Abstract
Phase space optics allows the four-dimensional (4D) simultaneous visualization of both space (x) and spatial frequency (u) information. The Wigner distribution function (WDF) is commonly used to represent the phase space characterization. Compared with the coherent optical field expressed by two-dimensional (2D) complex amplitude, the 4D WDF (2D space and 2D spatial frequency) can characterize optical field with arbitrary coherent state. It is especially advantageous for the characterization of partially coherent optical fields. The WDF is real and may have negative values, which are the result of phase-space interference. In this paper, an improved phase-space retrieval method is demonstrated. First, capture three-dimensional intensity focal stack by camera sensors. Then, phase space tomography (PST) combined with a non-linear iterative algorithm is conducted to reconstruct the whole WDF. We further analyzed the effect of the imaging system, i.e., the illumination aperture and the aperture of objective lens effect.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
