Increased depth of focus in random-phase-free holographic projection

Michał Makowski , Tomoyoshi Shimobaba , Tomoyoshi Ito

Abstract

The recently proposed random-phase-free method enables holographic reconstructions with very low noise, which allows fine projections without time integration of sub-holograms. Here, we describe the additional advantage of this method, namely, the extended depth of sharp imaging. It can be attributed to a lower effective aperture of the hologram section forming a given image point at the projection screen. We experimentally compare the depth of focus and imaging resolution for various defocusing parameters in the cases of the random-phase method and the random-phase-free method. Moreover, we discuss the influence of the effective aperture in the presence of local obstacles in the hologram's plane.
Author Michał Makowski (FP / OPD)
Michał Makowski,,
- Optics and Photonics Division
, Tomoyoshi Shimobaba - [Chiba University]
Tomoyoshi Shimobaba,,
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, Tomoyoshi Ito - [Chiba University]
Tomoyoshi Ito,,
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Journal seriesChinese Optics Letters, ISSN 1671-7694, (A 20 pkt)
Issue year2016
Vol14
No12
ASJC Classification2208 Electrical and Electronic Engineering; 3107 Atomic and Molecular Physics, and Optics; 2504 Electronic, Optical and Magnetic Materials
DOIDOI:10.3788/COL201614.120901
Languageen angielski
Score (nominal)20
ScoreMinisterial score = 20.0, 05-09-2019, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 05-09-2019, ArticleFromJournal
Publication indicators Scopus Citations = 4; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.759; WoS Impact Factor: 2016 = 1.859 (2) - 2016=1.149 (5)
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