Capabilities of a charge-coupled device with enhanced red responsivity for use in Raman spectroscopy

Robert B. Bilhorn; Nancy S. Ferris

doi:10.1117/12.22906

1 November 1990 Capabilities of a charge-coupled device with enhanced red responsivity for use in Raman spectroscopy

Robert B. Bilhorn, Nancy S. Ferris

Proceedings Volume 1336, Raman and Luminescence Spectroscopies in Technology II; (1990) https://doi.org/10.1117/12.22906
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

The performance of a slow-scan camera system using a silicon CCD fabricated specifically to have good performance in th near-rn a detector for Raman spectroscopy is described. The capabilities of the red-enhanced CCD for producing high-quality spectra with red excitation wavelengths at moderate laser powers and relatively short integration times are demonstrated using benzoic acid. The SNR performance is compared to a conventional CCD and an intensified photodiode array. Utility of the red-enhanced CCD system for a variety of applications is demonstrated with near-JR examples of resonance Raman, SERS, and conventional Raman with a low-power source. Problems associated with the sensitivity of CCDs in general, and the red-enhanced CCD in particular, to highenergy particles are described. Methods for minimizing the problem by adding shielding, using only the illuminated part of the detector, using multiple exposures, and using the minimum amount of binning necessary are presented.

Citation Download Citation

Robert B. Bilhorn and Nancy S. Ferris "Capabilities of a charge-coupled device with enhanced red responsivity for use in Raman spectroscopy", Proc. SPIE 1336, Raman and Luminescence Spectroscopies in Technology II, (1 November 1990); https://doi.org/10.1117/12.22906

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