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Scattering of THz phonons

Abstract:

Using heat pulses, we studied the elastic scattering of THz phonons in sapphire and calcium tungstate, two materials of interest as absorbers in composite detectors of particles and photons. For sapphire, we modelled the power dependences of specularly reflected and bulk scattered phonons, whilst for calcium tungstate the transmitted diffusive signal was measured. In both materials, the measured rate was consistent with Rayleigh scattering by isotopes, of oxygen in Al2O3 and of tungsten in Ca...

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Publication status:
Published

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Authors


Wigmore, JK More by this author
Kozorezov, AG More by this author
bin Rani, H More by this author
Giltrow, M More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Particle Physics
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Volume:
316
Pages:
589-591
Publication date:
2002-05-05
DOI:
ISSN:
0921-4526
URN:
uuid:191aee27-9d42-495f-a88a-76ac7cab6a8d
Source identifiers:
14271
Local pid:
pubs:14271

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