Generation of intense 11-fs ultraviolet pulses using phase modulation by two types of coherent molecular motions.
The use of two types of phase modulations arising from the coherent rotations of ortho-hydrogen and para-hydrogen to generate an intense ultrashort ultraviolet pulse without substantial generation of sub-pulses was demonstrated. This technique allows use of a high-energy long-probe pulse in the pump-probe regime for generating a high-energy compressed pulse. A 100-fs ultraviolet pulse was compressed to 11-fs by the phase modulation followed by dispersion compensation with chirped mirrors.
Kida
Yuichiro
Y
Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka , Japan. y-kida@cstf.kyushu-u.ac.jp
Zaitsu
Shin-ichi
S
Imasaka
Totaro
T
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008962:Models, Theoretical; D009038:Motion; D055095:Optics and Photonics / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*; D014466:Ultraviolet Rays