HCG VCSELs as one-device gas detectors

Magdalena Marciniak; Lukasz Piskorski; Weronika Glowadzka; Tomasz Czyszanowski

doi:10.1117/12.2647724

17 March 2023 HCG VCSELs as one-device gas detectors

Magdalena Marciniak, Lukasz Piskorski, Weronika Glowadzka, Tomasz Czyszanowski

Proceedings Volume PC12439, Vertical-Cavity Surface-Emitting Lasers XXVII; PC1243908 (2023) https://doi.org/10.1117/12.2647724
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Recently, we presented the idea of a single-element gas detector based on a VCSEL, in which the top mirror is realised as subwavelength grating (SWG). The presence of gas in the vicinity of the grating causes a change in its reflectivity, which leads to a change in the quality factor of the laser cavity. We investigate the possibility of a realisation of a single-element detector based on the SWG VCSEL, in which a Fano-resonance occurs in the SWG. We analyse the performance of such a detector based on the example of an antimonide VCSEL designed as an ethane detector.

Conference Presentation

Citation Download Citation

Magdalena Marciniak, Lukasz Piskorski, Weronika Glowadzka, and Tomasz Czyszanowski "HCG VCSELs as one-device gas detectors", Proc. SPIE PC12439, Vertical-Cavity Surface-Emitting Lasers XXVII, PC1243908 (17 March 2023); https://doi.org/10.1117/12.2647724

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