title: Two-dimensional single-shot measurement of angular dispersion for compressor alignment.
abstract: Misalignment of the stretcher-compressor stages of chirped pulse amplification (CPA) lasers can aggravate the spatiotemporal shape of ultrashort pulses. We demonstrate a simple technique for angular dispersion measurement, which offers real-time single-shot two-dimensional characterization across the entire beam profile. The accuracy of our pilot experiment approaches its current theoretical limit of 0.1 μrad/nm. Unlike the current one-dimensional techniques working in the near field, the method works in the far field; hence, it is especially appropriate for assisting the most accurate alignment of a CPA laser compressor ensuring the maximum intensity on the target.
authors: Department of Optics and Quantum Electronics, University of Szeged, P.O. Box 406, Szeged H-6701, Hungary. badam@physx.u‑szeged.hu
authors: A
authors: A
authors: Börzsönyi
authors: L
authors: L
authors: Mangin-Thro
authors: G
authors: G
authors: Cheriaux
authors: K
authors: K
authors: Osvay