Abstract
We report metamaterial terahertz (THz) bandpass filters with tunable dual-band selectivity. The shift in the center frequency of the device is achieved by actively modifying the effective length of the resonators. This was realized by introducing vanadium dioxide (VO2) bridges interconnecting specific regions of each resonator. Raising the temperature across the phase transition shifted the resonance frequency by 2% due to changes in the electrical conductivity of the VO2. Measured THz transmission response of the proposed dual-band filter was in good correspondence with simulations.
Original language | English (US) |
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Pages (from-to) | 2382-2384 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 38 |
Issue number | 14 |
DOIs | |
State | Published - Jul 15 2013 |
Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics