Femtosecond excitonic optoelectronics

Author

Knox, Wayne H. ; Henry, Jill E. ; Goossen, Keith W. ; Li, Kathryn D. ; Tell, Benjamin ; Miller, David A B ; Chemla ; Gossard, Arthur C. ; English, J. ; Schmitt-Rink, S.

Author_Institution

AT&T Bell Lab., Holmdel, NJ, USA

Volume

25

Issue

12

fYear

1989

fDate

12/1/1989 12:00:00 AM

Firstpage

2586

Lastpage

2595

Abstract

The authors discuss a novel approach to femtosecond optoelectronics which uses the excitonic response to electric fields as a detector and the excitonic nonlinear response to optical fields as a generator. The sensitivity of the quantum-well exciton to applied electric fields is used to measure electrical transients with femtosecond time resolution. The authors examine several mechanisms for femtosecond electrical pulse generation, including exciton ionization and two-photon absorption, and present measurements of the propagation properties of coplanar striplines on ultrathin semiconductor substrates in the 1-100-THz frequency range. The generation and detection of an electrical pulse with a 180-fs risetime propagating on a coplanar stripline on GaAs/AlGaAs quantum wells are demonstrated

Keywords

III-V semiconductors; aluminium compounds; electric field measurement; electroabsorption; excitons; gallium arsenide; high-speed optical techniques; semiconductor quantum wells; substrates; transients; two-photon processes; 1 to 100 THz; 180 fs; GaAs-AlGaAs; applied electric fields; coplanar striplines; electrical pulse risetime; electrical transients; electroabsorption; exciton ionization; excitonic nonlinear response; excitonic optoelectronics; excitonic response; excitonic response detectors; femtosecond electrical pulse generation; femtosecond optoelectronics; femtosecond time resolution; nonlinear excitonic response generator; optical fields; quantum wells; quantum-well exciton; two-photon absorption; ultrathin semiconductor substrates; Electric variables measurement; Excitons; Nonlinear optics; Optical pulse generation; Optical sensors; Pulse generation; Quantum wells; Stripline; Time measurement; Ultrafast optics;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.40646

Filename

40646