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

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publicationUltrafast Phenomena in Semiconductors and Nanostructure Materials XII
DOIs
Publication statusPublished - 2008 Apr 21
EventUltrafast Phenomena in Semiconductors and Nanostructure Materials XII - San Jose, CA, United States
Duration: 2008 Jan 202008 Jan 23

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6892
ISSN (Print)0277-786X

Conference

ConferenceUltrafast Phenomena in Semiconductors and Nanostructure Materials XII
CountryUnited States
CitySan Jose, CA
Period08/1/2008/1/23

Fingerprint

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

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

Cite this

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. In Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII [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; 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; Vol. 6892).

Research output: Chapter in Book/Report/Conference proceedingConference 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, 08/1/20. https://doi.org/10.1117/12.760547
Liu TM, Lu JY, Kuo CC, Yang MJ, Lai CW, Chou PT et al. Resonant-enhanced dipolar interaction between THz-photons and confined acoustic phonons in nanostructures. In 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).
@inproceedings{cf56330169944b2e84e87a520a8caf35,
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",
month = "4",
day = "21",
doi = "10.1117/12.760547",
language = "English",
isbn = "9780819470676",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII",

}

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 - 2008/4/21

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

UR - http://www.scopus.com/inward/record.url?scp=42149141160&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42149141160&partnerID=8YFLogxK

U2 - 10.1117/12.760547

DO - 10.1117/12.760547

M3 - Conference contribution

AN - SCOPUS:42149141160

SN - 9780819470676

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

BT - Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII

ER -