Coherent hybrid modes in the THz emission from InAs and InSb

Author

Hasselbeck, M.P. ; Stalnaker, D. ; Schlie, L.A.

Author_Institution

USAF Res. Labs., Kirtland AFB, NM, USA

fYear

2001

fDate

11-11 May 2001

Firstpage

202

Abstract

Summary form only given. When confined to a dimension much smaller than their characteristic wavelength, coupled longitudinal modes of polar semiconductors can radiate. We impulsively excite coherent, collective modes of bulk InAs and InSb using 30 fs near-infrared laser pulses and detect the emitted THz frequency radiation by using a bolometer and the broadband interferometric technique of Kersting et al (Phys. Rev. Lett., vol. 79, p. 3038, 1997). All our results are insensitive to excitation power and crystal orientation.

Keywords

III-V semiconductors; bolometers; coherence; electromagnetic wave interferometry; indium compounds; microwave photonics; optical pumping; phonon-plasmon interactions; polar semiconductors; semiconductor plasma; submillimetre wave generation; 30 fs; InAs; InSb; THz emission; bolometer; broadband interferometric technique; bulk InAs; bulk InSb; characteristic wavelength; coherent collective mode excitation; coherent hybrid modes; confined coupled longitudinal modes; coupled plasmon-phonon system; crystal orientation; emitted THz frequency radiation; excitation power; near-infrared laser pulses; polar semiconductors; Delay; Fourier transforms; Frequency; Laser excitation; Laser modes; Phonons; Plasma density; Plasma measurements; Plasma temperature; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2001. QELS '01. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-663-X

Type

conf

DOI

10.1109/QELS.2001.962067

Filename

962067