| DOI | Trouver le DOI : https://doi.org/10.1109/PN52152.2021.9597905 |
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| Auteur | Rechercher : Cheriton, Ross1; Rechercher : Tonita, Erin1; Rechercher : Densmore, Adam2; Rechercher : Dezfouli, Mohsen Kamandar3; Rechercher : Xu, Dan-Xia1; Rechercher : Schmid, Jens H.1; Rechercher : Cheben, Pavel1; Rechercher : Janz, Siegfried1; Rechercher : Sivanandam, Suresh; Rechercher : De Mooij, Ernst |
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| Affiliation | - Conseil national de recherches du Canada. Électronique et photonique avancées
- Conseil national de recherches du Canada. Herzberg en astronomie et en astrophysique
- Conseil national de recherches du Canada
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| Format | Texte, Article |
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| Conférence | 2021 Photonics North (PN), May 31 - June 2, 2021, Toronto, ON, Canada |
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| Sujet | silicon; waveguide; microring; resonator; sensing; gas; spectroscopy; remote; correlation; astrophotonics; photonics; integrated; matched filters; sensitivity; absorption; resonator filters |
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| Résumé | The absorption spectra of distant targets can be used for remote gas detection. However, the detection of very faint absorption features is difficult since noise can dominate the molecular signal in the acquired spectrum. Rather than using typical dispersive spectroscopy, high sensitivity remote gas sensing is possible by correlation spectroscopy using a spectral matching filter. In this work, we use a thermo-optically tunable nanophotonic silicon waveguide ring resonator as an integrated spectral filter to obtain a correlation signal proportional to the absorption spectrum of a specific gas. We demonstrate the ability to resolve very small absorption depth changes using integrated photonics at the level required for the characterization of exoplanet atmospheres during transits of their host stars. |
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| Date de publication | 2021-05-31 |
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| Maison d’édition | IEEE |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | fc3106b3-1e1a-4452-9a80-809002a99389 |
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| Enregistrement créé | 2022-09-20 |
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| Enregistrement modifié | 2022-09-20 |
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