Miaochan Zhi and Alexei V Sokolov 2008 New J. Phys. 10 025032 doi:10.1088/1367-2630/10/2/025032
Broadband generation in a Raman crystal driven by a pair of time-delayed linearly chirped pulses
Focus on Attosecond PhysicsMiaochan Zhi1 and Alexei V Sokolov
Show affiliationsPart of Focus on Attosecond Physics
A pair of time-delayed linearly chirped pulses with sub-picosecond duration is used to selectively excite Raman transitions in a lead tungstate crystal. Significant molecular coherence leads to generation of up to 40 anti-Stokes and 5 Stokes sidebands. High conversion efficiency (from the two pump beams to the sidebands) is measured. The broadband generation with chirped pulses whose duration is comparable to the Raman coherence lifetime is considerably more efficient, when compared to the case of excitation by two-color femtosecond pulses. In the future, mutual coherence among the generated sidebands may allow ultrashort pulse synthesis.
- PACS
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42.55.Rz Doped-insulator lasers and other solid state lasers
42.60.Fc Modulation, tuning, and mode locking
42.60.Jf Beam characteristics: profile, intensity, and power; spatial pattern formation
42.65.Re Ultrafast processes; optical pulse generation and pulse compression
- Subjects
- Dates
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Issue 2 (February 2008)
Received 19 October 2007
Published 29 February 2008
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Broadband generation in a Raman crystal driven by a pair of time-delayed linearly chirped pulses
Miaochan Zhi and Alexei V Sokolov 2008 New J. Phys. 10 025032
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