Journal article
Note: Simple means for selective removal of the 365 nm line from the Hg spectrum using Dy
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, Dy3+, 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. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3639128]
Language: | English |
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Publisher: | American Institute of Physics |
Year: | 2011 |
Pages: | 096102 |
ISSN: | 10897623 and 00346748 |
Types: | Journal article |
DOI: | 10.1063/1.3639128 |
ORCIDs: | Vesborg, Peter Christian Kjærgaard , Chorkendorff, Ib , 0000-0002-4008-3934 and 0000-0003-1255-2868 |