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Proceedings Paper

THz acoustic spectroscopy based on GaN nanostructures
Author(s): Kung-Hsuan Lin; Dzung-Han Tsai; Kuan-Jen Wang; Sheng-Hui Chen; Kai-Lun Chi; Jin-Wei Shi; Po-Cheng Chen; Jinn-Kong Sheu
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Paper Abstract

Due to the high attenuation in vitreous silica, acoustic attenuations in the THz regime are typically measured by incoherent techniques such as Raman, neutron, and X-ray scattering. Here, we utilized multiple-quantum-well structures to demonstrate acoustic spectroscopy of vitreous silica up to THz regime. The acoustic properties of silica thin films prepared by chemical deposition methods were characterized in the sub-THz regime. This technique may be useful in resolving debated issues relating to Boson peak around 1 THz.

Paper Details

Date Published: 7 March 2014
PDF: 5 pages
Proc. SPIE 8984, Ultrafast Phenomena and Nanophotonics XVIII, 89840C (7 March 2014); doi: 10.1117/12.2036171
Show Author Affiliations
Kung-Hsuan Lin, Academia Sinica (Taiwan)
Dzung-Han Tsai, Academia Sinica (Taiwan)
Kuan-Jen Wang, Academia Sinica (Taiwan)
Sheng-Hui Chen, National Central Univ. (Taiwan)
Kai-Lun Chi, National Central Univ. (Taiwan)
Jin-Wei Shi, National Central Univ. (Taiwan)
Po-Cheng Chen, National Cheng Kung Univ. (Taiwan)
Jinn-Kong Sheu, National Cheng Kung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8984:
Ultrafast Phenomena and Nanophotonics XVIII
Markus Betz; Abdulhakem Y. Elezzabi; Jin-Joo Song; Kong-Thon Tsen, Editor(s)

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