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Generation of 2.6 fs optical pulses using induced-phase modulation in a gas-filled hollow fiber
| Title: | Generation of 2.6 fs optical pulses using induced-phase modulation in a gas-filled hollow fiber |
| Authors: | Matsubara, Eiichi Browse this author | | Yamane, Keisaku Browse this author →KAKEN DB | | Sekikawa, Taro Browse this author →KAKEN DB | | Yamashita, Mikio Browse this author →KAKEN DB |
| Issue Date: | 1-Apr-2007 |
| Publisher: | Optical Society of America |
| Journal Title: | Journal of the Optical Society of America B : Optical Physics |
| Volume: | 24 |
| Issue: | 4 |
| Start Page: | 985 |
| End Page: | 989 |
| Publisher DOI: | 10.1364/JOSAB.24.000985 |
| Abstract: | We report quasi-one-optical-cycle pulse compression of the ultrabroadband white-light continuum generated using both induced-phase modulation (IPM) and self-phase modulation (SPM) in a 3.0 atom Ar-gas-filled hollow fiber. Fundamental and second harmonic waves of amplified 30 fs Ti:sapphire laser pulses were irradiated into a 37 cm hollow fiber with an inner diameter of 140μm. When the two pulses were temporally overlapped in the hollow fiber, the white-light continuum with the wavelength range of 350-1050 nm was generated. The spectral phase of the white-light continuum was measured by a modified spectral interferometry for direct electric-field reconstruction, and quasi-automatic feedback chirp compensation was carried out using a programmable liquid-crystal spatial light modulator placed on the Fourier plane of a 4-f system. As a result, 2.6 fs, 3.6μJ, 1.3 cycle transform-limited (TL) pulses with a peak power up to 1.4 GW at a 1 kHz repetition rate were generated in the visible to near-infrared region (the over-one-octave bandwidth of 450-975 nm). The fact that the IPM+SPM light was compressed to the TL duration is important toward the generation of a single, intense one-optical-cycle pulse in the visible region. |
| Rights: | © 2007 Optical Society of America |
| Type: | article |
| URI: | http://hdl.handle.net/2115/45351 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 山下 幹雄
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