Document Detail


Analytical solutions for the electromagnetic fields of tightly focused laser beams of arbitrary pulse length.
MedLine Citation:
PMID:  16902628     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The analytical solution for a monochromatic focused laser beam was recently published [Opt. Lett.31, 1447 (2006)]. The effect of introducing bandwidth by including a finite-length temporal pulse envelope is included exactly. This is done formally first in the frequency domain for an arbitrary pulse shape, and the specific case of a cosine-squared envelope is then solved analytically for all pulse lengths, thereby decreasing the computation time by 2 orders of magnitude. The inclusion of longer wavelengths reduces the fraction of laser energy in the focus from 86.5% to 83.5% for a 5 fs Ti:sapphire laser and 72.7% in a single-cycle pulse.
Authors:
Scott M Sepke; Donald P Umstadter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  31     ISSN:  0146-9592     ISO Abbreviation:  Opt Lett     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-08-11     Completed Date:  2006-10-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2589-91     Citation Subset:  -    
Affiliation:
Department of Physics and Astronomy, University of Nebraska, Lincoln, Nebraska 68588-0111, USA. ssepke2@unlserve.unl.edu
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