Collection Of theses on high power laser and plasma physics, 2010, 10 (1): 2206, Published Online: Jun. 2, 2017  

Object–image-grating self-tiling to achieve and maintain stable, near-ideal tiled grating conditions

Author Affiliations
1 Shanghai Institute of Laser and Plasma, 197 Chengzhong Road, Jiading, Shanghai 201800, China
2 Shanghai Institute of Optics and Fine Mechanics, 390 Qinghe Road, Jiading, Shanghai 201800, China
Abstract
We propose and demonstrate an object–image-grating self-tiling method for doubling the effective aperture of a grating by tiling it with its image to form an object–image-grating pair. With the aid of the object–image relation, the line-density variation, angular tip, and longitudinal piston errors within a tiled grating no longer exist. The method helps achieve and maintain a near-ideal tiled grating by using a simple far-field method. Because one tiled grating requires only one beam line, a single probe laser can be used for first-installation adjustments and long-term maintenance monitoring, with no wavelength or incident angle limitations.

Zhaoyang Li, Guang Xu, Tao Wang, Yaping Dai. Object–image-grating self-tiling to achieve and maintain stable, near-ideal tiled grating conditions[J]. Collection Of theses on high power laser and plasma physics, 2010, 10(1): 2206.

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