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Stimulated Raman scattering detection for chemically specific time-resolved imaging of gases
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0003-4853-870X
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0001-8355-2414
Institut für Technische Optik, Universität Stuttgart.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0003-4879-8261
2016 (engelsk)Inngår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 24, nr 9, s. 9984-9993Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

stimulated Raman scattering (SRS) imaging technique based on spatial modulation of the pump beam has been used to study gases. The SRS gain signal was separated from the Stokes beam background in the spatial frequency domain. The SRS signal shows linear behaviour with the gas pressure at a range from 1.0 to 8.0 bars. The signal is linearly proportional to the pump beam intensity while it is enhanced with increasing the Stokes beam intensity to a certain limit than it saturates. Further, the chemical specificity of the technique has been investigated. Two sharp peaks with line width at half maximum of about 0.30 nm have been obtained at Stokes beam wavelengths of 629.93 nm and 634.05 nm corresponding to the methane and ethylene gases, respectively. The results show that SRS imaging is a promising technique to provide chemical specificity as well as spatial and temporal information of gaseous species

sted, utgiver, år, opplag, sider
2016. Vol. 24, nr 9, s. 9984-9993
HSV kategori
Forskningsprogram
Experimentell mekanik
Identifikatorer
URN: urn:nbn:se:ltu:diva-12946DOI: 10.1364/OE.24.009984ISI: 000375259600080Scopus ID: 2-s2.0-84973345214Lokal ID: c197e0a8-1b93-48a3-84b6-7d1f57b1ce72OAI: oai:DiVA.org:ltu-12946DiVA, id: diva2:985897
Merknad
Validerad; 2016; Nivå 2; 20160527 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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