The authors present a spectroscopic analysis of a planar split-ring-resonator (SRR) medium at terahertz frequencies, quantitatively characterizing the associated magnetic resonance. Experimental quantification at terahertz and infrared frequencies of metamaterial optical constants has been primarily absent, largely due to the difficulty of collecting phase information at these frequencies. In this letter, the authors circumvent the need for phase information in the characterization by acquiring the power transmitted through the metamaterial at a series of oblique angles, and relating the multiangle data set to the effective permittivity and permeability through the Fresnel expressions. The resulting measurements reveal the expected resonant permeability of the SRR which exhibits a range of negative values, the minimum value being at .
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26 February 2007
Research Article|
March 02 2007
Quantitative investigation of a terahertz artificial magnetic resonance using oblique angle spectroscopy
T. Driscoll;
T. Driscoll
a)
Department of Physics,
University of California
, San Diego, La Jolla, California 92093
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G. O. Andreev;
G. O. Andreev
Department of Physics,
University of California
, San Diego, La Jolla, California 92093
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D. N. Basov;
D. N. Basov
Department of Physics,
University of California
, San Diego, La Jolla, California 92093
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S. Palit;
S. Palit
Department of Electrical and Computer Engineering,
Duke University
, Durham, North Carolina 27708
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Tong Ren;
Tong Ren
Department of Electrical and Computer Engineering,
Duke University
, Durham, North Carolina 27708
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Jack Mock;
Jack Mock
Department of Electrical and Computer Engineering,
Duke University
, Durham, North Carolina 27708
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Sang-Yeon Cho;
Sang-Yeon Cho
Department of Electrical and Computer Engineering,
Duke University
, Durham, North Carolina 27708
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Nan Marie Jokerst;
Nan Marie Jokerst
Department of Electrical and Computer Engineering,
Duke University
, Durham, North Carolina 27708
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D. R. Smith
D. R. Smith
Department of Electrical and Computer Engineering,
Duke University
, Durham, North Carolina 27708
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a)
Electronic mail: tdriscol@physics.ucsd.edu
Appl. Phys. Lett. 90, 092508 (2007)
Article history
Received:
December 13 2006
Accepted:
January 17 2007
Citation
T. Driscoll, G. O. Andreev, D. N. Basov, S. Palit, Tong Ren, Jack Mock, Sang-Yeon Cho, Nan Marie Jokerst, D. R. Smith; Quantitative investigation of a terahertz artificial magnetic resonance using oblique angle spectroscopy. Appl. Phys. Lett. 26 February 2007; 90 (9): 092508. https://doi.org/10.1063/1.2679766
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