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arXiv 2001.039092020-01-12physics.opticseess.IV

Compact Three-Dimensional Quantitative Phase Contrast Imager

Vijayakumar Anand, Tomas Katkus, Denver Linklater, Elena P Ivanova, Saulius Juodkazis

备注：: 6 pages, 6 figures

英文摘要：

Detection of phase variations across optically transparent samples is often a difficult task. We propose and demonstrate a compact, lightweight and low cost quantitative phase contrast imager. Light diffracted from a pinhole is incident on a thick object and the modulated light is collected by an image sensor and the intensity pattern is recorded. Two optical configurations namely lens-based and lensless cases are compared. A modified phase-retrieval algorithm is implemented to extract the phase information of the sample at different axial planes from a single camera shot.

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