Synthetic dark-field imaging for optic damage detection

Rajan Mistry; Robert Heathcote

doi:10.1117/12.3032288

17 December 2024 Synthetic dark-field imaging for optic damage detection

Rajan Mistry, Robert Heathcote

Author Affiliations +

Proceedings Volume 13190, Laser-Induced Damage in Optical Materials 2024; 131900B (2024) https://doi.org/10.1117/12.3032288
Event: SPIE Laser Damage, 2024, San Ramon, CA, United States

Abstract

We present a novel damage detection method for use in high-repetition rate, high pulse energy laser systems. Synthetic dark field imaging involves numerical beam propagation and high-pass spatial filtering of the laser beam profile to simultaneously detect damage and identify the optic responsible within the optical chain. This technique utilises the main beam path and has the capability to monitor damage in situ, across numerous optics with a single image of the beam profile. Synthetic dark field imaging will be trialled in the new 10 Hz repetition rate, 1 PW laser driver currently being commissioned at the Extreme Photonics Applications Centre (EPAC) at the Rutherford Appleton Laboratory, UK.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Rajan Mistry and Robert Heathcote "Synthetic dark-field imaging for optic damage detection", Proc. SPIE 13190, Laser-Induced Damage in Optical Materials 2024, 131900B (17 December 2024); https://doi.org/10.1117/12.3032288

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