摘要
Phase modulation is first introduced into aperture-scanning Four/er ptychography. A series of images are acquired with an aperture scanning the Fourier plane of an optical system with a phase modulator. Then the reported algorithm synthesizes the captured images in the frequency domain to recover a high-resolution complex object wavefront. The leading results are considerably improved in robustness against the noises and shift errors, with a much faster convergence speed compared with the conventional scheme without phase modulation.
Phase modulation is first introduced into aperture-scanning Four/er ptychography. A series of images are acquired with an aperture scanning the Fourier plane of an optical system with a phase modulator. Then the reported algorithm synthesizes the captured images in the frequency domain to recover a high-resolution complex object wavefront. The leading results are considerably improved in robustness against the noises and shift errors, with a much faster convergence speed compared with the conventional scheme without phase modulation.
基金
Supported by the National Natural Science Foundation of China under Grant No 61205144
the Research Project of National University of Defense Technology under Grant No JC13-07-01
the key Laboratory of High Power Laser and Physics of Chinese Academy of Sciences
