On-shot focal-spot characterization technique using phase retrieval.
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.
Bahk
Seung-Whan
SW
Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299, USA. sbah@lle.rochester.edu
Bromage
Jake
J
Begishev
Ildar A
IA
Mileham
Chad
C
Stoeckl
Christian
C
Storm
Michael
M
Zuegel
Jonathan D
JD