Document Detail

Note: Simple means for selective removal of the 365 nm line from the Hg spectrum using Dy.
MedLine Citation:
PMID:  21974629     Owner:  NLM     Status:  In-Data-Review    
The emission spectrum of mercury has a notable line at about 365 nm under both low and medium-high pressure conditions. A simple filter based on a solution of dysprosium ions, Dy(3+), is shown to be very useful for applications of Hg-light sources where this line is unwanted. The presented filter is cheap, robust, and stable towards degradation or bleaching - even under intense irradiation. The absorption spectrum for the Dy-filter is presented along with emission spectra from both low-pressure and high-pressure Hg-lamps to illustrate the utility of the technique under best-case and worst-case conditions. Attenuation of the 365 nm spectral line is almost total for the low-pressure source whereas for the high-pressure source the attenuation is about a factor of three.
P C K Vesborg; I Chorkendorff; T Brock-Nannestad; J R Dethlefsen; J Bendix
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Review of scientific instruments     Volume:  82     ISSN:  1089-7623     ISO Abbreviation:  Rev Sci Instrum     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-10-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0405571     Medline TA:  Rev Sci Instrum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  096102     Citation Subset:  IM    
Department of Physics, CINF, Technical University of Denmark (DTU), Building 312, Fysikvej, DK-2800 Kgs. Lyngby, DenmarkDepartment of Chemistry, University of Copenhagen, H. C. Orsted Instituttet, Universitetsparken 5, DK-2300 Ko̸benhavn O, Denmark.
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