Fourier-transform-limited laser pulses tunable in wavelength and in duration (400-2000 ps)

Abstract

Abstract-A combined system of an injection-seeded pulsed dye amplifier and a pulse compressor based on stimulated Brillouin scattering (SBS) is investigated. It allows for the generation of powerful pulses both tunable in wavelength and in duration. Online tuning of the pulse duration is possible due to the dependence of SBS compression on input energy. A range of 400-2000 ps at up to 100 mJ output energy is demonstrated. The output pulses are temporally and spectrally resolved to investigate the properties of this system. Coherent nearly Fourier-transform-limited pulses of variable pulse duration in the extreme ultraviolet (UV) are produced employing harmonic conversion. As an application of such pulses a single rotational line of H2 at 98-nm wavelength is excited, demonstrating that the system may be used for laserspectroscopic studies to simultaneously gain spectral as well as dynamical information.Index Terms-Brillouin scattering, dye lasers, optical pulse compression, optical pulses, pulse compression methods, pulsed lasers.

Transition probabilities and lifetimes in neutral and singly ionized osmium and the Solar osmium abundance

“…1) with an 8-ns pulse duration, a single pulse energy of 400 mJ and a repetition rate of 10 Hz, was first sent into a stimulated Brillouin scattering (SBS) cell to compress the pulse duration (Schiemann et al 1998;Xu et al 2004). The pulse duration of the output from the SBS temporal compressor could be shortened to about 1 ns.…”

Lifetime measurements in neutral and singly ionized vanadium

“…The pulses were first passed through a SBS system, similar to the one described by Schiemann et al 16,17 The methods of laser-pulse compression by SBS in water can result in a pulse output with about 1 ns duration and about 150 mJ single-pulse energy. For obtaining a tunable excitation source, a dye laser (Continuum Nd-60) was employed and pumped by the temporarily compressed laser pulses.…”

Experimental and theoretical radiative properties of odd-parity highly excited levels in Mo II

“…The setup of the pulse compressor is illustrated in Figure 1. A detailed description of this technique has been presented by Schiemann et al [12]. The compressed pulses were conducted into a dye laser (Sirah Cobra-Stretch) with a 0.08 cm −1 linewidth operated with a DCM dye.…”