Published November 7, 2023
| Version v1
Conference paper
Open
Development of a Waveguide-Based Interferometer for the Measurement of Trace Substances
Creators
-
1.
FHNW University of Applied Sciences and Arts
- 2. vario-optics AG, Heiden
Description
Photonic integration on a chip has the potential to develop new low-cost, high-performance sensing devices [1, 2]. A proof of concept of the sensing capabilities of a waveguide-based photothermal interferometer for the measurement of traces of light-absorbing substances (soot particles, gases) has been achieved. The measurement principle can also be extended to a wide range of other applications such as refractive index measurements, or vibration/distance sensors. A unique feature is that the waveguide technology allows for a passive operation of the interferometer, i.e., no quadrature point control is required.
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20230912_Exstended Abstract_OST_final_2_Weingartner.pdf
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