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Title: Waveguide-based optical chemical sensor

Abstract

The invention provides an apparatus and method for highly selective and sensitive chemical sensing. Two modes of laser light are transmitted through a waveguide, refracted by a thin film host reagent coating on the waveguide, and analyzed in a phase sensitive detector for changes in effective refractive index. Sensor specificity is based on the particular species selective thin films of host reagents which are attached to the surface of the planar optical waveguide. The thin film of host reagents refracts laser light at different refractive indices according to what species are forming inclusion complexes with the host reagents.

Inventors:
 [1];  [2];  [3]
  1. Ranchos de Taos, NM
  2. Los Alamos, NM
  3. Tucson, AZ
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM; University of California
Sponsoring Org.:
USDOE
OSTI Identifier:
902826
Patent Number(s):
7,190,851
Application Number:
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM) LANL
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Grace, Karen M, Swanson, Basil I, and Honkanen, Seppo. Waveguide-based optical chemical sensor. United States: N. p., 2007. Web.
Grace, Karen M, Swanson, Basil I, & Honkanen, Seppo. Waveguide-based optical chemical sensor. United States.
Grace, Karen M, Swanson, Basil I, and Honkanen, Seppo. Tue . "Waveguide-based optical chemical sensor". United States. doi:. https://www.osti.gov/servlets/purl/902826.
@article{osti_902826,
title = {Waveguide-based optical chemical sensor},
author = {Grace, Karen M and Swanson, Basil I and Honkanen, Seppo},
abstractNote = {The invention provides an apparatus and method for highly selective and sensitive chemical sensing. Two modes of laser light are transmitted through a waveguide, refracted by a thin film host reagent coating on the waveguide, and analyzed in a phase sensitive detector for changes in effective refractive index. Sensor specificity is based on the particular species selective thin films of host reagents which are attached to the surface of the planar optical waveguide. The thin film of host reagents refracts laser light at different refractive indices according to what species are forming inclusion complexes with the host reagents.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 13 00:00:00 EDT 2007},
month = {Tue Mar 13 00:00:00 EDT 2007}
}

Patent:

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