Interaction of intense narrowband THz pulses with coherent excitons in semiconductor QWs

Author

Lee, Yun-Shik ; Jameson, A.D. ; Tomaino, J.L. ; Steiner, J.T. ; Kira, M. ; Koch, S.W. ; Prineas, J.P.

Author_Institution

Dept. of Phys., Oregon State Univ., Corvallis, OR, USA

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

Abstract

We investigate the coherent dynamics of excitonic wavepackets in semiconductors driven by intense narrowband THz pulses. Time-resolved THz-pump and optical-probe measurements demonstrate strong nonlinear-optical transients of the light-hole and heavy-hole excitonic resonances in GaAs/AlGaAs QWs.

Keywords

III-V semiconductors; aluminium compounds; excitons; gallium arsenide; nonlinear optics; quantum wells; AlGaAs; GaAs; coherent excitons; excitonic wavepacket; heavy hole excitonic resonance; light-hole excitonic resonance; narrowband terahertz pulse; nonlinear optical transients; optical probe measurements; semiconductor quantum well; time-resolved terahertz pump measurements; Delay effects; Excitons; Gallium arsenide; Narrowband; Nonlinear optics; Optical pulses; Optical pumping; Pulse measurements; Resonance; Ultrafast optics; (190.5970) Semiconductor nonlinear optics including MQW; (320.7110) Ultrafast nonlinear optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Conference_Location

Baltimore, MD

Print_ISBN

978-1-55752-869-8

Electronic_ISBN

978-1-55752-869-8

Type

conf

Filename

5225652