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Confocal Fluorescence Microscopy

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Related Experiment Video

Updated: Aug 4, 2025

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Published on: February 27, 2013

Mapping complex profiles of light intensity with interferometric lithography.

Joseph Holmes¹, Mi Zhang², Tine Greibe²

¹Physics Department, Indiana University Bloomington IN 47405 USA.

Nanoscale Advances

|March 31, 2023

Summary

This summary is machine-generated.

Mapping electromagnetic fields near nanostructured metal surfaces is challenging. This study accurately maps light intensity patterns from multiple apertures, creating 3D replicas for nanophotonic applications.

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Last Updated: Aug 4, 2025

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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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Published on: January 28, 2019

Area of Science:

Physics
Nanotechnology
Optics

Background:

Accurate mapping of electromagnetic fields near nanostructured metal surfaces is crucial for nanophotonic applications like sensing and photovoltaics.
Studying non-periodic, extended patterns presents numerical challenges in solving Maxwell's equations.

Purpose of the Study:

To faithfully map complex light intensity patterns from closely-spaced multiple apertures in a metal film.
To achieve sub-wavelength resolution in mapping field distributions from near-field to far-field.
To investigate the role of metal film permittivity in shaping isointensity surfaces.

Main Methods:

Numerical simulations solving Maxwell's equations.
Experimental validation of simulated field distributions.
Generation of 3D solid replicas of isointensity surfaces.

Main Results:

Complex light intensity patterns were accurately mapped with sub-wavelength resolution.
The mapping extended from near-field to far-field observations.
Metal film permittivity was shown to significantly influence the shaping of isointensity surfaces.

Conclusions:

The developed method allows for faithful mapping of electromagnetic fields near nanostructured metal surfaces.
The study confirms the significant impact of metal permittivity on field distribution.
This technique provides accurate 3D spatial field distribution data essential for nanophotonic device design and analysis.