Bahk Seung-Whan, Bromage Jake, Begishev Ildar A, Mileham Chad, Stoeckl Christian, Storm Michael, Zuegel Jonathan D
Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299, USA.
Appl Opt. 2008 Sep 1;47(25):4589-97. doi: 10.1364/ao.47.004589.
We present an on-shot focal-spot characterization technique based on a phase-retrieval scheme that retrieves near-field phase from multiplane focal-spot measurements in an experimental target chamber. The technique is easy to implement inside a target chamber and is demonstrated in a multiterawatt laser system. It is also found that phase retrieval can quantitatively detect residual angular dispersion coming from the pulse compressor misalignment.
我们提出了一种基于相位恢复方案的单次焦斑表征技术，该方案可从实验靶室内的多平面焦斑测量中恢复近场相位。该技术易于在靶室内实施，并在多太瓦激光系统中得到了验证。我们还发现，相位恢复能够定量检测来自脉冲压缩器失准的残余角色散。
