Suspended Tantalum Pentoxide Rib Waveguides for Laser Absorption Spectroscopy
- 1 June 2019
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1
Abstract
Development of miniature photonic sensors using optical waveguides currently represents an attractive research direction. Owing to more than two decades of research on quantum/interband cascade lasers, laser absorption spectroscopy in the mid-infrared (MIR) domain can be brought to photonic chips. Importantly, the so-called molecular fingerprints, unique molecular absorption spectra, can be addressed in MIR. But waveguides need to adapt for sensing scenarios and one desired feature is a large overlap between the light and the analyte.Keywords
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