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January 16, 2013  

Semrock Manufactures the World's First 11-band Optical Filter

Rochester, NY- Semrock proudly announces the production of the world’s first 11-band filter with steep edges within a 100nm wide spectral window. The filter has high transmission and exceptional blocking outside each of the eleven. The unmatched spectral complexity of this 11-band filter was designed specifically to match the corresponding formaldehyde fluorescence emission spikes over the 380-480nm wavelength range.  The filter can be utilized investigate the homogeneous charge combustion ignition (HCCI) combustion process.

This is not Semrock’s first monumental accomplishment; they were also the world’s first manufacturer of a five band filter for multicolor fluorescence applications. Semrock is proud to provide their OEM customers with optical filter solutions that meet the most demanding, spectrally complex applications. Please contact Semrock to discuss your project and optical filter needs.


Semrock, Inc., a Unit of IDEX Corporation, manufactures optical filters that set the standard in performance and reliability for the biotech and analytical instrumentation industries, as well as innovative optical filters for more general laser and optical systems applications.  All Semrock optical filters are made with hard, sputtered optical coatings. OEM filters are manufactured in volume.  End-users benefit from a wide selection of standard catalog products that ship from stock.  Semrock’s patented and patent-pending products include its highly acclaimed BrightLine® fluorescence filters, state-of-the-art filters for Raman spectroscopy, and other unique filters for lasers and optical systems.  Semrock’s innovative products, made possible by combining Semrock’s engineering strength with proprietary volume manufacturing technology, are covered under a five-year warranty.

Founded in September 2000, Semrock is based in Rochester, New York, a well-known center of optics, and has sales offices throughout the United States.  In October 2008 Semrock became a Unit of IDEX Corporation.  

Katie Toma
IDEX Optics & Photonics