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Narrow-band detection of propagating coherent acoustic phonons in piezoelectric InGaN/GaN multiple-quantum wells
Chen, CY1; Wen, YC1; Chen, HP1; Liu, TM1; Pan, CC2; Chyi, JI2; Sun, CK3
2007
Source PublicationAPPLIED PHYSICS LETTERS
ISSN1077-3118
Volume91Issue:13
Abstract

The authors demonstrated that the piezoelectric superlattice, can serve as narrow-band detectors for propagating coherent longitudinal acoustic phonons at multiple frequencies corresponding to the spatial frequency of the superlattice and its higher harmonics, and its detection bandwidth is determined by the total structure width. By optically exciting a broadband propagating longitudinal acoustic pulse from a thin Ni film, the authors studied the acoustic spectral sensitivity function of a ten-period In0.12Ga0.88N/GaN multiple quantum well. Because the barriers (19 nm) and wells (3.6 nm) are of different widths, the second detection band, corresponding to the second harmonic of the fundamental frequency, can be resolved. (C) 2007 American Institute of Physics.

DOIhttp://dx.doi.org/10.1063/1.2785126
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000249787000079
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被引频次[WOS]:8   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题Faculty of Health Sciences
Affiliation1.Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
2.Optical Sciences Center, National Central University, Chung-Li 32054, Taiwan
3.Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan and Research Center for Applied Sciences, Academia Sinica, Taipei 10617, Taiwan
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GB/T 7714
Chen, CY,Wen, YC,Chen, HP,et al. Narrow-band detection of propagating coherent acoustic phonons in piezoelectric InGaN/GaN multiple-quantum wells[J]. APPLIED PHYSICS LETTERS,2007,91(13).
APA Chen, CY.,Wen, YC.,Chen, HP.,Liu, TM.,Pan, CC.,...&Sun, CK.(2007).Narrow-band detection of propagating coherent acoustic phonons in piezoelectric InGaN/GaN multiple-quantum wells.APPLIED PHYSICS LETTERS,91(13).
MLA Chen, CY,et al."Narrow-band detection of propagating coherent acoustic phonons in piezoelectric InGaN/GaN multiple-quantum wells".APPLIED PHYSICS LETTERS 91.13(2007).
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