| Autor: |
Jahromi KE, Nematollahi M, Krebbers R, Abbas MA, Khodabakhsh A, Harren FJM |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2021 Apr 12; Vol. 29 (8), pp. 12381-12397. |
| DOI: |
10.1364/OE.418072 |
| Abstrakt: |
We present a multi-species trace gas sensor based on a fast, compact home-built Fourier transform spectrometer (FTS) combined with a broadband mid-infrared supercontinuum (SC) source. The spectrometer covers the spectral bandwidth of the SC source (2 - 4 µm) and provides a best spectral resolution of 1 GHz in 6 seconds. It has a detection sensitivity of a few hundred of ppbv Hz -1/2 for different gas species. We study the performance of the developed spectrometer in terms of precision, linearity, long-term stability, and multi-species detection. We use the spectrometer for measuring fruit-produced volatiles under different atmospheric conditions and compare the performance with a previously developed scanning grating-based spectrometer. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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