Title :
Coherent control of acoustic phonon oscillations in InGaN/GaN multiple-quantum-wells
Author :
Chi-Kuang Sun ; Jian-Chin Liang ; Xiang-Yang Yu ; Stanton, C.J. ; Abare, A. ; DenBaars, S.P.
Author_Institution :
Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Summary form only given. Progress in femtosecond lasers and ultrafast spectroscopy technology has enabled us to generate and directly observe the coherent oscillations of phonon modes. We demonstrate the coherent control of the initiated coherent acoustic phonon oscillation using a separate control UV pulse. The experiments were performed at room temperature on 14 periods InGaN-GaN MQWs.
Keywords :
III-V semiconductors; gallium compounds; high-speed optical techniques; indium compounds; light coherence; phonons; semiconductor quantum wells; InGaN-GaN; InGaN-GaN MQW; InGaN/GaN multiple-quantum-wells; acoustic phonon oscillations; coherent control; coherent oscillations; femtosecond lasers; initiated coherent acoustic phonon oscillation; phonon modes; room temperature; separate control UV pulse; ultrafast spectroscopy technology; Gallium nitride; Phonons; Quantum well devices;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.906968
