In Raman spectroscopy, the employed interference optics must operate harmoniously as an integrated system to effectively detect the target Raman signal above ambient noise. Chroma’s proficiency in optical interference design, combined with exceptionally accurate thin-film coating technology, enables the development of the most sophisticated optics on the market.

Image Credit: Chroma Technology Corp.
Raman scattering produces a faint signal that requires high-performance optics with sharper edges and wider, flatter transmission bands to effectively isolate the desired signal. Chroma Raman filters provide the optimal solution for users who require enhanced transmission, fast transitions, and effective blocking to prevent interference from unwanted photons.
Chroma's Raman optics offer remarkably sharp transition slopes from transmission to blocking and/or reflection, ensure highly accurate passbands, and achieve exceptionally high out-of-band blocking to deliver the best possible signal-to-noise ratios (SNR).
Chroma's filter sets consist of a narrowband laser clean-up filter coordinated with a laser dichroic mirror, along with a longpass barrier/emission filter, all featuring distinct spectral slopes. Collectively, these optical components facilitate the identification of the slightest Raman signals.
Chroma's Raman Filters in Use
Chroma’s sputter-coated optics are available in laboratories across academic, medical, pharmaceutical, and biotechnology organizations. They are utilized by scientists who are advancing groundbreaking research, developing transformative medical therapies, and safeguarding lives worldwide.
Beyond Standard Offerings
Chroma's catalog of conventional Raman filters and sets is tailored to the most prevalent Raman wavelengths, drawing on the company's expertise in optical filter technology and a comprehensive understanding of Raman applications.
Whether it involves improving image quality for more accurate examinations in standard applications or investigating the boundaries of specialized techniques, Chroma remains at the forefront of optical technology, ensuring that endeavors are backed by the finest optical technology available.
Engineered for Endurance
Chroma's dedication to longevity remains steadfast, with each of its optics designed to withstand the demands of rigorous laboratory applications.
Chroma optics are constructed to meet rigorous environmental and durability standards established by the industry, including ISO and MIL criteria for resistance to abrasion, adhesion strength, and resistance to severe temperatures, humidity, salt fog, and laser damage thresholds.
An Unmatched Warranty
Chroma guarantees durability with its top-tier warranty that underscores its product longevity. This warranty reflects the company's confidence in its filters' ability to withstand years of demanding use.
Chroma filters offer a competitive edge for Raman applications that include:
- Nanotechnology
- Pharmaceuticals
- Polymer science
- Semiconductor industry
- Biomedical imaging
- Chemical analysis
- Environmental monitoring
- Food and beverage industry
- Material analysis
The filters play a crucial role in various sophisticated methods, each presenting its own distinct challenges and demands that Chroma is prepared to address or surpass.