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Wall-collision line broadening of molecular oxygen within nanoporous materials
Lund University.
Lund University.
Lund University.
RISE - Research Institutes of Sweden, Material och produktion, IVF.ORCID-id: 0000-0003-4860-8763
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2011 (Engelska)Ingår i: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 84, nr 4Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Wall-collision broadening of near-infrared absorption lines of molecular oxygen confined in nanoporous zirconia is studied by employing high-resolution diode-laser spectroscopy. The broadening is studied for pores of different sizes under a range of pressures, providing new insights on how wall collisions and intermolecular collisions influence the total spectroscopic line profile. The pressure series show that wall-collision broadening is relatively more prominent under reduced pressures, enabling sensitive means to probe pore sizes of porous materials. In addition, we show that the total wall-collision-broadened profile strongly deviates from a Voigt profile and that wall-collision broadening exhibits an additive-like behavior to the pressure and Doppler broadening. © 2011 American Physical Society.

Ort, förlag, år, upplaga, sidor
2011. Vol. 84, nr 4
Nationell ämneskategori
Materialteknik
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URN: urn:nbn:se:ri:diva-13356DOI: 10.1103/PhysRevA.84.042705Scopus ID: 2-s2.0-80053998583OAI: oai:DiVA.org:ri-13356DiVA, id: diva2:973562
Tillgänglig från: 2016-09-22 Skapad: 2016-09-22 Senast uppdaterad: 2019-06-17Bibliografiskt granskad

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Förlagets fulltextScopushttp://journals.aps.org/pra/abstract/10.1103/PhysRevA.84.042705

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