Hybrid Dielectric/Surface Plasmon Polariton Waveguide
P. David Flammer
Summary: A novel hybrid dielectric/Surface Plasmon Polariton waveguide design
Description: The invention provides a hybrid dielectric/Surface Plasmon Polariton (SPP)
waveguide that can be used in either a single mode, single polarization waveguide, or in a
multi-mode. When used as a single mode, the devise allows for control of propagation and
confinement. Gratings may be used for coupling light into and out of the modes or for use as
mirrors in the mode. When used in a multi-mode, energy is effectively transferred back and
forth between the dielectric waveguide and metal surface. This improves on standard SPP
modes, yielding longer range propagation along with high intensity near the metal surface at
decisive location. It can be made to function for wavelengths from the visible to far-infrared,
and potentially even at longer wavelengths (limited by surface roughness).
Main Advantages of this Invention
 Efficiently couples light into the waveguide structure, lowering diffractive losses
 Overcomes the problem that as the field is concentrated, losses go up and propagation
lengths go down.
Potential Areas of Application
 CCD Cameras
 3D imaging
 Electro-optic materials
 Optical modulators
 Telecommunications optic
 Bio-sensors
ID number: 8003
Intel ectual Property Status: US 8,238,702
Publication: P.D. Flammer et al. Optics Express,
(a) Schematic of cross-section of structure geometry and (b)
2007, 15, 7984. (Available upon request.)
Experimental and FEM transmission spectrum.
Opportunity: We are seeking an exclusive or non-exclusive licensee for marketing,
manufacturing, and sale of this technology.
For more information contact:
William Vaughan, Director of Technology Transfer
Colorado School of Mines, 1500 Illinois Street, Guggenheim Hall Suite 314, Golden, CO 80401
Phone: 303-384-2555; e-mail: wvaughan@mines.edu