Raman & Dichroic Beamsplitters
This analytical technique uses the light scattered from the vibrational energy modes of the sample. Rayleigh scattering is a simple deflection of the incoming light, Raman scattering is an inelastic scattering of light. There is an exchange of energy with the incoming photons resulting in a directional deviation of the light path. The resultant spectrograph is a ‘fingerprint’ of the substance being analyzed. This incredibly powerful technique is used in a variety of applications from security inspection at airports to food safety. Raman scattering is much weaker than Rayleigh scattering, and therefore requires much better filters to isolate the signal of interest – high transmission values, steep transitions and superior blocking to keep out unwanted photons. Chroma offers three tiers of Raman filter depending on need and budget. ~
If you don’t see what you are looking for, please contact us. We have a large inventory of filters and a knowledgeable staff ready to help you design and build a filter to meet any specification.
Dichroic beamsplitters (mirrors) are used as light guiding optics, intended to reflect a specified range(s) of wavelengths and transmit a different specified range(s) of wavelengths at a specified AOI, typically 45 degrees. Most of Chroma’s catalog dichroics are intended for use at 45 degrees AOI, if unsure please ask us. Dichroics are a necessary component of filter sets used in epifluorescence configurations.
Chroma manufactures UltraFlat dichroics for laser applications demanding superior levels of surface flatness, such as TIRF and other super-resolution techniques. We offer UltraFlat dichroics either for use as individual parts or included in assembled filter sets.
However, the secret with flat dichroics is that they need to stay flat in your imaging system. Filter cubes that use clips, springs or screws to hold dichroics will torque them out of flatness. Chroma's TIRF & Super-resolution filter cubes keep your dichroics just as flat in your microscope as they were when we made them.
Most of our dichroics intended for more routine widefield fluorescence applications neither have nor require high levels of surface flatness but still deliver the other performance advantages of sputtered interference filter coatings..
Choosing Surface Flatness:
Learn about Chroma's UltraFlat Dichroic thickness options for distortion-free imaging.
Showing 6 products
- (-) Remove Raman filter Raman
- (-) Remove Dichroic Beamsplitters filter Dichroic Beamsplitters
Center/Edge/Notch Wavelength
Application
- (-) Remove Fluorescence filter Fluorescence
- (-) Remove Dichroic Beamsplitters filter Dichroic Beamsplitters
- (-) Remove Raman filter Raman
- Overview
Microscopes: Filter cube mounting options are available when adding to cart.
Listed price applies to filter sizes up to 25mm diameter or dichroics up to 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes.
- Overview
Microscopes: Filter cube mounting options are available when adding to cart.
Listed price applies to filter sizes up to 25mm diameter or dichroics up to 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes.
- Overview
Microscopes: Filter cube mounting options are available when adding to cart.
Listed price applies to filter sizes up to 25mm diameter or dichroics up to 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes.
- Overview
Microscopes: Filter cube mounting options are available when adding to cart.
Listed price applies to filter sizes up to 25mm diameter or dichroics up to 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes.
- Overview
Microscopes: Filter cube mounting options are available when adding to cart.
Listed price applies to filter sizes up to 25mm diameter or dichroics up to 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes.
- Overview
Microscopes: Filter cube mounting options are available when adding to cart.
Listed price applies to filter sizes up to 25mm diameter or dichroics up to 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes.