Ultrafast pulse shaping: amplification and characterization

Abstract

We demonstrate high-resolution amplified pulse shaping using an acousto-optic modulator (AOM) at a center-wavelength of 795nm. The output pulses have energy of 200mJ/pulse and a transform-limited pulsewidth of 150fs. A spectral modulation of over 40 features is achieved in a single pulse. We characterize the pulses using the STRUT (Spectrally and Temporally Resolved Upconversion Technique). Using predistortion techniques, we demonstrate that the pulses can be shaped in amplitude and phase. We create a complex pulse shape with hyperbolic secant amplitude and hyperbolic tangent frequency sweep, which is useful for applications in adiabatic rapid passage experiments.

Residue-specific structural kinetics of proteins through the union of isotope labeling, mid-IR pulse shaping, and coherent 2D IR spectroscopy

“…Further details on the mid-IR pulse shaper [20] and AOM pulse shaping [26] are given elsewhere. We recently demonstrated a modified mid-IR pulse shaper which was additionally capable of polarization shaping [27].…”

Propagation of complex shaped ultrafast pulses in highly optically dense samples

“…46,22 For the experiments presented here, we created the complex hyperbolic secant pulses given by Eq. Thus, when we focused our laser to a spot size of 5 mm, we achieved intensities of I = 1.…”

Evolutionary algorithms and their application to optimal control studies

“…Programmable pulse shaping based on the use of an acousto-optic modulator has been developed by Warren and co-workers [88][89][90][91]. The apparatus is depicted in Fig.…”