Ultra-broadband detection of coherent infrared pulses by sum-frequency generation spectroscopy in reflection geometry
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作者:
Kameyama, Risako
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Univ Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, JapanUniv Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Kameyama, Risako
[1
,2
]
Tanaka, Shunsuke
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Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, JapanUniv Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Tanaka, Shunsuke
[2
]
Murotani, Yuta
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Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, JapanUniv Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Murotani, Yuta
[2
]
Matsuda, Takuya
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Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, JapanUniv Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Matsuda, Takuya
[2
]
Kanda, Natsuki
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Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, JapanUniv Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Kanda, Natsuki
[2
]
Matsunaga, Ryusuke
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Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, JapanUniv Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Matsunaga, Ryusuke
[2
]
Yoshinobu, Jun
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Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, JapanUniv Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
Yoshinobu, Jun
[2
]
机构:
[1] Univ Tokyo, Dept Chem Syst Engn, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138654, Japan
[2] Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, Japan
We have newly developed, to the best of our knowledge, a detection method for broadband infrared pulses based on sum-frequency generation spectroscopy in reflection geometry, which can avoid a restriction of the detection bandwidth originating from the phase mismatch that is inevitable for the upconversion in transmission geometry. Using a GaAs crystal, we successfully demonstrated the ultra-broadband detection of the infrared pulses generated from a two-color laser-induced air plasma filament in a region from 300 to 3300 cm-1. With the advantage of ultra-short infrared pulses, the present detection method holds promise for application to time-resolved, ultra-broadband vibrational and similar technologies, are reserved.