Dual wavelength digital holographic Laplacian reconstruction
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|Title:||Dual wavelength digital holographic Laplacian reconstruction||Authors:||Ryle, James P.
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
|DOI:||10.1364/OL.35.003018||Language:||en||Status of Item:||Not peer reviewed|
|Appears in Collections:||Electrical and Electronic Engineering Research Collection|
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