Coherence and nonlinearity of femtosecond secondary emission from excitons in GaAs quantum wells

Author

Woerner, Michael ; Shah, J.

Author_Institution

Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA

fYear

1998

fDate

8-8 May 1998

Firstpage

13

Lastpage

14

Abstract

Summary form only given.We have investigated the nature and dynamics of resonant secondary emission from quantum wells, a subject of considerable current interest, using a novel approach in which the sample is resonantly excited by a pair of phase-locked pulses, and the emission is detected by femtosecond upconversion. This technique allows us to probe the dynamics of photoexcited polarization from a distinct perspective and gives new insights in the femtosecond dynamics of secondary emission (SE) and its coherence properties simultaneously.

Keywords

excitons; gallium arsenide; high-speed optical techniques; light polarisation; resonant states; secondary electron emission; semiconductor quantum wells; GaAs; GaAs quantum wells; coherence properties; excitons; femtosecond dynamics; femtosecond secondary emission; femtosecond upconversion; light coherence; nonlinearity; phase-locked pulses; photoexcited polarizatio; resonant secondary emission; resonantly excited; secondary emission; Equations; Excitons; Frequency; Gallium arsenide; Optical pulses; Optimized production technology; Probes; Resonance; Space vector pulse width modulation; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-541-2

Type

conf

DOI

10.1109/IQEC.1998.680014

Filename

680014