Semrock high-performance filters are an integral part of name-brand Raman spectrometers shipping worldwide. Semrock filters are ideal for a full range of industrial Raman instrumentation, including:

• Raman microscopes
• Microprobe analyzers (including optical-fiber-based systems)
• Laboratory spectrometers

Raman spectroscopy is key to many industries, including:

Semrock Raman filters mean value

Semrock has developed filters that are ideally suited for Raman spectroscopy. For the ultimate in performance our patented * RazorEdge® filters are perfectly matched to our highly transmitting patented * MaxLine® laser-line filters. For maximum flexibility in systems covering both Stokes and Anti-Stokes lines, our deep StopLine® notch filters are the first choice. All of these filters demonstrate amazing spectral performance and proven reliability, and yet cost significantly less than holographic notch and line filters.

These Raman filters simplify your instrument!

Semrock Raman filters simplify the design and manufacturing of your instrumentation and reduce costs.

• Rejected light is reflected to ease stray-light management.
• Angle-tuning is not necessary to simplify setup and assembly.
• Near-zero temperature dependence maximizes the operational temperature range while avoiding the need for any explicit compensation.
• High laser damage threshold allows maximum design flexibility.
• Proven reliability eliminates field failures.

Unique Semrock OEM Raman solutions

In addition to our well-known stocked catalog of edge, notch, and laser-line filters – ideal for smaller quantities – Semrock will work with your team to custom tailor these filters to your wavelengths and exact specifications on a volume OEM basis. For example, if you need an edge filter with even more steepness than our catalog filters, or a wider passband, just ask! Semrock also manufactures a variety of more specialized filters, including:  notch filters optimized for higher angles of incidence, steep short-wave-pass edge filters, and multi-notch filters for multi-laser systems.

*U.S. Patent No. 7,068,430.
*U.S. Patent No. 7,119,960.

Typical RazorEdge® long-wave-pass filter
(for 488 nm laser systems)

Typical StopLine® notch filter
(for 633 nm laser systems)

Typical MaxLine® laser-line filter
(for 976 nm laser systems)