A THz quantum cascade detector in a strong perpendicular magnetic field

Scalari, Giacomo; Graf, Marcel; Hofstetter, Daniel; Faist, Jérôme; Beere, Harvey; Ritchie, David

doi:10.1088/0268-1242/21/12/042

A THz quantum cascade detector in a strong perpendicular magnetic field

Author(s)

Scalari, Giacomo

Graf, Marcel

Hofstetter, Daniel

Laboratoire temps-fréquence

Faist, Jérôme

Beere, Harvey

Ritchie, David

Date issued

2006

In

Semiconductor Science and Technology

Vol

12

No

21

From page

1743

To page

1746

Subjects

WELL INFRARED PHOTODETECTOR INTERSUBBAND TRANSITIONS MU-M LASERS LAMBDA-SIMILAR-OR-EQUAL-TO-87

Abstract

A 3.6 THz quantum cascade detector is studied under the influence of a strong magnetic field applied perpendicularly to the plane of the layers. Modulation of lifetimes based on elastic intersubband scattering processes is observed, leading to an increase of the responsivity for particular values of the applied magnetic field.