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Notch Signal Conditioners
ROCHESTER, N.Y. - The U.S. Patent and Trademark Office (USPTO) has confirmed the validity of four key Semrock patents that were subject to a series of reexamination requests. This rigorous review bolsters the intellectual property of Semrock, Inc., and reconfirms Semrock's patent rights to classes of edge filters, laser-line filters, notch filters, and broadband mirrors. Approximately one year... Read More
With bandwidth less than 10 cm-1, BragGrate(TM) Notch Filters and BragGrate(TM) Bandpass Filters enable measurement of ultra-low frequency Raman bands with standard instruments. Units are based on reflecting volume Bragg gratings formed in photosensitive glass material by holographic techniques with no organic, thermally or optically unstable materials. Able to withstand temperatures... Read More
Offering 92% transmission from 350-2,000 nm, TECHSPECÂ® OD 6 Rugate Notch Filters are manufactured using single coating layer with continuous sinusoidally varying refractive index. Units feature low ripple of less than 5% and no harmonic reflections, making them suited for broad range of wavelengths. Mounted in black anodized aluminum ring for integration into optical systems, all models have... Read More
Available for 488, 532, 561, and 808 nm wavelengths, StopLineÂ® Deep-Notch Filters achieve optical density greater than 6 with low-ripple passbands that extend from ultraviolet well into near-infrared. E-Grade filters are intended for any application requiring high rejection of one or more laser lines, while transmitting signal light over wide range of wavelengths on either side of laser... Read More