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Message ID: 237     Entry time: Wed Apr 20 10:09:50 2022 Author: Rodolfo  Category: Laser  Subject: Optic with spots

The average energy produced by the laser along the beamtime was about 10 mJ/puls. After about two weeks of beamtime some of the optics, especially the optic placed just after the BBO crystall, got some spots, see pictures below. Here the diameter of the laser beam is about 6 mm.

Attachment 1: SHG_Compensator_mitFleck_19-04-2022.jpg  96 kB  Uploaded Wed Apr 20 11:13:37 2022  | Hide | Hide all

Attachment 2: UV_Umlenkspiegel_mitFleck_19-04-2022.jpg  103 kB  Uploaded Wed Apr 20 11:14:05 2022  | Hide | Hide all

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