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. 2022 Mar 25;13(4):2467–2487. doi: 10.1364/BOE.450993

Fig. 3.

Fig. 3.

Schematic of the CRM custom set-up, combining a Raman spectroscopy path and a surface imaging path. OF: optical fiber; C: collimator (off-axis parabolic mirror); BP: band-pass filter; LP: long-pass filter; DBS: dichroic beamsplitter; MO: microscope objective; AS: afocal system.