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UV FILTERS

Photonics Spectra
Apr 2007
Semrock Inc.Request Info
 
Semrock_UVFamily_dark.jpgSemrock Inc. has announced optical filters at UV wavelengths made with proprietary advanced ion beam sputtering deposition technology. The new filters include 248- and 266-nm versions of the RazorEdge types for Raman spectroscopy, with laser-line blocking of greater than OD 6, ultrasteep edges and >90% average transmission over the passband. A 266-nm MaxLine laser cleanup filter with transmission of >55% at the laser line has been introduced, as have UV-transmitting BrightLine fluorescence filters, including a 280-nm bandpass filter with >70% transmission and deep blocking of nonessential wavelengths.


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GLOSSARY
optical filters
An optical element that blocks or transmits a selected wavelength of light. Optical filters can either be absorption filters or interference filters. Absorption filters absorb any unwanted wavelengths while the interference filter will use the effects of constructive and destructive superposition to transmit only the selected wavelength.
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