Spatial light modulation based on coherent population oscillation in semiconductor quantum dots

Details Spatial light modulation based on coherent population oscillation in semiconductor quantum dots Spatial light modulation based on coherent population oscillation in semiconductor quantum dots

2009-11-17

arxiv.org/abs/0911.3265v1

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

Due to coherent population oscillation (CPO) effect, we theoretically examine the generation and manipulation of Laguerre-Gaussian beams in terms of phase and amplitude modulation respectively in semiconductor quantum dots (SQDs). The results indicate that both phase modulation with low absorption of probe field and amplitude modulation with high efficiency can be achieved. Thus the practical way demonstrates that the SQDs system can function as effective optically addressed spatial light modulator with which the transverse spatial properties of probe fields can be artificially modulated.

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