Contact: Breehan Gerleman Lucchesi
Caption: A team led by Ames Laboratory physicists demonstrated broadband, gapless terahertz emission (red line) from split-ring resonator metamaterials (background) in the telecomm wavelength. The THz emission spectra exhibit significant enhancement at magnetic-dipole resonance of the metamaterials emitter (shown in inset image). This approach has potential to generate gapless spectrum covering the entire THz band, which is key to developing practical THz technologies and to exploring fundamental understanding of optics.
Credit: US Department of Energy's Ames Laboratory
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Related news release: Highly efficient broadband terahertz radiation from metamaterials