We propose a method for designing an improved phase-only Talbot array illuminator, called a phase contrast Talbot array illuminator (PCTAI), which could be used to generate an array of spots with a special intensity structure and high efficiency. As examples, we designed two types of PCTAIs for generating an array of line and hollow spots, respectively. Some experimental results revealing the phase contrast effect and demonstrating the feasibility of the PCTAIs are also given.
© 2008 Optical Society of America
Fourier Optics and Signal Processing
Original Manuscript: January 18, 2008
Revised Manuscript: March 5, 2008
Manuscript Accepted: March 7, 2008
Published: April 11, 2008
Cheng-Shan Guo, Ling Li, Lin-Wei Zhu, Gong-Xiang Wei, Jianping Ding, and Hui-Tian Wang, "Phase contrast Talbot array illuminators," Opt. Lett. 33, 818-820 (2008)