Paper
16 May 2013 High power excimer laser image relay system analysis using Delano diagram
Yongshen Zhang, Jun Zhao, Xueqing Zhao, Yun Hu, Dahui Wang, Quanxi Xue, Jingru Liu
Author Affiliations +
Proceedings Volume 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012); 879622 (2013) https://doi.org/10.1117/12.2011152
Event: 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 2012, Xi'an, Shaanxi, China
Abstract
The characteristics of Delano diagram are especially helpful in instrumental systems type with considerably separated components. For high power excimer laser system, especially for image relay scheme, the Delano diagram method is highly advantageous for the system’s thin lens layout design. A primitive experimental image relay and it’s combination optical layout is investigated in our high power XeCl laser system, with intensity smoothed spatial incoherent source. Instead of the uniform intensity distribution on the target as expected, it is obvious shows in the final image on the target that a gauss like intensity profile and a large amount of astigmatism results. There are two possible reasons: the first one is that not keeping proper relay of pupil plane (or Fourier plane) in the final stage, simply care the collimated beam of virtual object in the final focusing stage. With the help of Delano diagram, it’s clearly shown in the diagram that the Fourier plane and the image plane come very close, indicates that a complete image relay of the object plane and Fourier plane is needed. The second reason is due to the off-axis setup in the large aperture main amplifier, which introduce significant astigmatism aberrations in the final optical path. This question can be solved using proper tilt and de-center of reflective mirror pair setup, and two possible such combination pairs are proposed.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yongshen Zhang, Jun Zhao, Xueqing Zhao, Yun Hu, Dahui Wang, Quanxi Xue, and Jingru Liu "High power excimer laser image relay system analysis using Delano diagram", Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 879622 (16 May 2013); https://doi.org/10.1117/12.2011152
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KEYWORDS
Relays

Optical amplifiers

Laser systems engineering

Excimer lasers

High power lasers

Monochromatic aberrations

Image analysis

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