Custom optical filters and coatings

Custom wavelength, optical density, angle of incidence, surface quality, and laser-damage configurations.

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Catalog context

Where Custom optical filters and coatings fits

Custom optical filters and coatings is listed in the Custom optical coatings family.

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Specifications

Full specifications for this product are available on request. Contact us for the datasheet.

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Guides that cover this decision

Engineering context for choosing this class of component, with the tradeoffs worked through on real specifications.

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Raman spectra acquired at green, red, and near-infrared excitation wavelengths

Raman spectroscopy

14 min Wavelength lab

Choosing a Raman excitation wavelength

Balance the ν⁴ signal law, fluorescence background, silicon detector cutoff, and spatial resolution across 532, 638, and 785 nm.

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CARS energy-level diagram beside a spectrum showing the anti-Stokes signal blue-shifted away from the fluorescence background

Coherent Raman imaging

17 min Design lab

Building a CARS microscope

Coherent anti-Stokes Raman scattering, from the four-wave-mixing physics to the hardware: excitation schemes, pulse width versus linewidth, the delay line that carries the spectral axis, and the detection chain.

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