Feb. 23, 2010

Tunable Optical Filters

By adjusting the angle of incidence the new series of Semrock VersaChrome filters change their spectral performance to shorter wavelength. But in contrast to "normal" interference filters, there is no change in transmission intensity (>90%) and blocking specifications, they are also polarization insensitive with high imaging optical quality. The tuning can done between 0 and 60 degrees, which results in a center wavelength change of approximately 60 nm. Five different VersaChrome filters are available from 390-700nm, ideal tools for fluorescence spectroscopy. moreFeb. 19, 2010

Laser Fluorescence Filters

A collaboration between Cobolt and Semrock, has resulted in the development of optical filters optimized for use with the Cobolt Mambo 594 nm orange laser in fluorescence instrumentation. To realize the benefits of this new laser wavelength, optical filters that are designed with matched spectral properties are needed. Semrock has announced a number of new filters designed specifically for instrumentation based on the 594 nm laser, and ideal for excitation and detection of Texas Red, Alexa Fluor 594, and the popular new fluorescent proteins mCherry and mKate. moreNov. 01, 2007

Semrock Optical Filters

Semrock Optical Filters. Semrock has announced new filters for the efficient isolation of individual lines of highpower mercury arc lamps. Each filter obtains maximum throughput of the desired mercury line through passband transmission and optimization of the filter design. The non-absorbing blocking and fused silica substrate ensures that undesired mercury lines and other background light are effectively eliminated without the risk of filter solarization. more