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Edge Filters for Raman Spectroscopy

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Edge Filters for Raman Spectroscopy

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This technical note first defines various terms useful in describing Raman edge (or notch) filters. After this, there is a discussion on how to best use the edge pass filter to ensure that the desired optical performance is obtained for the intended application. Different parameters that affect the measured edge pass filter transmittance are described including angle of incidence, light cone incident upon the filter, polarization of light and laser line wavelength variation

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