Document Detail


A bright point source of ultrashort hard x-ray pulses using biological cells.
MedLine Citation:
PMID:  22418381     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We demonstrate that the interaction of intense femtosecond light on a plain solid substrate can be substantially altered by a few micron layer coating of bacterial cells, live or dead. Using E. Coli cells, we show that at an intensity of 10<sup>16</sup>W cm<sup>-2</sup>, the bremsstraahlung hard x-ray emission (up to 300 keV), is increased by more than two orders of magnitude as compared to a plain glass slab. Particle-in-cell simulations carried out by modeling the bacterial cells as ellipsoidal particles show that the hot electron generation is indeed enhanced by the presence of microstructures. This new methodology should pave way for using microbiological systems of varied shapes to control intense laser produced plasmas for EUV/x-ray generation.
Authors:
M Krishnamurthy; Sudipta Mondal; Amit D Lad; Kartik Bane; Saima Ahmed; V Narayanan; R Rajeev; Gourab Chatterjee; Prashant Kumar Singh; G Ravindra Kumar; M Kundu; Krishanu Ray
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  20     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-03-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5754-61     Citation Subset:  IM    
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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