Document Detail

Limitations of superoscillation filters in microscopy applications.
MedLine Citation:
PMID:  22378433     Owner:  NLM     Status:  In-Data-Review    
The idea of superresolving pupil filters comes from the concept of superoscillations that may occur in regions of a band-limited signal with small amplitude having oscillations faster than the fastest Fourier component of the signal. In optical microscopy, superresolution can be achieved by appropriate design of pupil functions where the angular aperture determines the ultimate focal spot smaller than the Abbe diffraction limit outside the evanescent field region. The angular aperture cannot be increased indefinitely and the huge sidelobes cannot be avoided that are present in superresolving filters. The limitations of using such kind of filters in microscopy applications are discussed through computational examples.
Heikki J Hyvärinen; Shakil Rehman; Jani Tervo; Jari Turunen; Colin J R Sheppard
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  37     ISSN:  1539-4794     ISO Abbreviation:  Opt Lett     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-03-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  903-5     Citation Subset:  IM    
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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