Abstract
Stable sub-10-fs pulses useful for many pump-probe experiments with center wavelength at 400 nm were obtained using a hollow-fiber compression technique with a beam-pointing stabilizing system. The output power stability was improved by around 2-times with the beam-pointing stabilizer. A 1-mm-thick cell sample of perylene dissolved in cyclohexane was used to test the pulse using for the pump-probe experiment. Even the high C-H stretching of vibration mode at around 2860 cm(-1), 2916 cm(-1), and 2955 cm(-1) were real-time resolved with vibrational phase information.
Highlights
Ultrafast time-resolved spectroscopy is a powerful technique for the investigation of electronic and vibrational dynamics in molecules, which are key elements in various fields in physics, chemistry, biology, and materials science research
A 1-mm-thick cell sample of perylene dissolved in cyclohexane was used to test the pulse using for the pump-probe experiment
Even the high C-H stretching of vibration mode at around 2860 cm−1, 2916 cm−1, and 2955 cm−1 were real-time resolved with vibrational phase information
Summary
Ultrafast time-resolved spectroscopy is a powerful technique for the investigation of electronic and vibrational dynamics in molecules, which are key elements in various fields in physics, chemistry, biology, and materials science research. It is because it can provide important information in photophysical and photochemical processes occurring in molecules [1,2]. The spatial mode and stability of the output pulse was usually not good due to several nonlinear processes Another method was using hollow fiber to compress the pulse duration in the spectral region from UV to infrared [13,14,15]. Highly stable sub-10 fs pulses at 400 nm are required for this kind of research
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