Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2008-09-16
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
10.1103/PhysRevB.78.205435
The resonant circular photogalvanic effect is observed in wurtzite (0001)-oriented GaN low-dimensional structures excited by infrared radiation. The current is induced by angular momentum transfer of photons to the photoexcited electrons at resonant inter-subband optical transitions in a GaN/AlGaN heterojunction. The signal reverses upon the reversal of the radiation helicity or, at fixed helicity, when the propagation direction of the photons is reversed. Making use of the tunability of the free-electron laser FELIX we demonstrate that the current direction changes by sweeping the photon energy through the intersubband resonance condition, in agreement with theoretical considerations.
Danilov Sergey N.
der Meer F. G. van A.
Ganichev Sergey D.
Golub L. E.
Karch Johannes
No associations
LandOfFree
Resonant circular photogalvanic effect in GaN/AlGaN heterojunctions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Resonant circular photogalvanic effect in GaN/AlGaN heterojunctions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant circular photogalvanic effect in GaN/AlGaN heterojunctions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-570907