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arXiv:1303.5851 (physics)
[Submitted on 23 Mar 2013]

Title:Temperature-dependent bulk viscosity of nitrogen gas determined from spontaneous Rayleigh-Brillouin scattering

Authors:Ziyu Gu, Wim Ubachs
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Abstract:Values for the bulk viscosity of molecular nitrogen gas (N2) were derived from spontaneous Rayleigh-Brillouin (RB) scattering at ultraviolet wavelengths (366.8 nm) and at a 90 degree scattering angle. Analysis of the scattering profiles yield values showing a linear increasing trend in the temperature interval from 255 K to 340 K. The present values, pertaining to hypersound acoustics at frequencies in the GHz domain, are found to be in agreement with results from acoustic attenuation experiments in N2 performed at MHz frequencies.
Subjects: Optics (physics.optics); Materials Science (cond-mat.mtrl-sci)
Cite as: arXiv:1303.5851 [physics.optics]
  (or arXiv:1303.5851v1 [physics.optics] for this version)
  https://doi.org/10.48550/arXiv.1303.5851
Journal reference: Optics Letters 38, 1110-1112 (2013)
Related DOI: https://doi.org/10.1364/OL.38.001110

Submission history

From: Ziyu Gu [view email]
[v1] Sat, 23 Mar 2013 14:45:28 UTC (1,275 KB)
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