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Updated: Jun 1, 2026
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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Tailored resonator coupling for modifying the terahertz metamaterial response.
Dibakar Roy Chowdhury1, Ranjan Singh, Matthew Reiten
1MPA-CINT, Los Alamos National Laboratory, PO Box 1663, MS K771, Los Alamos, New Mexico 87545, USA. dibakar@lanl.gov
Optics Express
|June 7, 2011
Summary
We studied terahertz metamaterial split-ring resonators (SRRs) and found that coupling shifts their resonances. Unit cell design modifications, not SRR arrangement, tune electromagnetic response for robust metamaterial designs.
Area of Science:
- Physics
- Materials Science
- Electrical Engineering
Background:
- Terahertz metamaterials, particularly split-ring resonators (SRRs), are crucial for manipulating electromagnetic waves.
- Understanding the coupling mechanisms in paired metamaterial structures is essential for advanced device design.
Purpose of the Study:
- To investigate the coupling effects between laterally paired terahertz metamaterial split-ring resonators (SRRs).
- To explore methods for tuning the electromagnetic response of metamaterials through design modifications.
Main Methods:
- Experimental measurements of coupled SRR structures.
- Numerical simulations to analyze the coupling phenomena and resonance shifts.
- Analysis of inductive-capacitive (LC) resonances under varying coupling conditions.
Main Results:
- Coupling between paired SRRs modifies inductive-capacitive (LC) resonances, causing red or blue-shifts.
- Tuning of electric and magnetic coupling parameters is achievable via unit cell design modifications.
- Demonstrated that SRR orientation or density are not the primary tuning factors.
Conclusions:
- Unit cell level design modifications offer precise control over metamaterial electromagnetic responses.
- Identified new degrees of freedom for tuning metamaterial properties.
- Provides a pathway towards developing more robust and tunable metamaterial designs for terahertz applications.
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