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. Author manuscript; available in PMC: 2013 Feb 28.
Published in final edited form as: J Am Chem Soc. 2012 Feb 15;134(8):3623–3626. doi: 10.1021/ja210081h

Figure 1.

Figure 1

(A) Schematic diagram of multiplex SRS setup. HWP: half-wave plate; QWP: quarter-wave plate; EOM: electro-optical modulator; PBS: polarizing beamsplitter; DM: dichroic mirror; PMT: photomultiplier tube; LIA: lock-in amplifier. (B) Workflow of the multiplex Raman encoding and decoding process. (C) Example AOTF filtered spectrum using three channel modulation. Each shaded region corresponds to one channel modulated at a different frequency.