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Yaqi Chen, Christine H. Moran, Zhao Tan, A. Lake Wooten and Joseph A. O'Sullivan Robust analysis of multiplexed SERS microscopy of Ag nanocubes using an alternating minimization algorithm Journal of Raman Spectroscopy 44

Version of Record online: 25 FEB 2013 | DOI: 10.1002/jrs.4241

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We present an estimation-theoretic method for jointly recovering both the constituent spectra and mixture coefficients from multiplex surface-enhanced Raman spectroscopy (SERS) spectra. Advantages of this method include: accurate extraction of component spectra; robustness against large random noise; physically significant results; low fitting error for the mixed signal; and guaranteed convergence toward the global minimum. The accuracy of our method was validated by applying it to a SERS spectra fitting problem and comparing our results to those from existing methods.

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