22 February 2002 Field-portable AOTF-based monitor technology for environmental sensing
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Proceedings Volume 4577, Vibrational Spectroscopy-based Sensor Systems; (2002) https://doi.org/10.1117/12.455723
Event: Environmental and Industrial Sensing, 2001, Boston, MA, United States
Abstract
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
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Brian M. Cullum, Brian M. Cullum, Joel Mobley, Joel Mobley, Alan L. Wintenberg, Alan L. Wintenberg, R. A. Maples, R. A. Maples, David L. Stokes, David L. Stokes, Tuan Vo-Dinh, Tuan Vo-Dinh, } "Field-portable AOTF-based monitor technology for environmental sensing", Proc. SPIE 4577, Vibrational Spectroscopy-based Sensor Systems, (22 February 2002); doi: 10.1117/12.455723; https://doi.org/10.1117/12.455723
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