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Proceedings Paper

Influence of geometry variations and defects on the near-field optical properties of pulsed compression gratings
Author(s): Jianpeng Wang; Andreas Erdmann; Shijie Liu; Jianda Shao; Yunxia Jin; Hongbo He; Kui Yi
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Paper Abstract

The internal electric field enhancement is critical for the laser induced damage properties of pulse compression gratings (PCG) in high-energy laser systems. Due to complex fabrication processes of PCG such as coating, interference lithography and etching, different kinds of defects, like nodular defects in multilayers and non-uniformities of the grating profiles on PCG surface, can't be practically avoided. From simulation results, we can know that some of these defects have little effect on the spectral response of optical elements, but they may produce huge changes of internal electric fields and thus decrease the damage threshold of PCG. To obtain a better understanding of the dependence of the internal electric field enhancement on these defects and their dimensions, this work is focused on the near field distributions of defective PCGs using rigorous electric magnetic field (EMF) solvers.

Paper Details

Date Published: 4 October 2011
PDF: 8 pages
Proc. SPIE 8171, Physical Optics, 81710O (4 October 2011); doi: 10.1117/12.897335
Show Author Affiliations
Jianpeng Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Andreas Erdmann, Fraunhofer Institute of Integrated Systems and Device Technology (Germany)
Shijie Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)
Yunxia Jin, Shanghai Institute of Optics and Fine Mechanics (China)
Hongbo He, Shanghai Institute of Optics and Fine Mechanics (China)
Kui Yi, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8171:
Physical Optics
Daniel G. Smith; Frank Wyrowski; Andreas Erdmann, Editor(s)

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