We have developed a new method to analyze the amount and distribution of diffraction light for a diffraction grating lens. We have found that diffraction light includes each-order diffraction light and striped diffraction light. In this paper, we describe characteristics of striped diffraction light and suggest a way to analyze diffraction light. Our analysis method, which considers the structure of diffraction grating steps, can simulate the aberrations of an optical system, each-order diffraction light, and striped diffraction light simultaneously with high accuracy. A comparison between the simulation and experimental results is presented, and we also show how our analysis method can be used to optimize a diffraction grating lens with low flare light.
© 2014 Optical Society of America
Diffraction and Gratings
Original Manuscript: January 14, 2014
Revised Manuscript: March 8, 2014
Manuscript Accepted: March 12, 2014
Published: April 10, 2014
Takamasa Ando, Tsuguhiro Korenaga, Masa-aki Suzuki, and Jun Tanida, "Diffraction light analysis method for a diffraction grating imaging lens," Appl. Opt. 53, 2532-2538 (2014)