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Updated: May 10, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

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Published on: January 3, 2016

Three-dimensional nanolithography using light scattering from colloidal particles.

Xu A Zhang¹, Jonathan Elek, Chih-Hao Chang

¹Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA.

|June 7, 2013

Summary

This summary is machine-generated.

Researchers used light scattering from colloidal particles to create unique hollow nanostructures. These "nano-volcanoes" can trap nanoparticles and have potential applications in drug delivery and biotrapping.

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Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

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Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Published on: September 2, 2017

Area of Science:

Optics and Materials Science
Nanotechnology and Nanofabrication

Background:

Near-field optical patterns arise from light-colloid interactions.
Tailoring intensity distribution is key for 3D nanolithography.

Purpose of the Study:

To fabricate complex hollow nanostructures using light scattering from colloidal particles.
To explore the potential of these structures for nanomaterial trapping and functionalization.

Main Methods:

Illuminating a single colloidal sphere to generate a scattering pattern.
Capturing the scattering pattern in a nearby photoresist without external optical elements.
Modeling the nanostructure geometry based on light-particle interaction and scattered light distribution.

Main Results:

Successfully fabricated hollow nanostructures resembling "nano-volcanoes" with multiple shells, confined volumes, and single top openings.
Demonstrated the ability of these hollow nanostructures to trap 50 nm silica nanoparticles.
Established that nanostructure geometry is dependent on scattered light distribution.

Conclusions:

Colloidal elements alone can modulate optical intensity patterns for nanolithography.
The fabricated hollow nanostructures are suitable for trapping nanomaterials.
These structures offer potential for applications in controlled drug delivery and biotrapping.