Abstract
A novel angular spectrum method was proposed to numerically analyze off-axis free-space light propagation on a translated plane to an arbitrary angle. Utilizing a shifted angular spectrum method based on an oblique incident plane wave assumption, a generalized light propagation formulation was obtained in a wide range of both tilt angles and sampling intervals, which overcame the limitations of prior attempts. A detailed comparison of the proposed angular spectrum method with prior methods is numerically presented for diffractive optics and computer-generated holograms. The validity of the proposed method was confirmed experimentally by reconstructing a digital holographic image using a spatial light modulator.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Kyoji Matsushima, Hagen Schimmel, and Frank Wyrowski
J. Opt. Soc. Am. A 20(9) 1755-1762 (2003)
Seung Jun Jeong and Chung Ki Hong
Appl. Opt. 47(16) 3064-3071 (2008)
Wenhui Zhang, Hao Zhang, Kyoji Matsushima, and Guofan Jin
Opt. Express 29(7) 10089-10103 (2021)