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Deep-ultraviolet picosecond flat-top pulses by chirp-matched sum frequency generation
(2012)
Picosecond, flat-top, deep-UV pulses are needed to generate high-brightness electron beams to efficiently drive x-ray free electron lasers. Current metal photocathodes have low efficiency and therefore require high-energy ...
Generation of 1.5-octave intense infrared pulses by nonlinear interactions in DAST crystal
(2015)
Infrared pulses with large spectral width extending from 1.2 to 3.4 μm are generated in the organic crystal DAST (4-N, N-dimethylamino-4'-N'-methylstilbazolium tosylate). The input pulse has a central wavelength of 1.5 μm ...
Chirped pulses sum frequency generation for deep-UV picosecond pulse shaping
(2012)
We show by experiments and simulations that properly chirped laser pulses enable efficient and broadband sum frequency generation in nonlinear crystals. We achieved high energy, picosecond deep-UV pulses with spectral ...