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| Phase evolution of the reemitted field in the semiconductor quantum wells under the femtosecond pulse train intersubband excitation | |
| 作者姓名： | 罗建 龚尚庆 钮月萍 宋晓虹 钱军 李儒新 |
| 作者单位： | State Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai 201800，Shanghai 201800，Shanghai 201800，Shanghai 201800，Shanghai 201800 |
| 基金项目： | This work is supported by the National Natural Sciences Foundation of China (No. 60478002)，the Key Basic Research Foundation of Shanghai (No. 04JC14036 and 05DJ14003). |
| 摘 要： | Property of the phase of the reemitted field in the semiconductor quantum wells (QWs) excited by femtosecond pulse train is investigated. It is shown that the phase evolution of the reemitted field is controlled by the relative phase between the successive pulses of the incident train. For all the odd pulses excitation, the reemitted field is from out-of-phase to in-phase, then again to out-of-phase with the incident pulses, whereas for all the even pulses excitation, the situation is the opposite, i.e., it is from in-phase to out-of-phase, then again to in-phase with the incident pulses. |
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