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Raman Longpass Edge Filters detect weak signals, small shifts.

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September 28, 2012 - Suited for Raman spectroscopy or Life Sciences instrumentation, TECHSPEC® Raman Longpass Edge Filters create sharp transition between transmitted Raman signals and blocked laser wavelengths. Single-filter solution, used for reducing spectral noise in Stokes shift applications, have hard coated design. Providing deep blocking for maximum laser rejection, filters come in 325, 355, 473, 488, 514.5, 532, 632.8, 785, 980, and 1,064 nm cutoff-wavelengths in both 12.5 and 25 mm dia.

TECHSPEC® Raman Longpass Edge Filters Detect Weakest Raman Signals

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Edmund Optics
101 E. Gloucester Pike
Barrington, NJ, 08007

Press release date: September 26, 2012

High transmission of desired energy and maximum rejection of laser wavelengths

Barrington, N.J.-Edmund Optics (EO), the premier provider of optical components, introduces TECHSPEC® Raman Longpass Edge Filters. These versatile filters are designed to create a sharp transition between transmitted Raman signals and blocked laser wavelengths.

Ideal for Raman Spectroscopy or Life Sciences Instrumentation

TECHSPEC Raman Longpass Edge Filters are an ideal single filter solution for reducing spectral noise in Stokes shift applications. These precision filters offer high transmission to detect weak signals - they can detect even the smallest Raman shifts. TECHSPEC Raman Longpass Edge Filters provide deep blocking for maximum laser rejection. They are an excellent choice for integration into Raman spectroscopy or confocal microscopy systems for both OEM and laboratory use.

Durable hard coated design

The filters' hard coated design offers outstanding transmission characteristics when compared to traditional coated filters for greater durability and cost savings. TECHSPEC Raman Longpass Edge Filters are robust and will stand up to the normal cleaning and handling associated with a high-quality optical component in a wide variety of demanding applications. TECHSPEC Raman Longpass Edge Filters are available in 325nm, 355nm, 473nm, 488nm, 514.5nm, 532nm, 632.8nm, 785nm, 980nm and 1064nm cutoff-wavelengths in both 12.5mm and 25mm diameters. All of these filter sizes and diameters are in stock and available for immediate delivery for fast turnaround and excellent value.

About EO:

Edmund Optics® (EO) is a leading producer of optics, imaging, and photonics technology for R&D, electronics, semiconductor, pharmaceutical, biomedical, and military markets around the globe. EO is the world's largest supplier of off-the-shelf optical components. Customers can purchase items by contacting EO at 1-800-363-1992, via the catalog, or via the website at

Company Contact:
Kirsten Bjork-Jones
Director Global Marketing Communications
Edmund Optics®, Inc.
101 East Gloucester Pike
Barrington, NJ 08007 U.S.A.
Phone: 1-800-363-1992
Fax: 1-856-573-6295

Editorial Contact:
James Liolin
Media Relations/Content Marketing
Lion Associates
550 Mamaroneck Avenue
Harrison, NY 10528
Phone: 1-914-670-0138
Fax:  1-914-670-0596
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