Transmission properties of terahertz pulses through subwavelength double split-ring resonators
Optics Letters, Vol. 31, Issue 5, pp. 634-636 (2006)
http://dx.doi.org/10.1364/OL.31.000634
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Abstract
We present a terahertz time-domain spectroscopy study of the transmission properties of planar composite media made from subwavelength double split-ring resonators (SRRs). The measured amplitude transmission spectra reveal a resonance near 0.5 THz, the central frequency of most ultrafast terahertz systems, for one SRR orientation in normal-incidence geometry. This resonance is attributed to the effect of electric excitation of magnetic resonance of the SRR arrays. In addition, the influences of background substrate, lattice constant, and the shapes of the SRRs on the terahertz resonance are experimentally investigated and agree well with the results of recent numerical studies.
© 2006 Optical Society of America
OCIS Codes
(160.4670) Materials : Optical materials
(320.7120) Ultrafast optics : Ultrafast phenomena
ToC Category:
Ultrafast Optics
History
Original Manuscript: August 18, 2005
Revised Manuscript: October 28, 2005
Manuscript Accepted: November 1, 2005
Citation
Abul K. Azad, Jianming Dai, and Weili Zhang, "Transmission properties of terahertz pulses through subwavelength double split-ring resonators," Opt. Lett. 31, 634-636 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-5-634
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