Coherence aperture restricted spatial resolution for an arbitrary depth plane in incoherent digital holography

Incoherent digital holography (IDH) requires no spatial coherence; however, it requires high temporal coherence for a light source to capture holograms with high spatial resolution. Temporal coherence is often enhanced with a bandpass filter, reducing the light utilization efficiency. Thus, there is...

Full description

Saved in:
Bibliographic Details
Published in:Applied optics (2004) 2021-06, Vol.60 (18), p.5392
Main Authors: Nobukawa, Teruyoshi, Katano, Yutaro, Goto, Masahide, Muroi, Tetsuhiko, Kinoshita, Nobuhiro, Iguchi, Yoshinori, Ishii, Norihiko
Format: Article
Language:English
Subjects:
Apertures
Bandpass filters
Coherence
Holography
Light sources
Optimization
Spatial resolution
Tradeoffs
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Incoherent digital holography (IDH) requires no spatial coherence; however, it requires high temporal coherence for a light source to capture holograms with high spatial resolution. Temporal coherence is often enhanced with a bandpass filter, reducing the light utilization efficiency. Thus, there is a trade-off between spatial resolution and light utilization efficiency. In this paper, we derive a relationship between spatial resolution and temporal coherence by including a conceptual aperture, determined by temporal coherence, in our previous theory of spatial resolution for arbitrary depth planes [ Opt. Express 27 , 33634 ( 2019 ) OPEXFF 1094-4087 10.1364/OE.27.033634 ]. Experimental evaluations verified the effectiveness of our theory, which is useful for the optimization of IDH setups and avoiding the trade-off.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.426583