A new phase plate for noise-free coherent imaging systems |
| |
Authors: | PC Mehta Devender Mohan R Hradaynath |
| |
Institution: | Instruments Research and Development Establishment, Dehra Dun - 248008, India |
| |
Abstract: | A new phase plate has been developed for noise-free coherent imaging system. The phase plate consists of a bleached holographic lens whose frequency is modulated in such a way that the information from each point of the object is distributed in a small three dimensional space at the Fourier plane. This introduces redundancy in the hologram and helps in smoothing out the amplitude variations in the Fourier plane. Experimental results are presented which show the capabilities of the phase plate. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |