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Micro-Ring Resonator Assisted Photothermal Spectroscopy of Water Vapor.
- Source :
- Sensors (14248220); Jun2024, Vol. 24 Issue 11, p3679, 11p
- Publication Year :
- 2024
-
Abstract
- We demonstrated, for the first time, micro-ring resonator assisted photothermal spectroscopy measurement of a gas phase sample. The experiment used a telecoms wavelength probe laser that was coupled to a silicon nitride photonic integrated circuit using a fibre array. We excited the photothermal effect in the water vapor above the micro-ring using a 1395 nm diode laser. We measured the 1f and 2f wavelength modulation response versus excitation laser wavelength and verified the power scaling behaviour of the signal. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 24
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Sensors (14248220)
- Publication Type :
- Academic Journal
- Accession number :
- 177860330
- Full Text :
- https://doi.org/10.3390/s24113679