Hybrid Metameterials Enable Fast Electrical Modulation Of Freely Propagating Terahertz Waves [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators: Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

We demonstrate fast electrical modulation of freely propagating THz waves at room temperature using hybrid metamaterial devices. the devices are planar metamaterials fabricated on doped semiconducor epitaxial layers, which form hybrid metamaterial - Schottky diode structures. With an applied ac voltage bias, we show modulation of THz radiation at inferred frequencies over 2 MHz. The modulation speed is limited by the device depletion capacitance which may be reduced for even faster operation.

Report Numbers

E 1.99:la-ur-08-04538
E 1.99: la-ur-08-4538
la-ur-08-4538
la-ur-08-04538

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Note

Published through SciTech Connect.
01/01/2008.
"la-ur-08-04538"
" la-ur-08-4538"
Applied Physics Letters ISSN 0003-6951; APPLAB FT
Chen, Hou-tong; O' Hara, John F; Taylor, Antoinette J.

Funding Information

AC52-06NA25396

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