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Related Experiment Video

Updated: Apr 19, 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

Near-Field Gain and Far-Field Control via a Plasmonic Time Crystal Slab.

Jaime E Sustaeta-Osuna¹, Thomas F Allard¹, Francisco J García-Vidal¹

¹Universidad Autónoma de Madrid, Universidad Autónoma de Madrid, Departamento de Física Teórica de la Materia Condensada, E-28049 Madrid, Spain and Condensed Matter Physics Center (IFIMAC), E-28049 Madrid, Spain.

Physical Review Letters

|April 17, 2026

Summary

Time-varying media alter light-matter interactions. Plasmonic time crystals enable near-field gain, suppressing losses and causing strong far-field radiation with 100% power oscillations, controlling light-matter dynamics.

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Published on: July 8, 2013

Area of Science:

Optics and Photonics
Condensed Matter Physics
Materials Science

Background:

Light-matter interactions are fundamental to optics.
Time-varying media can significantly modify these interactions.
Plasmonic materials offer unique light-manipulation properties.

Purpose of the Study:

Investigate light-matter interactions with plasmonic time crystals.
Explore the role of temporal modulation in plasmonic systems.
Identify novel mechanisms for controlling light propagation and energy transfer.

Main Methods:

Theoretical study of a harmonic electric dipole interacting with a plasmonic time crystal slab.
Analysis of near-field gain and far-field radiation phenomena.
Examination of parametric resonance conditions and their effects.

Main Results:

Temporal modulation of plasma frequency induces near-field gain.
The dipole absorbs energy, suppressing nonradiative losses.
Parametric resonance leads to strong far-field radiation.
100% oscillations in radiated power observed up to 10^3 times the epsilon-near-zero wavelength.

Conclusions:

Time-varying plasmonic systems offer new avenues for light control.
Near-field gain and enhanced radiation are key phenomena.
This work reveals a novel mechanism for manipulating light-matter interactions.