Physics – Quantum Physics
Scientific paper
2009-11-17
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.
Huang Pei-Hao
Ju Wen-Ming
Wang Huan
Zhu Ka-di
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