Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Ultrafast far-infrared GaAs/AlGaAs photon drag detector in microwave transmission line topology.

Ultraschneller Ferninfrarot GaAs/AlGaAs Photonenschlepp-Detektor in Mikrowellentransmission Linientopologie
 
: Sigg, H.; Kwakernaak, M.H.; Margotte, A.B.; Erni, D.; Son, P. van; Köhler, K.

:

Applied Physics Letters 67 (1995), Nr.19, S.2827-2829
ISSN: 0003-6951
ISSN: 1077-3118
Englisch
Zeitschriftenaufsatz
Fraunhofer IAF ()
III-V Halbleiter; III-V semiconductors; infrared detector; quantum wells

Abstract
A novel room temperature GaAs/AlGaAs multiquantum-well photon drag detector operating in the 10 mu m wavelength range and designed as a microstrip transmission line has been developed. Total-reflection angle incoupling, using a Ge prism, provides velocity matching between the optical and electrical pulses. Signal transients with 10 ps rise and fall time have been measured using 2 ps pulses from a free electron laser. From the wavelength dependence of the photon drag signal the room temperature momentum relaxation times in the first and second electron subband can be determined.

: http://publica.fraunhofer.de/dokumente/PX-37327.html