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Applied Physics Letters / Volume 97 / Issue 9 / DIELECTRICS AND FERROELECTRICITY

Appl. Phys. Lett. 97, 092905 (2010); http://dx.doi.org/10.1063/1.3476350 (3 pages)

Bulk acoustic wave delay line in acoustic superlattice

Ruo-Cheng Yin, Si-Yuan Yu, Cheng He, Ming-Hui Lu, and Yan-Feng Chen

Department of Materials Science and Engineering and National Laboratory of Solid-State Microstructures, Nanjing University, Nanjing 210093, People's Republic of China

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(Received 16 June 2010; accepted 17 July 2010; published online 2 September 2010)

The bulk acoustic wave delay lines are demonstrated both theoretically and experimentally based on the acoustic superlattices. In one bulk acoustic wave delay line, two collinear acoustic superlattices are separately located, where the generation and detection of the bulk acoustic waves are executed, respectively. A basic bulk acoustic wave delay line working at 819 MHz with the delay time of 2.46 μs was realized. Furthermore, by employing two enantiomorphous aperiodic acoustic superlattices, a broadband dispersive bulk acoustic wave delay line with the center frequency at 295 MHz has also been fabricated and investigated.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

acoustic delay lines, acoustic waves, superlattices

PACS

  • 43.58.Kr

    Spectrum and frequency analyzers and filters; acoustical and electrical oscillographs; photoacoustic spectrometers; acoustical delay lines and resonators

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3476350

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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