Three-dimensional phononic nanocrystal composed of ordered quantum dots

Yu Chieh Wen; Jia Hong Sun; Christian Dais; Detlev Grützmacher; Tsung Tsong Wu; Jin Wei Shi; Chi Kuang Sun

doi:10.1063/1.3371683

Three-dimensional phononic nanocrystal composed of ordered quantum dots

Yu Chieh Wen, Jia Hong Sun, Christian Dais, Detlev Grützmacher, Tsung Tsong Wu, Jin Wei Shi, Chi Kuang Sun

電機工程學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

26 引文斯高帕斯（Scopus）

摘要

We demonstrated a nanoscaled artificial phononic crystal composed of three-dimensionally ordered quantum dots (QDs) with functional acoustic properties. Femtosecond ultrasonic technique is used to investigate the lattice dynamics of this phononic nanocrystal. The measurement results indicate that three-dimensional ordering and uniformity of the QDs are important factors influencing the observed acoustic resonance at the forbidden bands. For well-arranged QDs, noticeable features of the phononic band gap and the associated phonon cavity mode can be found, while this nanocrystal also serves as an effective acoustic medium, or acoustic meta material, for low-frequency acoustic phonons.

原文	???core.languages.en_GB???
文章編號	123113
期刊	Applied Physics Letters
卷	96
發行號	12
DOIs	https://doi.org/10.1063/1.3371683
出版狀態	已出版 - 2010

存取文件

10.1063/1.3371683

引用此

@article{6b2d645187e34f19bebaaf9d000a9f26,

title = "Three-dimensional phononic nanocrystal composed of ordered quantum dots",

abstract = "We demonstrated a nanoscaled artificial phononic crystal composed of three-dimensionally ordered quantum dots (QDs) with functional acoustic properties. Femtosecond ultrasonic technique is used to investigate the lattice dynamics of this phononic nanocrystal. The measurement results indicate that three-dimensional ordering and uniformity of the QDs are important factors influencing the observed acoustic resonance at the forbidden bands. For well-arranged QDs, noticeable features of the phononic band gap and the associated phonon cavity mode can be found, while this nanocrystal also serves as an effective acoustic medium, or acoustic meta material, for low-frequency acoustic phonons.",

author = "Wen, {Yu Chieh} and Sun, {Jia Hong} and Christian Dais and Detlev Gr{\"u}tzmacher and Wu, {Tsung Tsong} and Shi, {Jin Wei} and Sun, {Chi Kuang}",

note = "Funding Information: This work was sponsored by the National Science Council of Taiwan under Grant No. NSC-98-2120-M-002-001. Y.-C.W. would like to thank the MediaTek Fellowship for financial support.",

year = "2010",

doi = "10.1063/1.3371683",

language = "???core.languages.en_GB???",

volume = "96",

journal = "Applied Physics Letters",

issn = "0003-6951",

number = "12",

}

TY - JOUR

T1 - Three-dimensional phononic nanocrystal composed of ordered quantum dots

AU - Wen, Yu Chieh

AU - Sun, Jia Hong

AU - Dais, Christian

AU - Grützmacher, Detlev

AU - Wu, Tsung Tsong

AU - Shi, Jin Wei

AU - Sun, Chi Kuang

N1 - Funding Information: This work was sponsored by the National Science Council of Taiwan under Grant No. NSC-98-2120-M-002-001. Y.-C.W. would like to thank the MediaTek Fellowship for financial support.

PY - 2010

Y1 - 2010

N2 - We demonstrated a nanoscaled artificial phononic crystal composed of three-dimensionally ordered quantum dots (QDs) with functional acoustic properties. Femtosecond ultrasonic technique is used to investigate the lattice dynamics of this phononic nanocrystal. The measurement results indicate that three-dimensional ordering and uniformity of the QDs are important factors influencing the observed acoustic resonance at the forbidden bands. For well-arranged QDs, noticeable features of the phononic band gap and the associated phonon cavity mode can be found, while this nanocrystal also serves as an effective acoustic medium, or acoustic meta material, for low-frequency acoustic phonons.

AB - We demonstrated a nanoscaled artificial phononic crystal composed of three-dimensionally ordered quantum dots (QDs) with functional acoustic properties. Femtosecond ultrasonic technique is used to investigate the lattice dynamics of this phononic nanocrystal. The measurement results indicate that three-dimensional ordering and uniformity of the QDs are important factors influencing the observed acoustic resonance at the forbidden bands. For well-arranged QDs, noticeable features of the phononic band gap and the associated phonon cavity mode can be found, while this nanocrystal also serves as an effective acoustic medium, or acoustic meta material, for low-frequency acoustic phonons.

UR - http://www.scopus.com/inward/record.url?scp=77950314372&partnerID=8YFLogxK

U2 - 10.1063/1.3371683

DO - 10.1063/1.3371683

M3 - 期刊論文

AN - SCOPUS:77950314372

SN - 0003-6951

VL - 96

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 12

M1 - 123113

ER -

Three-dimensional phononic nanocrystal composed of ordered quantum dots

摘要

存取文件

指紋

引用此