umu.sePublications
Change search
ReferencesLink to record
Permanent link

Direct link
Fourier transform and Vernier spectroscopy using an optical frequency comb at 3-5.4 μm
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Show others and affiliations
2016 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 41, no 11, 2541-2544 p.Article in journal (Refereed) PublishedText
Abstract [en]

We present a versatilemid-infrared frequency comb spectroscopy system based on a doubly resonant optical parametric oscillator tunable in the 3-5.4 mu m range and two detection methods: a Fourier transform spectrometer (FTS) and a continuous-filtering Vernier spectrometer (CF-VS). Using the FTS with a multipass cell, we measure high precision broadband absorption spectra of CH4 at 3.3 mu m and NO at 5.25 mu m, the latter for the first time with comb spectroscopy, and we detect atmospheric species (CH4, CO, CO2, and H2O) in air in the signal and idler ranges. Multiline fitting yields minimum detectable concentrations of 10-20 ppbHz-1/2 for CH4, NO, and CO. For the first time in the mid-infrared, we perform CF-VS using an enhancement cavity, a grating, and a single detector, and we measure the absorption spectrum of CH4 and H2O in ambient air at similar to 3.3 m mu, reaching a 40 ppb concentration detection limit for CH4 in 2 ms. 

Place, publisher, year, edition, pages
2016. Vol. 41, no 11, 2541-2544 p.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-123438DOI: 10.1364/OL.41.002541ISI: 000377466000038PubMedID: 27244409OAI: oai:DiVA.org:umu-123438DiVA: diva2:949494
Available from: 2016-07-20 Created: 2016-07-04 Last updated: 2016-07-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Khodabakhsh, AmirRamaiah-Badarla, VenkataRutkowski, LucileJohansson, Alexandra C.Foltynowicz, Aleksandra
By organisation
Department of Physics
In the same journal
Optics Letters
Atom and Molecular Physics and Optics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 61 hits
ReferencesLink to record
Permanent link

Direct link