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Conferences > LACSEA > 2020 > LTu3C > LTu3C.5

Continuous-Filtering Vernier Spectrometer with Improved Design and Performance

Francisco Senna Vieira, Chuang Lu, Isak Silander, Aleksander Giuszek, Grzegorz Sobon, and Aleksandra Foltynowicz

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Abstract

We present a robust cavity-enhanced comb-based spectrometer with a 6.6 GHz resolution and 60 Hz acquisition rate, based on the continuous-filtering Vernier principle, a fixed diffraction grating, a custom-made chopper wheel, and a low-bandwidth comb-cavity stabilization scheme. We measure a CO2 spectrum with 5 x 10-8 cm-1 sensitivity in 17 ms.

© 2020 The Author(s)

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