Find the right Chroma filters and filter sets for Raman, fluorescence, UV–Vis, and other analytical spectroscopy workflows. Optimize signal-to-noise, protect your detectors, and simplify system design using proven catalog components or custom optics. Start with our online tools, then browse filters and sets. When you’re ready, request a quote or talk with our engineers.
Model laser lines, emission, and filter performance to confirm spectral isolation before you buy.
A quick look at the components we design for Raman systems and how they support clean, reliable signal collection.
Optical filters and the value they bring to Raman spectroscopy
Explore ready-made sets for Raman, fluorescence, and laser-based analytical workflows
Shop bandpass, edge, notch, and ND filters to fine-tune or build your spectroscopy system.
Get a quick look at how CARS imaging works and the optical components involved. This overview outlines the role of pump, Stokes, and probe lasers, shows example filter configurations, and highlights the types of dichroics and emission filters typically used in CARS systems. It’s a helpful reference for understanding where specific filters fit within advanced Raman workflows.
Calculate the Stokes and anti-Stokes Raman lines in both wavelength and wavenumber.
Convert between wavelength λ (nm) and wavenumber σ (cm⁻¹).
Choose individual filters and optics to build or customize your system:
Longpass Filters — Pass longer wavelengths while blocking excitation and stray light.
Shortpass Filters — Pass shorter wavelengths for order sorting or spectral separation.
Single Bandpass Filters — Define narrow spectral windows for excitation or detection.
Multiband Bandpass Filters — Support multi-line or multi-analyte systems with fixed profiles.
Notch Rejection Filters — Suppress specific laser lines for Raman and weak-signal work.
Dichroic Beamsplitters — Separate excitation and collection paths.
Neutral Density Filters — Control intensity without altering spectral shape.
Analytical instruments demand stable, repeatable performance over years of continuous use. Chroma’s hard-sputtered coatings are engineered to withstand high laser power, temperature and humidity cycling, and other environmental stresses without spectral drift.
As an ISO-certified company, we adhere to strict quality assurance procedures and stand behind this commitment with an industry-leading warranty—our assurance of long-term experimental stability and reproducibility.
Learn how to get the best results from your filters:
Technical Library — Application notes, white papers, and guides.
Handbook of Optical Filters for Fluorescence Microscopy - Understand and apply fluorescence filter use.
Browse by Fluorochrome - Start from your dyes and quickly find compatible excitation, emission, and dichroic filters.
Cleaning & Handling Filters — Best practices to protect coatings and preserve performance.
Filter Orientation Guide — Correct installation of filters and dichroics.
Spectra Viewer Tutorials — Short walkthroughs to get you started modeling components and dyes.
Chroma filters support a wide range of scientific and industrial applications. Explore other areas where our technology enables precision and reliability.
Chroma’s application scientists and engineers provide expert guidance at every stage—from selecting the optimal catalog set for a standard spectroscopy applications to co-designing custom optics for novel instruments or OEM devices. We are dedicated to helping you solve your unique optical challenges.
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