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Title: Miniaturized spectrometer employing planar waveguides and grating couplers for chemical analysis

Abstract

Polymeric and metal oxide planar waveguides were used to demonstrate the potential of a miniature spectrometer. Multiwavelength light was transmitted through the substrate and coupled into the waveguide through a diffraction grating located at the substrate/waveguide interface. A second diffraction grating spatially dispersed the light propagated through the waveguide into component wavelengths for rapid analysis with a photodiode array detector. These results suggest that planar waveguides can be used to perform attenuated total internal reflection measurements in the visible and near-IR regions for chemical analysis of weak vibrational overtones and combination modes with effective path lengths of several millimeters. Keywords: Planar waveguide, internal reflectance, spectrometer, grating, thin film, polystyrene, tantalum pentoxide, photodiode array.

Authors:
; ;  [1]
  1. Battelle Pacific Northwest Laboratories, P.O. Box 999, Richland, Washington 99352 (US)
Publication Date:
OSTI Identifier:
5878741
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Journal Article
Journal Name:
Applied Optics; (USA)
Additional Journal Information:
Journal Volume: 29:31; Journal ID: ISSN 0003-6935
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; OPTICAL SPECTROMETERS; DESIGN; CHEMICAL ANALYSIS; GRATINGS; MINIATURIZATION; NEAR INFRARED RADIATION; POLYSTYRENE; TANTALUM OXIDES; THIN FILMS; VISIBLE RADIATION; WAVEGUIDES; CHALCOGENIDES; ELECTROMAGNETIC RADIATION; FILMS; INFRARED RADIATION; MATERIALS; MEASURING INSTRUMENTS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OXIDES; OXYGEN COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLYMERS; POLYOLEFINS; POLYVINYLS; RADIATIONS; REFRACTORY METAL COMPOUNDS; SPECTROMETERS; SYNTHETIC MATERIALS; TANTALUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 440600* - Optical Instrumentation- (1990-)

Citation Formats

Goldman, D S, White, P L, and Anheier, N. Miniaturized spectrometer employing planar waveguides and grating couplers for chemical analysis. United States: N. p., 1990. Web. doi:10.1364/AO.29.004583.
Goldman, D S, White, P L, & Anheier, N. Miniaturized spectrometer employing planar waveguides and grating couplers for chemical analysis. United States. doi:10.1364/AO.29.004583.
Goldman, D S, White, P L, and Anheier, N. Thu . "Miniaturized spectrometer employing planar waveguides and grating couplers for chemical analysis". United States. doi:10.1364/AO.29.004583.
@article{osti_5878741,
title = {Miniaturized spectrometer employing planar waveguides and grating couplers for chemical analysis},
author = {Goldman, D S and White, P L and Anheier, N},
abstractNote = {Polymeric and metal oxide planar waveguides were used to demonstrate the potential of a miniature spectrometer. Multiwavelength light was transmitted through the substrate and coupled into the waveguide through a diffraction grating located at the substrate/waveguide interface. A second diffraction grating spatially dispersed the light propagated through the waveguide into component wavelengths for rapid analysis with a photodiode array detector. These results suggest that planar waveguides can be used to perform attenuated total internal reflection measurements in the visible and near-IR regions for chemical analysis of weak vibrational overtones and combination modes with effective path lengths of several millimeters. Keywords: Planar waveguide, internal reflectance, spectrometer, grating, thin film, polystyrene, tantalum pentoxide, photodiode array.},
doi = {10.1364/AO.29.004583},
journal = {Applied Optics; (USA)},
issn = {0003-6935},
number = ,
volume = 29:31,
place = {United States},
year = {1990},
month = {11}
}