The frontiers of optical-field wavepacket photonics in the 10^<-15>-second region

主要研究了单光到少光周场(~10~(-1)~(-1)；~(15)~(-1)~gT；-S(1-f)光脉冲)，如下：(1)通过自相位调制产生2.8ps、1.5周期的隔离脉冲(2)通过感应相位调制产生2.6fs、1.3周期、1.4GW的隔离脉冲(3)产生载波包络相位稳定的3.3fs、1.7周期的隔离脉冲。它们是可见光到近红外(NIR)区域最短的孤立脉冲(4)第一次构建了具有超倍频程带宽的计算机控制的自识别型光谱相位操纵器及其使用小波变换方法的自动控制(5)第一次开发了工作在UV-NIR光谱区域的新型液晶空间光调制器以产生更短的光脉冲

We mainly studied the generation, measurement and control of mono-to few-optical-cycle fields (〜10-^<15>-s(1-fs) optical pulses), as follows:(1) the generation of 2.8 fs, 1.5-cycle isolated pulses by self-phase modulation(2) the generation of 2.6 fs, 1.3-cycle, 1.4 GW isolated pulses by induced phase modulation(3) the generation of carrier-envelop phase stabilized 3.3 fs, 1.7-cycle isolated pulsesTo the best of our knowledge, those are the shortest isolated pulse in the visible to near-infrared (NIR) region(4) the first construction of the self-recognition type of the computer-controlled spectral-phase manipulator having an over-octave bandwidth and its automatic control using a wavelet transform method(5) the first development of a new liquid-crystal spatial light modulator operating in the UV-to-NIR spectral region for the shorter optical-pulse generation