Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures

Tzu Ming Liu; Ja Yu Lu; Chung Chiu Kuo; Meng Ju Yang; Chih Wei Lai; Pi Tai Chou; Ming Hao Chang; Hsiang Lin Liu; Yu Tai Li; Ci Ling Pan; Shih Hung Lin; Chieh Hsiung Kuan; Chi Kuang Sun

doi:10.1117/12.760547

Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures

Tzu Ming Liu^*
, Ja Yu Lu
, Chung Chiu Kuo
, Meng Ju Yang
, Chih Wei Lai
, Pi Tai Chou
, Ming Hao Chang
, Hsiang Lin Liu
, Yu Tai Li
, Ci Ling Pan
, Shih Hung Lin
, Chieh Hsiung Kuan
, Chi Kuang Sun

^*Corresponding author for this work

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

By using a frequency-controlled narrow band THz source, a Fourier Transform Infrared (FTIR) spectroscopy system, and a frequency-controlled terahertz (THz) emitter, for the first time, we studied the THz photon absorption related to the THz confined acoustic vibrations in semiconductor nanocrystals. Through a specific charge separation in the CdSe/CdTe type-II nanocrystals and a piezoelectric coupling in the wurtzite CdSe nanocrystals, the THz photons can be resonantly coupled with (l=1) dipolar modes and the (l=0) breathing modes, respectively. Our results provide new mechanisms for low dimensional systems to convert a THz photon into a phonon of the same frequency..

Original language	English
Title of host publication	Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII
DOIs	https://doi.org/10.1117/12.760547
Publication status	Published - 2008
Event	Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII - San Jose, CA, United States Duration: 2008 Jan 20 → 2008 Jan 23

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6892
ISSN (Print)	0277-786X

Conference

Conference	Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII
Country/Territory	United States
City	San Jose, CA
Period	2008/01/20 → 2008/01/23

Keywords

Confined acoustic phonons
Piezoelectric nanocrystals
Terahertz
Type-II nanocrystals

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.760547

Cite this

Liu, T. M., Lu, J. Y., Kuo, C. C., Yang, M. J., Lai, C. W., Chou, P. T., Chang, M. H., Liu, H. L., Li, Y. T., Pan, C. L., Lin, S. H., Kuan, C. H., & Sun, C. K. (2008). Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures. In Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII Article 68921C (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6892). https://doi.org/10.1117/12.760547

Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures. / Liu, Tzu Ming; Lu, Ja Yu; Kuo, Chung Chiu et al.
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII. 2008. 68921C (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6892).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Liu, TM, Lu, JY, Kuo, CC, Yang, MJ, Lai, CW, Chou, PT, Chang, MH, Liu, HL, Li, YT, Pan, CL, Lin, SH, Kuan, CH & Sun, CK 2008, Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures. in Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII., 68921C, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6892, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII, San Jose, CA, United States, 2008/01/20. https://doi.org/10.1117/12.760547

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title = "Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures",

abstract = "By using a frequency-controlled narrow band THz source, a Fourier Transform Infrared (FTIR) spectroscopy system, and a frequency-controlled terahertz (THz) emitter, for the first time, we studied the THz photon absorption related to the THz confined acoustic vibrations in semiconductor nanocrystals. Through a specific charge separation in the CdSe/CdTe type-II nanocrystals and a piezoelectric coupling in the wurtzite CdSe nanocrystals, the THz photons can be resonantly coupled with (l=1) dipolar modes and the (l=0) breathing modes, respectively. Our results provide new mechanisms for low dimensional systems to convert a THz photon into a phonon of the same frequency..",

keywords = "Confined acoustic phonons, Piezoelectric nanocrystals, Terahertz, Type-II nanocrystals",

author = "Liu, \{Tzu Ming\} and Lu, \{Ja Yu\} and Kuo, \{Chung Chiu\} and Yang, \{Meng Ju\} and Lai, \{Chih Wei\} and Chou, \{Pi Tai\} and Chang, \{Ming Hao\} and Liu, \{Hsiang Lin\} and Li, \{Yu Tai\} and Pan, \{Ci Ling\} and Lin, \{Shih Hung\} and Kuan, \{Chieh Hsiung\} and Sun, \{Chi Kuang\}",

year = "2008",

doi = "10.1117/12.760547",

language = "English",

isbn = "9780819470676",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

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TY - GEN

T1 - Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures

AU - Liu, Tzu Ming

AU - Lu, Ja Yu

AU - Kuo, Chung Chiu

AU - Yang, Meng Ju

AU - Lai, Chih Wei

AU - Chou, Pi Tai

AU - Chang, Ming Hao

AU - Liu, Hsiang Lin

AU - Li, Yu Tai

AU - Pan, Ci Ling

AU - Lin, Shih Hung

AU - Kuan, Chieh Hsiung

AU - Sun, Chi Kuang

PY - 2008

Y1 - 2008

N2 - By using a frequency-controlled narrow band THz source, a Fourier Transform Infrared (FTIR) spectroscopy system, and a frequency-controlled terahertz (THz) emitter, for the first time, we studied the THz photon absorption related to the THz confined acoustic vibrations in semiconductor nanocrystals. Through a specific charge separation in the CdSe/CdTe type-II nanocrystals and a piezoelectric coupling in the wurtzite CdSe nanocrystals, the THz photons can be resonantly coupled with (l=1) dipolar modes and the (l=0) breathing modes, respectively. Our results provide new mechanisms for low dimensional systems to convert a THz photon into a phonon of the same frequency..

AB - By using a frequency-controlled narrow band THz source, a Fourier Transform Infrared (FTIR) spectroscopy system, and a frequency-controlled terahertz (THz) emitter, for the first time, we studied the THz photon absorption related to the THz confined acoustic vibrations in semiconductor nanocrystals. Through a specific charge separation in the CdSe/CdTe type-II nanocrystals and a piezoelectric coupling in the wurtzite CdSe nanocrystals, the THz photons can be resonantly coupled with (l=1) dipolar modes and the (l=0) breathing modes, respectively. Our results provide new mechanisms for low dimensional systems to convert a THz photon into a phonon of the same frequency..

KW - Confined acoustic phonons

KW - Piezoelectric nanocrystals

KW - Terahertz

KW - Type-II nanocrystals

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AN - SCOPUS:42149141160

SN - 9780819470676

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII

T2 - Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII

Y2 - 20 January 2008 through 23 January 2008

ER -

Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures

Abstract

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Keywords

ASJC Scopus subject areas

Access to Document

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