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. 2016 Jul 11;7(8):2993–3006. doi: 10.1364/BOE.7.002993

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Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

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Fig. 2 — Testing the efficacy of a DMD as a pseudo-slit for Raman micro-spectroscopy: (a) Raman CCD image for a two-point system. (b) Image of the corresponding sample illumination, and (c) the DMD indicator camera (with mirrors inverted to direct only the sampling points towards the camera). Spectral resolution testing: (d) Raman spectra of a tylenol sample for different slit widths on the DMD for a first-order spot, and (e) comparison of the worsening of the spectral resolution for increasing slit width of the DMD-generated reflective slit, and traditional mechanical slit.