论文信息 - Polynomial phase masks for extending the depth of field of a microscope.

Polynomial phase masks for extending the depth of field of a microscope.

A polynomial phase mask is designed and fabricated for enhancing the depth of field of a microscope by more than tenfold. A generic polynomial of degree 31 that consists of 16 odd power terms is optimized by simulated annealing with a realistic average modulation transfer function (MTF) iteratively set as the target MTF. Optical experimental results are shown.

Yunlong Sheng | Nicolas Caron

[1] Jianfeng Sun,et al. Optimized phase pupil masks for extended depth of field , 2007 .

[2] W. Cathey,et al. Phase plate to extend the depth of field of incoherent hybrid imaging systems. , 2004, Applied optics.

[3] W. Cathey,et al. Extended depth of field through wave-front coding. , 1995, Applied optics.

[4] W. Cathey,et al. Extended depth of field in hybrid imaging systems: circular aperture , 2004 .

[5] N George,et al. Electronic imaging using a logarithmic asphere. , 2001, Optics letters.

[6] Jorge Ojeda-Castañeda,et al. High focal depth with fractional-power wave fronts. , 2004, Optics letters.

[7] C. D. Gelatt,et al. Optimization by Simulated Annealing , 1983, Science.

[8] Zeev Zalevsky,et al. Radial mask for imaging systems that exhibit high resolution and extended depths of field. , 2006, Applied optics.

[9] Sudhakar Prasad,et al. Pupil-phase optimization for extended-focus, aberration-corrected imaging systems , 2004, SPIE Optics + Photonics.