Abstract

A noniterative method of retrieving the phase of a wave field from intensities measured during scanning of a slit aperture is proposed. In the measurements, one records the diffraction intensities of wave fields transmitted through a slit that is scanned along two directions in the Fresnel-zone plane of an object’s field. From these intensities, the phase in the Fresnel-zone plane can be retrieved by a method in which a novel phase calculation technique that uses Fourier transforms is included. Because the method does not require lens systems, it provides a potentially useful means for coherent imaging by use of x rays, electrons, or nuclear particles.

© 2005 Optical Society of America

Improvement of resolution for phase retrieval by use of a scanning slit

Nobuharu Nakajima
Appl. Opt. 45(23) 5976-5983 (2006)

Lensless imaging from diffraction intensity measurements by use of a noniterative phase-retrieval method

Nobuharu Nakajima
Appl. Opt. 43(8) 1710-1718 (2004)

Phase retrieval from a high-numerical-aperture intensity distribution by use of an aperture-array filter

Nobuharu Nakajima
J. Opt. Soc. Am. A 26(10) 2172-2180 (2009)

Lensless coherent imaging by a deterministic phase retrieval method with an aperture-array filter

Nobuharu Nakajima
J. Opt. Soc. Am. A 25(3) 742-750 (2008)

Coherent diffractive imaging beyond the Fresnel approximation using a deterministic phase-retrieval method with an aperture-array filter

Nobuharu Nakajima
Appl. Opt. 52(7) C1-C10 (2013)