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Characterization of Anisotropic Leaky Mode Modulators for Holovideo

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Published on: March 19, 2016

Plasmonic mode-gap waveguides using hetero-metal films.

Sangjun Lee¹, Sangin Kim

¹School of Electrical and Computer Engineering, Ajou University, Suwon 443-749, Korea.

|February 23, 2010

Summary

We developed a new plasmonic mode-gap waveguide using hetero-metal films. This structure confines light tightly and reduces bending losses, potentially improving optical device integration.

Area of Science:

Photonics and Plasmonics
Materials Science
Optical Engineering

Background:

Surface plasmon-polariton (SPP) waveguides are crucial for miniaturizing optical devices.
Existing structures face challenges with confinement and bending losses, limiting integration density.

Purpose of the Study:

To propose and analyze a novel waveguide structure utilizing a hetero-metal film.
To demonstrate enhanced light confinement and reduced radiation loss in bent waveguides.

Main Methods:

Numerical analysis of waveguide propagation characteristics.
Utilizing a hetero-metal film with distinct plasma frequencies to create a plasmonic mode-gap (PMG).

Main Results:

Achieved tight horizontal confinement of long-range surface plasmon-polariton (LR-SPP) modes near the diffraction limit.

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Demonstrated significant suppression of radiation loss in waveguide bendings due to the PMG effect.

Conclusions:

The proposed PMG waveguide effectively confines LR-SPP modes.
This technology offers potential for higher integration densities in optical devices without increased propagation losses.