Analysis on the lateral resolution of optical scanning holography system based on random phase encoding using restricted pupils

作者：Wang, Yun; Hu, Jian-Ping; Yuan, Sheng; Xie, Jian; Guo, Xue-Fan; Zhang, Luo-Zhi; Wan, Dao-Ming; Hu, You-Jun; Zhou, Xin^*

来源：Journal of Modern Optics, 2014, 61(9): 721-727.

DOI：10.1080/09500340.2014.909957

• spatial resolution
• digital holography
• image reconstruction techniques
• optical transfer functions

In this paper, we analyze the point spread function of optical scanning holography (OSH) system based on random phase encoding (RPE-OSH) with restricted pupils and compare the lateral resolution of RPE-OSH system with the one of conventional OSH system by the definition of Rayleigh criterion. The results show that the main lobe width of RPE-OSH system is much narrower than that of the conventional OSH system under the same conditions; thus, the reconstructed image in RPE-OSH system has a higher lateral resolution and reserves more detailed information. This conclusion is verified by numerical simulations of the Cymbella cymbiformis image reconstruction.

• 出版日期2014-5-21
• 单位四川大学