Manipulating light using charged nano-particles suspended in an electric field

Etai Rosenkrantz, Shlomi Arnon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The theory of the scattering of electro-magnetic radiation by a nano-particle (NP) has been developed intensively during the last decades. Recent developments in this theory encompass the scenario of the interaction between a charged sphere and electromagnetic radiation. One of the interesting outcomes of this new development indicates that the extinction and scattering of a propagating light beam as a result of a charged sphere in the propagation path is higher than for a neutral sphere. We would like to use this phenomenon in order to manipulate light for applications such as a variable attenuator or an optical filter. The scheme under consideration comprises charged NPs located between two plates of capacitor. The NP position is controlled by the capacitor voltage. The NPs are also subject to gravitational force. Different positions of the NP provide different values of attenuation. In this paper we derive a mathematical model to describe the interaction between the propagating light and charged NP in the proposed scheme. Our results indicate that for the given parameters 10dB variable attenuation is achievable.

Original languageEnglish
Title of host publication2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Pages433-436
Number of pages4
DOIs
StatePublished - 1 Dec 2008
Event2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008 - Eilat, Israel
Duration: 3 Dec 20085 Dec 2008

Publication series

NameIEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings

Conference

Conference2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Country/TerritoryIsrael
CityEilat
Period3/12/085/12/08

Keywords

  • Attenuation
  • Modulation
  • Nano-particle
  • Scattering
  • Switch

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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