Number of the records: 1
Suspended nanophotonic waveguide for isotope-specific CO2 detection
- 1.
SYSNO ASEP 0605169 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Suspended nanophotonic waveguide for isotope-specific CO2 detection Author(s) Salaj, J. (SK)
Vlk, M. (CZ)
Zakoldaev, R. (RU)
Seton, R. (SE)
Čtyroký, Jiří (URE-Y) RID
Alberti, S. (AR)
Aksnes, A. (NO)
Jágerská, J. (CZ)Number of authors 8 Source Title Optica. - : Optical Society of America - ISSN 2334-2536
Roč. 11, č. 12 (2024), s. 1654-1662Number of pages 9 s. Publication form Print - P Language eng - English Country US - United States Keywords Optical waveguides ; laser spectrometer ; Nanophotonic waveguides OECD category Optics (including laser optics and quantum optics) R&D Projects EH22_008/0004573 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support URE-Y - RVO:67985882 UT WOS 001398034200008 EID SCOPUS 85213240573 DOI https://doi.org/10.1364/OPTICA.533710 Annotation The spectroscopic detection of gases and their stable isotopes holds significant value in bio-sciences and climate studies. However, achieving high precision has long been confined to bulky and costly equipment. In this work, we introduce a nanophotonic waveguide that is capable of detecting CO2 gas down to 20 parts per billion, and for the first time perform accurate stable isotope ratio measurements. The waveguide leverages a suspended membrane design with microstructured cladding, providing a high evanescent field confinement factor of 102%, moderate loss of 3.4 dB/cm, and effective suppression of etalons. The delta 13C isotope ratio precision of 0.2 parts per thousand was achieved, replicating the performance of high-end laser absorption spectrometers. This marks the inaugural instance of on-chip, isotope-specific gas detection with a compact and cost-efficient system scalable to sensor Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2025 Electronic address https://opg.optica.org/optica/fulltext.cfm?uri=optica-11-12-1654&id=565266
Number of the records: 1