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Title: Omnidirectional optical waveguide

In one embodiment, a system includes a scintillator material; a detector coupled to the scintillator material; and an omnidirectional waveguide coupled to the scintillator material, the omnidirectional waveguide comprising: a plurality of first layers comprising one or more materials having a refractive index in a first range; and a plurality of second layers comprising one or more materials having a refractive index in a second range, the second range being lower than the first range, a plurality of interfaces being defined between alternating ones of the first and second layers. In another embodiment, a method includes depositing alternating layers of a material having a relatively high refractive index and a material having a relatively low refractive index on a substrate to form an omnidirectional waveguide; and coupling the omnidirectional waveguide to at least one surface of a scintillator material.
Inventors:
;
Issue Date:
OSTI Identifier:
1279971
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
Patent Number(s):
9,405,083
Application Number:
13/898,393
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2013 May 20
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Works referenced in this record:

Performance of multiclad scintillating and clear waveguide fibers read out with visible light photon counters
journal, June 1994
  • Baumbaugh, B.; Erdman, J.; Gaskell, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 345, Issue 2, p. 271-278
  • DOI: 10.1016/0168-9002(94)91001-4

An X-ray area detector with scintillating glass fiber optics
journal, December 1992
  • Ottonello, P.; Rottigni, G. A.; Zanella, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 323, Issue 1-2, p. 485-488
  • DOI: 10.1016/0168-9002(92)90337-4