitivity and record-high resolution for nanoscale temperature mapping.
Main Methods:
- Utilized codoped nanodiamonds with two group IV color centers as temperature sensors.
- Employed spectrally separated Stokes and anti-Stokes fluorescence signals.
- Implemented a parallel detection scheme with filtering optics and photon counters for fast readout.
Main Results:
- Achieved excellent sensitivity of 1.8% K-1.
- Obtained a record-high resolution of 5.8 × 104 K Hz-1/2 W cm-2.
- Successfully monitored temperature changes in microcircuits and MoTe2 field-effect transistors.
Conclusions:
- The developed nanothermometry technique offers a powerful, alternative strategy for time-resolved temperature monitoring.
- Advances capabilities for mapping micro-/nanoscale devices and biological environments.
