Differential transmission measurements on low-temperature-grown GaAs transmission lines with spatially separated pump and probe beams

Author

Tautz, Soenke ; Krause, Markus ; Dankowski, S.U. ; Kiesel, P. ; Seichter, Hartmut ; Keil, U.D. ; Dohler, Gottfried H.

Author_Institution

Inst. fur Tech. Phys., Erlangen-Nurnberg Univ., Germany

fYear

1998

fDate

3-8 May 1998

Firstpage

266

Lastpage

267

Abstract

Summary form only given. We report on differential transmission measurements in the presence of an electric in low temperature (LT) GaAs. The fields are applied via transmission line contacts. If pump and probe beams are focused on the same spot between the metal stripes, two different effects contribute to the differential transmission spectra (DTS); whereas the absorption of the probe beam is always decreased due to state filling caused by the intense pump beam, electroabsorption changes due to alteration of the internal field (Franz-Keldysh effect) can be positive or negative depending on the wavelength.

Keywords

III-V semiconductors; electro-optical effects; electroabsorption; gallium arsenide; optical pumping; transmission lines; Franz-Keldysh effect; GaAs; GaAs transmission lines; differential transmission measurements; differential transmission spectra; electroabsorption changes; internal field; low-temperature-grown; metal stripes; probe beam absorption; probe beams; spatially separated pump beams; transmission line contacts; Atomic measurements; Delay effects; Excitons; Gallium arsenide; Power measurement; Power transmission lines; Pulse measurements; Quantum dots; Temperature; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-339-0

Type

conf

DOI

10.1109/CLEO.1998.676148

Filename

676148