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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 6 — Jun. 17, 2008

Comparison of Raman Spectrograph Throughput Using Two Commercial Systems: Transmissive Versus Reflective

Chad A. Lieber, Elizabeth M. Kanter, and Anita Mahadevan-Jansen

Applied Spectroscopy, Vol. 62, Issue 5, pp. 575-582 (2008)


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Abstract

A common goal of most Raman spectroscopists is the acquisition of clear Raman spectra in short integration times. It is paramount, then, that the hardware used in a Raman system be optimized for throughput, signal-to-noise ratio, and resolution. To this end, we performed a systematic comparison of two Raman spectrographs: the widely used Kaiser HoloSpec<sup>™</sup> and a relatively new commercial offering, the Raman Explorer<sup>™</sup> by Headwall Photonics. Both strong and weak Raman scattering samples were measured using various launching conditions. When resolution-matched, the throughputs of both spectrographs were found to be roughly similar over the central range of the fingerprint region (approximately 800 to 1140 cm<sup>−1</sup>, using 785 nm illumination), with the Raman Explorer<sup>™</sup> demonstrating a slight throughput advantage outside this range. Other factors are also considered such that end users may better select the optimum spectrograph for their particular application.

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Vol. 3, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Chad A. Lieber, Elizabeth M. Kanter, and Anita Mahadevan-Jansen, "Comparison of Raman Spectrograph Throughput Using Two Commercial Systems: Transmissive Versus Reflective," Appl. Spectrosc. 62, 575-582 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=as-62-5-575


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