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Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

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Published on: May 28, 2016

Deterministic nanoantenna array design for stable plasmon-enhanced harmonic generation.

Tae-In Jeong¹, Dong Kyo Oh², San Kim¹

¹Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan 46241, Republic of Korea.

Nanophotonics (Berlin, Germany)

|December 5, 2024

Summary

This summary is machine-generated.

Designing plasmonic nanoantenna arrays with a reduced ratio of ambiguity (ROA) enhances the stability of third-harmonic generation (THG). This method improves the reliability of plasmon-enhanced nonlinear optical devices and sensors.

Keywords:

nanophotonics nonlinear optics plasmonic field enhancement third-harmonic generation

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Area of Science:

Nanophotonics
Nonlinear Optics
Plasmonics

Background:

Plasmonic nanoantennas enhance nonlinear optical processes by confining light at the nanoscale.
Nanoantenna arrays increase harmonic emission, but beam inhomogeneity affects yield stability.

Purpose of the Study:

To develop a method for designing nanoantenna arrays to stabilize plasmon-enhanced third-harmonic generation (THG).
To reduce instability in THG yield caused by spatial beam inhomogeneity.

Main Methods:

Proposed a deterministic design method for nanoantenna array density.
Introduced the ratio of ambiguity (ROA) to quantify boundary vs. total nanoantennas.
Correlated ROA with the coefficient of variation of THG yield enhancement.

Main Results:

Reduced ROA leads to decreased variation in THG yield.
Spatial beam inhomogeneity causes power instability in THG.
The proposed design method effectively increases THG stability.

Conclusions:

Designing nanoantenna arrays with a lower ROA enhances the stability of plasmon-enhanced THG.
This approach is beneficial for developing reliable nonlinear optical devices and sensors.
The method addresses beam position-dependent yield fluctuations for improved performance.