Abstract
We analyze the 1.5mum wavelength operation of a room temperature polarization switch based on electron spin dynamics in InGaAsP multiple quantum wells. An unexpected difference in response for left and right circularly polarized pump light in pump-probe measurements was discovered and determined to be caused by an excess carrier induced birefringence. Transient polarization rotation and ellipticity were measured as a function of time delay. (C) 2002 American Institute of Physics.
Original language | English |
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Pages (from-to) | 4090-4094 |
Number of pages | 5 |
Journal | Journal of Applied Physics |
Volume | 91 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Apr 2002 |
Keywords
- SPIN-RELAXATION
- ROOM-TEMPERATURE
- ELECTRON-SPIN
- COHERENCE
- ETALON