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Performance enhancement of terahertz metamaterials on ultrathin substrates for sensing applications
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10.1063/1.3533367
/content/aip/journal/apl/97/26/10.1063/1.3533367
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/26/10.1063/1.3533367
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Figures

Image of FIG. 1.
FIG. 1.

Schematics of planar SRRs fabricated on a (a) thin silicon nitride substrate of thick, i.e., -SRRs, and a (b) silicon (Si) bulk substrate of thick, i.e., Si-SRRs. (c) Simulation of the norm of the electric field at resonance. [(d) and (e)] Cross-section view of the electric field penetration at resonance for Si-SRRs and -SRRs, respectively.

Image of FIG. 2.
FIG. 2.

Simulation results show that MMs on substrates show better sensitivity of different (a) thicknesses and (b) dielectric constants than MMs on Si substrates. (Insets) Two SRR designs are used, respectively. All dimensions are in microns.

Image of FIG. 3.
FIG. 3.

Terahertz TDS measured frequency-dependent transmission spectra of -SRRs and Si-SRRs without and with an overlayer of silk fibroin film with various thicknesses of 500 nm, 750 nm, and .

Image of FIG. 4.
FIG. 4.

Terahertz TDS measured frequency-dependent transmission spectra of -SRRs and Si-SRRs without any coating and with an overlayer of thick silk fibroin film doped with 0.1 mM RHB and 0.1 mM RB.

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/content/aip/journal/apl/97/26/10.1063/1.3533367
2010-12-30
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Performance enhancement of terahertz metamaterials on ultrathin substrates for sensing applications
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/26/10.1063/1.3533367
10.1063/1.3533367
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