01.17.23 -- Are Filters The Key To Boosting Performance?

Standard filters often are inadequate to delicately balance the competing technical needs across varying Raman devices, including pass-band wavelength range and blocking wavelength range, transmission level of the pass band, blocking level, AOI, CHA, and filter part size.

Any background light that reaches the detector of an optical system can greatly compromise signal-to-noise ratio. Using more than one blocking filter is a solution that requires careful consideration.

Most Raman microscopy applications seek to maximize access to the Raman fingerprint of the molecule of interest, requiring filters that provide “more signal with less background.”

When combined with microscopy, Raman spectroscopy can be used as a noninvasive, noncontact solution for exploring specific cellular structures and functions. It is no wonder that Raman has established a presence as an invaluable analytical technique both in labs and in the field.