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Shifted excitation Raman difference spectroscopy (SERDS) can provide effective, chemically specific information on fluorescent samples. However, the restricted ability for fast alternating detection (usually B) ratio two times higher than that achieved with conventional CCD read-out SERDS-SORS. The novel approach overcomes fundamental limitations of conventional CCDs. In conjunction with the inherent capability of the charge-shifting lock-in technique to suppress rapidly varying ambient light interference demonstrated by us earlier it is expected to be particularly beneficial with heterogeneous fluorescent samples in field applications.

Original publication

DOI

10.1177/0003702819859352

Type

Journal

Applied spectroscopy

Publication Date

11/2019

Volume

73

Pages

1265 - 1276

Addresses

Central Laser Facility, Research Complex at Harwell, STFC Rutherford Appleton Laboratory, UKRI, Oxford, UK.