Physics – Condensed Matter – Materials Science
Scientific paper
2005-09-19
Physics
Condensed Matter
Materials Science
16 pages, 4 figures, 1 supplemental figure
Scientific paper
Semiconductor microcavities offer unique means of controlling light-matter interactions, which have led to the development of a wide range of applications in optical communications and inspired proposals for quantum information processing and computational schemes. Studies of spin dynamics in microcavities - a new and promising research field - have revealed novel effects such as polarization beats, stimulated spin scattering, and giant Faraday rotation. Here, we study the electron spin dynamics in optically-pumped GaAs microdisk lasers with quantum wells (QWs) and interface-fluctuation quantum dots (QDs) in the active region. In particular, we address the question of how the electron spin dynamics are modified by the stimulated emission in the disks, and observe an enhancement of the spin lifetime when the optical excitation is in resonance with a high quality (Q ~ 5000) lasing mode. This resonant enhancement, contrary to what is expected from the Purcell effect observed in the cavities, is then manipulated by altering the cavity design and dimensions.
Awschalom David D.
Ghosh Sabyasachi
Gossard Arthur. C.
Li Xiaoliang
Mendoza F. M.
No associations
LandOfFree
Enhancement of Spin Coherence using Q-factor Engineering in Semiconductor Microdisk Lasers 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 Enhancement of Spin Coherence using Q-factor Engineering in Semiconductor Microdisk Lasers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhancement of Spin Coherence using Q-factor Engineering in Semiconductor Microdisk Lasers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-299085