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

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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