Efficient excitation of guided acoustic waves in semiconductor nanorods through external metallic acoustic transducer

Szu Chi Yang; Yueh Chun Wu; Pierre Adrien Mante; Chien Cheng Chen; Hung Pin Chen; Hsiang Yu Chou; Min Hsiung Shih; Chi Kuang Sun

doi:10.1063/1.4904414

Efficient excitation of guided acoustic waves in semiconductor nanorods through external metallic acoustic transducer

Szu Chi Yang, Yueh Chun Wu, Pierre Adrien Mante, Chien Cheng Chen, Hung Pin Chen, Hsiang Yu Chou, Min Hsiung Shih, Chi Kuang Sun

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

We demonstrate that guided acoustic waves inside a nanorod can be excited through an external metallic acoustic transducer. By attaching gold nanodisks on top of GaAs nanorods, the femtosecond optical excitation on the external acoustic transducer enables the generation of guided acoustic waves in the rods. The propagation behavior and mode shape of the observed guided acoustic waves are analyzed. These observations would not only lead to the development of superior external transducers for acoustic imaging, but also provide an experimental system for the study of the acoustic phonon transport behavior in nanorods and nanowires.

Original language	English
Article number	243101
Journal	Applied Physics Letters
Volume	105
Issue number	24
DOIs	https://doi.org/10.1063/1.4904414
Publication status	Published - 15 Dec 2014
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4904414

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abstract = "We demonstrate that guided acoustic waves inside a nanorod can be excited through an external metallic acoustic transducer. By attaching gold nanodisks on top of GaAs nanorods, the femtosecond optical excitation on the external acoustic transducer enables the generation of guided acoustic waves in the rods. The propagation behavior and mode shape of the observed guided acoustic waves are analyzed. These observations would not only lead to the development of superior external transducers for acoustic imaging, but also provide an experimental system for the study of the acoustic phonon transport behavior in nanorods and nanowires.",

author = "Yang, {Szu Chi} and Wu, {Yueh Chun} and Mante, {Pierre Adrien} and Chen, {Chien Cheng} and Chen, {Hung Pin} and Chou, {Hsiang Yu} and Shih, {Min Hsiung} and Sun, {Chi Kuang}",

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AU - Yang, Szu Chi

AU - Wu, Yueh Chun

AU - Mante, Pierre Adrien

AU - Chen, Chien Cheng

AU - Chen, Hung Pin

AU - Chou, Hsiang Yu

AU - Shih, Min Hsiung

AU - Sun, Chi Kuang

PY - 2014/12/15

Y1 - 2014/12/15

N2 - We demonstrate that guided acoustic waves inside a nanorod can be excited through an external metallic acoustic transducer. By attaching gold nanodisks on top of GaAs nanorods, the femtosecond optical excitation on the external acoustic transducer enables the generation of guided acoustic waves in the rods. The propagation behavior and mode shape of the observed guided acoustic waves are analyzed. These observations would not only lead to the development of superior external transducers for acoustic imaging, but also provide an experimental system for the study of the acoustic phonon transport behavior in nanorods and nanowires.

AB - We demonstrate that guided acoustic waves inside a nanorod can be excited through an external metallic acoustic transducer. By attaching gold nanodisks on top of GaAs nanorods, the femtosecond optical excitation on the external acoustic transducer enables the generation of guided acoustic waves in the rods. The propagation behavior and mode shape of the observed guided acoustic waves are analyzed. These observations would not only lead to the development of superior external transducers for acoustic imaging, but also provide an experimental system for the study of the acoustic phonon transport behavior in nanorods and nanowires.

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

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ER -

Efficient excitation of guided acoustic waves in semiconductor nanorods through external metallic acoustic transducer

Abstract

ASJC Scopus subject areas

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