NDLI: Holographic 3D intensity shaping of evanescent waves

Content Provider	IEEE Xplore Digital Library
Author	Thomson, L.C. Whyte, G. Mazilu, M. Courtial, J.
Copyright Year	2007
Description	Author affiliation: Glasgow Univ., Glasgow (Thomson, L.C.)
Abstract	This paper investigates the use of holographic algorithms to create more complex evanescent-wave fields. The authors have written a direct-search/simulated-annealing algorithm for shaping the 3D intensity pattern of evanescent wave fields. This direct-search algorithm includes a forward model that calculates the 3D intensity pattern due to a given number of evanescent plane-wave components. By making random changes to the phase and amplitude of each of these components the algorithm aims to create an approximation to a desired 3D intensity pattern. This algorithm has been demonstrated theoretically and was used to investigate limits to optical manipulation using evanescent waves. The algorithm is capable of creating configurations interesting for optical trapping. In particular, it is possible to create an evanescent light field that does not simply fall of exponentially in the direction of propagation, but that passes through a maximum. For optical trapping this means that dielectric objects can be trapped away from the evanescent-wave-creating surface which may help reduce particle sticking and allow easier manipulation.
Starting Page	1
Ending Page	1
File Size	150724
Page Count	1
File Format	PDF
ISBN	9781424409303
DOI	10.1109/CLEOE-IQEC.2007.4386048
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-17
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical diffraction Surface waves Optical propagation Chemical engineering Holography Charge carrier processes Holographic optical components Physics Astronomy Optical surface waves
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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