Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3653242
Keywords
damping; metamaterials; niobium compounds; self-induced transparency; superconducting thin films; type II superconductors
Categories
Funding
- MOST of China [2011CBA00107, 2007CB310404]
- National Natural Science Foundation [61071009, 61027008]
- Fundamental Research Funds for the Central Universities [021014360004]
- Specialized Research Fund for Doctoral Program of Higher Education [20090091110040]
Ask authors/readers for more resources
We designed and fabricated planar terahertz (THz) metamaterials made from superconducting NbN films to mimic electromagnetically induced transparency (EIT) system. They are characterized using THz time domain spectroscopy over a temperature range from 8 to 300 K. High transmittance and large delay-bandwidth product at transparency window are demonstrated, which mainly arise from the enhanced coupling and decreased damping in superconducting state. The EIT-like spectral response could be tuned in a wide frequency range. By applying two dark resonators with different resonance frequencies coupled with a radiative resonator, we experimentally demonstrated the planar metamaterials mimicking four-level EIT system. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3653242]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available