Related Experiment Video
Updated: Feb 6, 2026
08:32
Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
Published on: May 14, 2016
13.0K
Surface lattice resonances based on parallel coupling in metal-insulator-metal stacks
Optics Express
|August 19, 2018
Summary
This study demonstrates ultra-narrowband resonance in coating-metal-insulator-metal (MIM) structures by utilizing delocalized parallel coupling. This advancement overcomes metal losses, enabling high-performance plasmonic devices.
Area of Science:
- Plasmonics
- Nanophotonics
- Metamaterials
Background:
- Localized Surface Plasmon Resonances (LSPRs) in metal-insulator-metal (MIM) structures offer filter-free operation, small size, and low power consumption for narrowband emitters/absorbers.
- High ohmic losses in metals traditionally limit the realization of ultra-narrowband resonances in plasmonic devices.
- Parallel coupling of LSPR and lattice diffraction in metallic particle arrays shows promise for far-field emission applications due to environmental tolerance.
Purpose of the Study:
- To stimulate delocalized parallel coupling for achieving ultra-narrowband resonance in coating-MIM structures at mid-infrared frequencies.
- To investigate the role of nanometer-scale coatings in modulating coupled efficiency for enhanced plasmonic performance.
Main Methods:
- Theoretical stimulation of delocalized parallel coupling within a coating-MIM structure.
- Utilizing hundreds of nanometers of coating material to tune the coupling efficiency and resonance characteristics.
Main Results:
- Achieved ultra-narrowband resonance through delocalized parallel coupling in the coating-MIM structure.
- Demonstrated effective modulation of coupled efficiency by adjusting coating thickness.
Conclusions:
- The developed coating-MIM structure successfully overcomes limitations of ohmic losses for ultra-narrowband plasmonic applications.
- This approach significantly enhances the potential of MIM structures for ultra-high performance applications in the mid-infrared spectrum.
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