2007 Fiscal Year Final Research Report Summary
The frontiers of optical-field wavepacket photonics in the 10^<-15>-second region
| Project/Area Number |
16206006
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
YAMASHITA Mikio Hokkaido University, Grad.School of Eng., Professor (10240631)
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| Co-Investigator(Kenkyū-buntansha) |
MORITA Ryuji Hokkaido University, Grad.School of Eng., Professor (30222350)
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| Project Period (FY) |
2004 – 2007
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| Keywords | monocycle light / feedback control of optical field / chirp compensation of octave light / nonlinear propagation of optical-field wavepacket / optical pulse compression / ultraviolet liquid-crystal spatial light modulator |
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| Research Abstract |
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 pulses
To 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
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