Field-portable AOTF-based monitor technology for environmental sensing

Journal Article (Journal Article)

The development of a field-portable Raman instrument for environmental analyses is described. It is based on the use of a near-infrared frequency-stabilized diode laser for excitation, an acousto-optic tunable filter for wavelength selection, and an avalanche photodiode for detection. Evaluation of this instrument for the monitoring of environmentally important species will be discussed as well as its ability to be operated in room light without significantly increasing the background signal. In addition, we will also describe a baseline removal procedure based on second derivative approach that simplifies and increases the accuracy of the instrument's automated identification algorithm.

Full Text

Duke Authors

Cited Authors

  • Cullum, BM; Mobley, J; Wintenberg, AL; Maples, RA; Stokes, DL; Vo-Dinh, T

Published Date

  • January 1, 2001

Published In

Volume / Issue

  • 4577 /

Start / End Page

  • 65 - 75

International Standard Serial Number (ISSN)

  • 0277-786X

Digital Object Identifier (DOI)

  • 10.1117/12.455723

Citation Source

  • Scopus