5 October 2011 Influence of geometry variations and defects on the near-field optical properties of pulsed compression gratings
Author Affiliations +
Proceedings Volume 8171, Physical Optics; 81710O (2011); doi: 10.1117/12.897335
Event: SPIE Optical Systems Design, 2011, Marseille, France
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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jianpeng Wang, Andreas Erdmann, Shijie Liu, Jianda Shao, Yunxia Jin, Hongbo He, Kui Yi, "Influence of geometry variations and defects on the near-field optical properties of pulsed compression gratings", Proc. SPIE 8171, Physical Optics, 81710O (5 October 2011); doi: 10.1117/12.897335; https://doi.org/10.1117/12.897335
PROCEEDINGS
8 PAGES


SHARE
KEYWORDS
Diffraction gratings

Near field

Dielectrics

Diffraction

3D modeling

Laser induced damage

Optical properties

Back to Top