Tunable quantum cascade lasers for midinfrared spectroscopic sensing by Li, Jinghao

“…As a result, they have become valuable tools for precise optical sensing in various applications, including environmental monitoring, homeland security, and safe production. Particularly, there is a demand for single-mode lasers that can be tuned over a wide wavelength range without mode hopping, as they hold promise for detecting and distinguishing distinct components in chemical mixtures through quantitative analysis on absorption spectra. …”
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