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Optical filters

BioPhotonics
Apr 2007
SemrockCat.jpgThe 47-page, full-color “2007 Catalog” from Semrock Inc. details optical filters for biotechnology and analytical instrumentation, including BrightLine fluorescence filters, such as the single- and multiband sets, the UV, bandpass and multiphoton varieties, and the Clinical filter sets for microsopy. It presents the RazorEdge Raman filters with laser lines ranging from 248 to 1064 nm, the MaxLine laser line filters with steep edges and high laser line transmission, the StopLine single- and multinotch deep laser-blocking filters, and the MaxMirror ultrabroadband laser mirror, with a wavelength range of 350 to 1100 nm. Charts and diagrams are included, along with technical notes on such topics as measuring light with wavelengths and wave numbers.


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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