Surface-Plasmono Dielectric-Polaritonic (SPDP) Devices and Systems

Technology #13133

Questions about this technology? Ask a Technology Manager

Download Printable PDF

Image Gallery
 FIG. 1A is a schematic view of a first example Surface-PlasmonoDielectric-Polaritonic system (SPDP) provided by the invention, including a homogenous plasmonic material region adjacent to a layered dielectric region, configured for implementing a selected dispersion relation;  FIG. 1B is a schematic view of a second example Surface-PlasmonoDielectric-Polaritonic system (SPDP) provided by the invention, including a homogenous plasmonic material region adjacent to an inhomogeneous and continuous layered dielectric region, configured for implementing a selected dispersion relation;  FIG. 1C is a schematic view of a further example Surface-PlasmonoDielectric-Polaritonic system (SPDP) provided by the invention, including a homogenous dielectric region adjacent to a layered plasmonic material region, configured for implementing a selected dispersion relation FIG. 1D is a schematic view of a further example Surface-PlasmonoDielectric-Polaritonic system (SPDP) provided by the invention, including a homogenous dielectric region adjacent to an inhomogeneous, continuous plasmonic material region, configured for implementing a selected dispersion relation;  FIG. 1E is a schematic view of a further example Surface-PlasmonoDielectric-Polaritonic system (SPDP) provided by the invention, including a layered dielectric region adjacent to a layered plasmonic material region, configured for implementing a selected dispersion relation;  FIG. 1F is a schematic view of a further example Surface-PlasmonoDielectric-Polaritonic system (SPDP) provided by the invention, including an inhomogeneous, continuous dielectric region adjacent to an inhomogeneous, continuous plasmonic material region, configured for implementing a selected dispersion relation FIG. 3A is a schematic end view of an example SPDP fiber-structure provided by invention, including a plasmonic material core around which is provided a layered dielectric region, configured for implementing a selected dispersion relation;  FIG. 3B is a schematic end view of an example SPDP fiber-structure provided by invention, including a dielectric material core around which is provided a layered plasmonic material region, configured for implementing a selected dispersion relation;  FIG. 4 is a schematic view of an example Surface-PlasmonoDielectric-Polaritonic system (SPDP) provided by the invention, including a homogenous plasmonic material region adjacent to a layered dielectric region, configured for implementing a selected dispersion relation, with the dielectric region partitioned into nanoparticle regionsFIGS. 5A-5B are plots of the dispersion relation and group velocity dispersion, respectively, that were characteristic of a first example SPDP system designed with a structure like that of FIG. 1A FIGS. 6A-6B are plots of the dispersion relation and group velocity dispersion, respectively, that were characteristic of a second SPDP system designed with a structure like that of FIG. 1A;  FIGS. 7A-7B are plots of the dispersion relation and group velocity dispersion, respectively, that were characteristic of a third SPDP system designed with a structure like that of FIG. 1A FIGS. 8A-8B are plots of the dispersion relation and group velocity dispersion, respectively, that were characteristic of a fourth SPDP system designed with a structure like that of FIG. 1A;  FIGS. 9A-9B are plots of the dispersion relation and group velocity dispersion, respectively, that were characteristic of a fifth SPDP system designed with a structure like that of FIG. 1A FIGS. 10A-10B are plots of the dispersion relation and group velocity dispersion, respectively, that were characteristic of a sixth SPDP system designed with a structure like that of FIG. 2; and  FIGS. 11A-11B are plots of the dispersion relation and group velocity dispersion, respectively, that were characteristic of a seventh SPDP system designed with a structure like that of FIG. 2
Categories
Inventors
Professor John Joannopoulos
Institute for Soldier Nanotechnologies, MIT
External Link (ab-initio.mit.edu)
Professor Marin Soljacic
Department of Physics, MIT
External Link (www.mit.edu)
Aristeidis Karalis
Managed By
Jim Freedman
MIT Technology Licensing Officer - Chemicals, Instruments, Consumer Products
Patent Protection

Surface-PlasmonoDielectric-polaritonic devices and systems

US Patent 8,472,771

Applications

This technology suites a vast range of photonic and optoelectronic devices and systems, such as optical delay lines, optical buffers, optical memories, light emitting diodes, solar cells, thermovoltaic devices, and lasers.

Problem Addressed

The main issue with modern photonic systems is the necessity to operate as a substantially perfect light-guiding system by supporting, over a large frequency bandwidth, subwavelength modes of small velocity and small attenuation, both substantially devoid of frequency dispersion. 

Also, many important modern optical systems, in particular those requiring slow or stopped subwavelength light, can be implemented only with suboptimal, dispersion-limited operation.

Technology

This invention provides a linear, passive material system.  The structure includes a plasmonic material region and a dielectric material region, disposed adjacent to a selected surface of the plasmonic material region. At least one of the plasmonic material region and the dielectric material region have a dielectric permittivity distribution that is specified as a function of depth through the corresponding material region.

Advantages

  • Enables prespecified tailoring of the optical dispersion relation of the system to achieve, for a supported surface, plasmon polariton, a desired propagation characteristic
  • Resulting from permittivity distribution, the invention enables customization of aspects of a dispersion relation to obtain prespecified propagation SPP characteristics