THz acoustic phonon spectroscopy and nanoscopy by using piezoelectric semiconductor heterostructures

Pierre Adrien Mante, Yu Ru Huang, Szu Chi Yang, Tzu Ming Liu, Alexei A. Maznev, Jinn-Kong Sheu, Chi Kuang Sun

研究成果: Review article同行評審

29 引文 斯高帕斯(Scopus)

摘要

Thanks to ultrafast acoustics, a better understanding of acoustic dynamics on a short time scale has been obtained and new characterization methods at the nanoscale have been developed. Among the materials that were studied during the development of ultrafast acoustics, nitride based heterostructures play a particular role due to their piezoelectric properties and the possibility to generate phonons with over-THz frequency and bandwidth. Here, we review some of the work performed using this type of structure, with a focus on THz phonon spectroscopy and nanoscopy. First, we present a brief description of the theory of coherent acoustic phonon generation by piezoelectric heterostructure. Then the first experimental observation of coherent acoustic phonon generated by the absorption of ultrashort light pulses in piezoelectric heterostructures is presented. From this starting point, we then present some methods developed to realize customizable phonon generation. Finally we review some more recent applications of these structures, including imaging with a nanometer resolution, broadband attenuation measurements with a frequency up to 1 THz and phononic bandgap characterization.

原文English
頁(從 - 到)52-65
頁數14
期刊Ultrasonics
56
DOIs
出版狀態Published - 2015 二月 1

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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