Tunable surface plasmon devices
Abstract
A tunable extraordinary optical transmission (EOT) device wherein the tunability derives from controlled variation of the dielectric constant of a semiconducting material (semiconductor) in evanescent-field contact with a metallic array of sub-wavelength apertures. The surface plasmon resonance wavelength can be changed by changing the dielectric constant of the dielectric material. In embodiments of this invention, the dielectric material is a semiconducting material. The dielectric constant of the semiconducting material in the metal/semiconductor interfacial region is controllably adjusted by adjusting one or more of the semiconductor plasma frequency, the concentration and effective mass of free carriers, and the background high-frequency dielectric constant in the interfacial region. Thermal heating and/or voltage-gated carrier-concentration changes may be used to variably adjust the value of the semiconductor dielectric constant.
- Inventors:
-
- Rio Rancho, NM
- Lowell, MA
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1023917
- Patent Number(s):
- 8009356
- Application Number:
- 12/137,882
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Shaner, Eric A, and Wasserman, Daniel. Tunable surface plasmon devices. United States: N. p., 2011.
Web.
Shaner, Eric A, & Wasserman, Daniel. Tunable surface plasmon devices. United States.
Shaner, Eric A, and Wasserman, Daniel. Tue .
"Tunable surface plasmon devices". United States. https://www.osti.gov/servlets/purl/1023917.
@article{osti_1023917,
title = {Tunable surface plasmon devices},
author = {Shaner, Eric A and Wasserman, Daniel},
abstractNote = {A tunable extraordinary optical transmission (EOT) device wherein the tunability derives from controlled variation of the dielectric constant of a semiconducting material (semiconductor) in evanescent-field contact with a metallic array of sub-wavelength apertures. The surface plasmon resonance wavelength can be changed by changing the dielectric constant of the dielectric material. In embodiments of this invention, the dielectric material is a semiconducting material. The dielectric constant of the semiconducting material in the metal/semiconductor interfacial region is controllably adjusted by adjusting one or more of the semiconductor plasma frequency, the concentration and effective mass of free carriers, and the background high-frequency dielectric constant in the interfacial region. Thermal heating and/or voltage-gated carrier-concentration changes may be used to variably adjust the value of the semiconductor dielectric constant.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {8}
}
Works referenced in this record:
Electrically tunable extraordinary optical transmission gratings
journal, October 2007
- Shaner, E. A.; Cederberg, J. G.; Wasserman, D.
- Applied Physics Letters, Vol. 91, Issue 18
All-optical switching of the transmission of electromagnetic radiation through subwavelength apertures
journal, January 2005
- Janke, C.; Rivas, J. Gómez; Bolivar, P. Haring
- Optics Letters, Vol. 30, Issue 18
Midinfrared doping-tunable extraordinary transmission from sub-wavelength Gratings
journal, May 2007
- Wasserman, D.; Shaner, E. A.; Cederberg, J. G.
- Applied Physics Letters, Vol. 90, Issue 19