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Proceedings Paper

Apodized photon sieves for phase-contrast nano-imaging of living cells
Author(s): Guanxiao Cheng; Ping Xu; Chunquan Hong; Zhilong Sun
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Paper Abstract

We present a type of diffractive lenses “Zernike apodized photon sieves” (ZAPS), which structure is based on the combination of two concepts: apodized photon sieves and Zernike phase-contrast. In combination with the synchrotron light sources, the ZAPS can be used as an objective for high-resolution X-ray phase-contrast microscopy in physical and life sciences. The ZAPS is a single optic that integrates the appropriate ±π/2 radians phase shift through selective zone placement shifts in an apodized photon sieve. The focusing properties of the ZAPS can be easily controlled by apodizing its pupil function. An apodized photon sieve with Gaussian pupil was fabricated by lithographic technique and showed that the side-lobes have been significantly suppressed at the expense of slightly widening the width of the main lobe.

Paper Details

Date Published: 23 May 2013
PDF: 6 pages
Proc. SPIE 8792, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials, 87921P (23 May 2013); doi: 10.1117/12.2020323
Show Author Affiliations
Guanxiao Cheng, Shenzhen Univ. (China)
Ping Xu, Shenzhen Univ. (China)
Chunquan Hong, Shenzhen Univ. (China)
Zhilong Sun, Shenzhen Univ. (China)


Published in SPIE Proceedings Vol. 8792:
Optical Methods for Inspection, Characterization, and Imaging of Biomaterials
Pietro Ferraro; Monika Ritsch-Marte; Simonetta Grilli; David Stifter, Editor(s)

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