The perfect answer to Raman spectroscopy’s unique needs.
Chroma Technology is a leading manufacturer and OEM supplier of highly precise, thin-film,
optical interference filters. Chroma offers a variety of Raman filters depending on your needs
including single filters, filter sets, and beamsplitters.

Raman
Spectroscopy
Maximize the Raman Signal
At Chroma we understand that Raman scattering is a weakersignal that requires much better filters, with steeper edges, inorder to isolate the signal of interest. Our Raman filters or sets
will cover a wide variety of spectral ranges for your project
when you need higher transmission values, steep transitions,and superior blocking to keep out unwanted photons.

 ur Raman filters provide:OHigh transmission for detectionof weak signals

RayLeigh Scattering

λ =λBroad transmission bandScatter

Excellent image quality
Ultra-steep edge
Deep blocking
Custom designs when neededOffering designs from the UV to IR

λLaserRaman Scattering

λ >λScatter

Laser

Chroma Technology Corp | Phone: +1 800.824.7662 | sales@chroma.com | www.chroma.com/raman

Laser

Filters & Sets for Raman Applications
To see the complete list of Raman RT and RET filters and sets please visit our website at chroma.com

49951

49953
Raman 266nm Laser Longpass Set
RT266rdc |Chroma Raman Filters
and Filter Sets

RET270lp |RET266/3x

Dedicated Filter set for Raman spectroscopy.
The ultra-steep 266nm laser dichroic mirror
perfectly matches the ultra-steep longpass
emission filter which blocks the 266nm laser.
Set includes the narrow-band 266nm laser
clean-up filter.

Raman 488nm Laser Longpass Set
RT488rdc |RET493lp |RET488/4x

Dedicated Filter set for Raman spectroscopy.
The ultra-steep 488nm laser dichroic mirror
perfectly matches the ultra-steep longpass
emission filter which blocks the 488nm laser.
Set includes the narrow-band 488nm laser
clean-up filter.

A set of optical interference filters
used in Raman spectroscopy must
perform cohesively as a unit in order tosuccessfully detect the desired Raman
signal above the level of backgroundnoise. Chroma’s expertise in opticalinterference filter design and highly
precise, thin-film deposition technologies
results in the most advanced opticalfilters available. Because we’re a 100%
employee-owned company, we know thevalue of being invested in a company’s
success, and we value yours as much as
our own.

49952

49954

Raman 532nm Laser Longpass Set
RT532rdc |RET537lp |RET532/4x

Dedicated Filter set for Raman spectroscopy.
The ultra-steep 532nm laser dichroic mirror
perfectly matches the ultra-steep longpass
emission filter which blocks the 532nm laser.
Set includes the narrow-band 532nm laser
clean-up filter.

Chroma’s Raman filter sets include an

Raman 633nm Laser Longpass Set
RT633rdc |RET638lp |RET633/5x

Dedicated Filter set for Raman spectroscopy.
The ultra-steep 633nm laser dichroic mirror
perfectly matches the ultra-steep longpass
emission filter which blocks the 633nm laser.
Set includes the narrow-band 633nm laser
clean-up filter.

ultra-steep laser dichroic mirror that
perfectly matches an ultra-steep longpass emission filter, plus a narrow band
laser clean-up filter. Together, thesefilters allow for the detection of thecleanest Raman signals. Our catalog ofstandard Raman sets are designed forthe most common Raman wavelengths,including UV (266nm), Visible (488nm,532nm and 633nm) and NIR (633nm,785nm and 1064nm).
Custom filters and sets areavailable on request by contacting
sales@chroma.com or by visiting

49950
Raman 785nm Laser Longpass Set
RT785rdc |www.chroma.com/request-a-quote.

49955
RET792lp |RET785/6x

Dedicated Filter set for Raman spectroscopy.
The ultra-steep 785nm laser dichroic mirror
perfectly matches the ultra-steep longpass
emission filter which blocks the 785nm laser.
Set includes the narrow-band 785nm laser
clean-up filter.

Raman 1064nm Laser Longpass Set
RT1064rdc |RET1072lp |RET1064/7x

Dedicated Filter set for Raman spectroscopy.
The ultra-steep 1064nm laser dichroic mirror
perfectly matches the ultra-steep longpass
emission filter which blocks the 1064nm laser.
Set includes the narrow-band 1064nm laser
clean-up filter.

Chroma Technology Corp | Phone: +1 800.824.7662 | sales@chroma.com

www.chroma.com/raman