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Multifunctional and multi-output plasmonic meta-elements for integrated optical circuits.

Jiayuan Wang, Chuang Hu, Jiasen Zhang

|October 17, 2014

Summary

This summary is machine-generated.

A novel plasmonic meta-element (MPM) acts as both a plasmonic lens and array illuminator. This multifunctional device, fabricated using a phase-sieve method, shows promise for integrated optical circuits.

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Area of Science:

Plasmonics and Nanophotonics
Optical Metamaterials
Surface Physics

Background:

Surface plasmon polaritons (SPPs) are crucial for nanoscale light manipulation.
Developing multifunctional plasmonic elements is key for advanced optical devices.
Existing meta-elements often lack versatility and multi-output capabilities.

Purpose of the Study:

To propose and demonstrate a novel multifunctional plasmonic meta-element (MPM).
To enable simultaneous functions like plasmonic lensing and array illumination.
To explore applications in high-density integrated optical circuits.

Main Methods:

Development of a novel phase-sieve method utilizing in-plane interference.
Fabrication of a nonperiodic nanogroove array on a gold surface.
Validation using leakage radiation microscopy measurements.

Main Results:

Demonstration of an MPM functioning as a plasmonic lens (PL) and plasmonic array illuminator (PAI).
Fabrication of an MPM acting as two PLs with a π/4 intersection angle.
Experimental validation of the proposed MPM's functionalities.

Conclusions:

The proposed MPM offers multifunctional and multi-output capabilities for SPP waves.
The phase-sieve method enables precise control over nanogroove array design.
This work paves the way for advanced integrated optical circuits and devices.