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Intermolecular Forces

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Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...

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Related Experiment Video

Updated: Apr 3, 2026

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Internal optical forces in plasmonic nanostructures.

T V Raziman, Olivier J F Martin

|September 15, 2015

Summary

This summary is machine-generated.

Computational study reveals strong internal optical forces in plasmonic nanostructures like antennas and rings. These forces, dependent on light and geometry, enable novel functionalities in nanophotonics.

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Last Updated: Apr 3, 2026

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Area of Science:

Nanophotonics
Computational Physics
Plasmonics

Background:

Plasmonic nanostructures exhibit unique optical properties.
Internal optical forces are crucial for nanophotonic device applications.

Purpose of the Study:

Investigate internal optical forces in plasmonic gap antennas, dolmen structures, and split rings.
Explain the origin and behavior of these forces based on induced polarization charges.

Main Methods:

Utilized computational methods to simulate optical forces.
Analyzed the influence of wavelength, polarization, and geometry on force dynamics.

Main Results:

Observed strong internal forces perpendicular to propagation direction.
Identified phenomena like lateral force reversal and optical pulling.
Characterized circular polarization-induced forces and torques.

Conclusions:

Understanding internal optical forces is key to new nanophotonic functionalities.
Mastering these forces in plasmonic nanostructures will drive innovation.