Open AccessCoherent diffraction imaging of non-isolated object with apodized illumination
Author(s) -
Krishna P. Khakurel,
Takashi Kimura,
Yasumasa Joti,
Satoshi Matsuyama,
Kazuto Yamauchi,
Yoshinori Nishino
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.028182
Subject(s) - apodization , optics , ptychography , coherent diffraction imaging , diffraction , ghost imaging , phase (matter) , phase retrieval , spectral imaging , wavelength , physics , materials science , fourier transform , quantum mechanics
Coherent diffraction imaging (CDI) is an established lensless imaging method widely used at the x-ray regime applicable to the imaging of non-periodic materials. Conventional CDI can practically image isolated objects only, which hinders the broader application of the method. We present the imaging of non-isolated objects by employing recently proposed "non-scanning" apodized-illumination CDI at an optical wavelength. We realized isolated apodized illumination with a specially designed optical configuration and succeeded in imaging phase objects as well as amplitude objects. The non-scanning nature of the method is important particularly in imaging live cells and tissues, where fast imaging is required for non-isolated objects, and is an advantage over ptychography. We believe that our result of phase contrast imaging at an optical wavelength can be extended to the quantitative phase imaging of cells and tissues. The method also provides the feasibility of the lensless single-shot imaging of extended objects with x-ray free-electron lasers.