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Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
Published on: September 27, 2011
Light trapping and guidance in plasmonic nanocrystals
Maxim Sukharev1, Tamar Seideman
1Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA.
The Journal of Chemical Physics
|June 8, 2007
Summary
Researchers demonstrated light trapping and funneling in metallic nanoparticle arrays. This phenomenon, driven by collective plasmon resonance, allows for controlled light localization and spatial direction, enabling wavelength-sensitive light manipulation.
Area of Science:
- Plasmonics
- Nanophotonics
- Materials Science
Background:
- Periodic arrays of metallic nanoparticles can exhibit unique optical properties.
- Collective plasmon resonance is a key phenomenon in understanding light-matter interactions at the nanoscale.
Purpose of the Study:
- To illustrate the potential for light trapping and funneling in periodic metallic nanoparticle arrays.
- To demonstrate wavelength-sensitive control over light propagation using these nanostructures.
Main Methods:
- Utilizing periodic arrays of metallic nanoparticles.
- Investigating collective plasmon resonance phenomena.
- Employing hybrid arrays of varying structures and materials.
Main Results:
- Observed a controllable minimum in transmission spectra due to collective plasmon resonance.
- Demonstrated sharp vertical localization of incident plane waves.
- Showcased the ability to structure the eigenmode spectrum and introduce overlapping resonances.
Conclusions:
- Periodic metallic nanoparticle arrays offer a viable platform for light trapping and funneling.
- The collective plasmon resonance effect enables precise spatial control of light.
- Hybrid arrays provide a method for wavelength-sensitive light manipulation and direction.
