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

研究成果: 書貢獻/報告類型會議貢獻

摘要

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..

原文英語
主出版物標題Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII
DOIs
出版狀態已發佈 - 2008 四月 21
事件Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII - San Jose, CA, 美国
持續時間: 2008 一月 202008 一月 23

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
6892
ISSN(列印)0277-786X

會議

會議Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII
國家美国
城市San Jose, CA
期間08/1/2008/1/23

指紋

Phonons
Nanostructures
Nanocrystals
nanocrystals
Acoustics
Photon
phonons
Photons
acoustics
photons
Interaction
interactions
polarization (charge separation)
breathing
sound waves
wurtzite
Vibrations (mechanical)
Fourier transform infrared spectroscopy
narrowband
emitters

ASJC Scopus subject areas

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

引用此文

Liu, T. M., Lu, J. Y., Kuo, C. C., Yang, M. J., Lai, C. W., Chou, P. T., ... Sun, C. K. (2008). Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures. 於 Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII [68921C] (Proceedings of SPIE - The International Society for Optical Engineering; 卷 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; Yang, Meng Ju; Lai, Chih Wei; Chou, Pi Tai; Chang, Ming Hao; Liu, Hsiang Lin; Li, Yu Tai; Pan, Ci Ling; Lin, Shih Hung; Kuan, Chieh Hsiung; Sun, Chi Kuang.

Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII. 2008. 68921C (Proceedings of SPIE - The International Society for Optical Engineering; 卷 6892).

研究成果: 書貢獻/報告類型會議貢獻

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. 於 Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII., 68921C, Proceedings of SPIE - The International Society for Optical Engineering, 卷 6892, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII, San Jose, CA, 美国, 08/1/20. https://doi.org/10.1117/12.760547
Liu TM, Lu JY, Kuo CC, Yang MJ, Lai CW, Chou PT 等. Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures. 於 Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII. 2008. 68921C. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.760547
Liu, Tzu Ming ; Lu, Ja Yu ; Kuo, Chung Chiu ; Yang, Meng Ju ; Lai, Chih Wei ; Chou, Pi Tai ; Chang, Ming Hao ; Liu, Hsiang Lin ; Li, Yu Tai ; Pan, Ci Ling ; Lin, Shih Hung ; Kuan, Chieh Hsiung ; Sun, Chi Kuang. / Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures. Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII. 2008. (Proceedings of SPIE - The International Society for Optical Engineering).
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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

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Y1 - 2008/4/21

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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