Optical bistability of planar metal/dielectric nonlinear nanostructures

AbstractWe study theoretically a nonlinear response of the planar metal/dielectric nanostructures constituted from periodical array of ultra thin silver layers and the layers of Kerr-like nonlinear dielectric. We predict hysteresis-type dependences of the components of the tensor of effective dielectric permittivity on the field intensity allowing the change in material transmission properties from transparent to opaque and back at extremely low intensities of the light. It makes possible to control the light by light in all-optical nanoscale devices and circuits.

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Clausius-Mossotti Approximation for Nonlinear Composites with Coated Ellipsoidal Particles

MRS Proceedings ◽

10.1557/proc-737-f3.12 ◽

2002 ◽

Vol 737 ◽

Author(s):

Anatoliy O. Pinchuk

Keyword(s):

Dielectric Permittivity ◽

Ellipsoidal Particle ◽

Nonlinear Dielectric ◽

Host Medium ◽

Ellipsoidal Particles ◽

Dielectric Permittivity Tensor ◽

Dense Suspensions ◽

Metallic Shell ◽

Effective Dielectric Permittivity ◽

Nonlinear Composites

ABSRTACT:An effective nonlinear dielectric permittivity of a heterogeneous composite structure consisting of coated ellipsoidal nonlinear nanoparticles embedded in a linear host medium has been theoretically studied. An expression for the effective dielectric permittivity tensor of such a system has been derived following the Clausius-Mossotti approximation. The conditions for the existence of electromagnetic bistability phenomenon in a single coated ellipsoidal particle with a nonlinear core and a metallic shell have been obtained. The numerical results show more prominent bistability phenomenon in more dense suspensions of nonlinear heterogeneous ellipsoids.

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Low Power, High Speed, All-Optical Logic Gates Basedon Optical Bistability in Graphene-ContainingCompact Microdisk Resonators

Applied Optics ◽

10.1364/ao.431610 ◽

2021 ◽

Author(s):

Peyman Keshtkar ◽

Mehdi Miri ◽

Navid Yasrebi

Keyword(s):

Low Power ◽

High Speed ◽

Optical Bistability ◽

Logic Gates ◽

Optical Logic ◽

Optical Logic Gates ◽

All Optical ◽

Microdisk Resonators

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Polydiacetylene-Based Directional Couplers And Grating Couplers: Linear And Nonlinear Transmission Properties And All-Optical Switching Phenomena

10.1117/12.962129 ◽

1990 ◽

Cited By ~ 16

Author(s):

Paul D. Townsend ◽

Gregory L. Baker ◽

J. L. Jackel ◽

J. A. Shelburne III ◽

S. Etemad

Keyword(s):

Optical Switching ◽

Directional Couplers ◽

Grating Couplers ◽

Nonlinear Transmission ◽

Transmission Properties ◽

All Optical ◽

Linear And Nonlinear ◽

All Optical Switching

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Application of Multiphase Dielectric Mixing Models for Understanding the Effective Dielectric Permittivity of Frozen Soils

Vadose Zone Journal ◽

10.2136/vzj2012.0060 ◽

2013 ◽

Vol 12 (1) ◽

pp. vzj2012.0060 ◽

Cited By ~ 31

Author(s):

Hailong He ◽

Miles Dyck

Keyword(s):

Dielectric Permittivity ◽

Mixing Models ◽

Frozen Soils ◽

Effective Dielectric Permittivity

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Energy tunneling through narrow waveguide channel and design of small antennas

Serbian Journal of Electrical Engineering ◽

10.2298/sjee1101063m ◽

2011 ◽

Vol 8 (1) ◽

pp. 63-71

Author(s):

Miranda Mitrovic ◽

Branka Jokanovic

Keyword(s):

Wave Propagation ◽

Dielectric Permittivity ◽

Transmission Coefficient ◽

Rectangular Waveguide ◽

Narrow Channel ◽

Waveguide Channel ◽

Small Antennas ◽

Field Density ◽

Effective Dielectric Permittivity ◽

Small Antenna

In this paper we investigate the conditions for energy tunneling through narrow channel obtained by reducing the height of rectangular waveguide. Tunneling of the energy occurs at the frequency for which the effective dielectric permittivity of the channel becomes equal to zero, so it can be treated as an ENZ (epsilon-near-zero) metamaterial. We investigated how geometry of the channel and dielectric permittivity affect the transmission coefficient and field density in the channel. Adding slots in the channel, which are placed orthogonally to the wave propagation, we designed a small antenna with directivity of 5.44 dBi at the frequency of 3 GHz.

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