Dual wavelength digital holographic Laplacian reconstruction

Files in This Item:
File Description SizeFormat 
Dual wavelength digital holographic Laplacian reconstruction.pdf477.52 kBAdobe PDFDownload
Title: Dual wavelength digital holographic Laplacian reconstruction
Authors: Ryle, James P.
Li, Dayan
Sheridan, John T.
Permanent link: http://hdl.handle.net/10197/3412
Date: 15-Sep-2010
Abstract: Access to the spatial derivatives of an optical wave field can be used to enhance edge detection, focusing, and holographic imaging. It was recently shown that, by using digital holographic techniques, the Laplacian of an object field can be extracted. Here it is demonstrated that equivalent results can be found using two holograms captured at either two distances or with two appropriately related wavelengths. Experimental and numerical results confirming the theoretical analyses are presented. The proposed two-wavelength-based system requires no mechanical repositioning of the object and is shown to provide superior performance.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: Optical Society of America
Copyright (published version): 2010 Optical Society of America
Subject LCSH: Holography
Laplacian operator
Diffraction
Imaging systems
Image reconstruction
DOI: 10.1364/OL.35.003018
Language: en
Status of Item: Not peer reviewed
Appears in Collections:Electrical and Electronic Engineering Research Collection

Show full item record

SCOPUSTM   
Citations 20

15
Last Week
0
Last month
checked on Jun 22, 2018

Google ScholarTM

Check

Altmetric


This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.