Semrock Launches New Tunable Bandpass Optical Filters
Now access the full visible spectrum with only five filters.
January 22, 2010 – Rochester, NY – Semrock has broken new ground with the release of the new VersaChrome™ tunable bandpass filter family. VersaChrome filters offer wavelength tunability over a very wide range of wavelengths by adjusting the angle of incidence with essentially no change in spectral performance. With a tuning range of greater than 12% of the normal-incidence wavelength only five filters are needed to cover the full visible spectrum.
VersaChrome tunable filters ensure top performance with an average transmission greater than 90% across the bandwidth along with the center wavelength tuning flexibility of a diffraction grating. The complete set covers wavelengths from 390 – 700 nm. Parts are immediately available from stock in 25.2 x 35.6 x 2.0 mm sizes, and custom sizing may be done within one week.
Ideal for fluorescence microscopy, imaging, and quantitation applications, as well as hyperspectral imaging, high-throughput spectroscopy and fiber-optic telecommunications systems that can benefit from the spectral and two-dimensional imaging performance of thin-film filters. Because of their excellent polarization insensitivity and high optical quality and damage threshold, they are well-suited for a wide range of laser applications as well.
“At the heart of this invention is Semrock’s discovery of a way to make very steep edge filters at very high angles of incidence with essentially no polarization splitting and nearly equal edge steepness for both polarizations of light,” said Turan Erdogan, Chief Technical Officer.
Semrock guarantees same-day shipping policy, rapid custom-sizing in under a week, and a 30-day no-hassle return policy applies to all catalog products. All Semrock filters are covered under the company’s five-year warranty.
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 ion-beam-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 modern ion-beam sputtering with Semrock’s 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. For additional information about Semrock, its products, and its team of international distributors, visit the company website at
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