Terahertz Intrinsic and Effective Surface Impedances of High-Temperature Superconducting Thin Films

Lin, Wan‐Chen; Wu, Chien Jang; Yang, Tzong Jer; Chang, Shoou‐Jinn

doi:10.1163/156939310793675754

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…For this task, quartz is replaced with a magnesium oxide (MgO) substrate, whose dielectric permittivity is almost stable at low temperatures. The dielectric permittivity of MgO substrate is taken as ε = 9.7 [28] where YBCO is modeled with a fixed conductivity of 1 × 10 10 S/m. The numerical result for S-parameters for both magnitude ( Fig.…”

Section: Mgo-ybco Combinationmentioning

confidence: 99%

Thermally and optically tunable sub-terahertz superconducting fishnet metamaterial

Sabah

Mulla

Altan

et al. 2018

Physica C: Superconductivity and its Applications

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In this paper, a novel fishnet metamaterial structure is designed and analyzed under different material combinations and under different active controlling techniques. The results indicate that, the proposed fishnet metamaterial has a single resonance with double negativity at 0.39 THz when quartz substrate and aluminum is utilized in the design. Moreover, when the metallic parts are replaced with YBCO, the proposed design also exhibits double negativity with a stronger resonance and can be used as a switch between the double negative and single negative modes if the temperature is altered. In addition to these, when substrate (quartz) is replaced with MgO, the resonance shifts from 0.39 THz to 0.26 THz and shows double negativity. Moreover, switching properties under illumination can also be obtained when the silicon is utilized in the design (MgO-YBCO combination). According to these results, it is found that, in the case that the conductivity of silicon exceeds a certain value, the character of the resonance changes from double negative to the single negative mode.

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Section: Mgo-ybco Combinationmentioning

confidence: 99%

Thermally and optically tunable sub-terahertz superconducting fishnet metamaterial

Sabah

Mulla

Altan

et al. 2018

Physica C: Superconductivity and its Applications

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“…With the development of the information age, optoelectronic technology has gradually become the main pillar of information technology in the 21st century [1][2][3][4][5][6][7][8]. In nonlinear optical (NLO) materials, organic NLO materials have better molecular plasticity, faster optical response rate, larger NLO performance than inorganic NLO materials, and have been rapidly developed [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of New Benzo[e]Indol Salts for Second-Order Nonlinear Optics

Wen

Ping

et al. 2020

Crystals

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Organic second-order nonlinear optical materials are of great significance in the field of integrated photonics, optical data storage and optical information processing. In this work, two iodide salts with benzo[e]indol cations as electron-withdrawing groups were designed and synthesized, which are (E)-2-(4-hydroxy-3-methoxystyryl)-1,1,3-trimethyl-1H-benzo[e]indol-3-ium iodide (1-TB) and (E)-2-(3,4-dihydroxystyryl)-1,1,3-trimethyl-1H-benzo[e]indol-3-ium iodide (2-TB). Under the irradiation of 1064 nm laser, the second harmonic generations of the 1-TB and 2-TB powders are 760 and 580 times that of urea, respectively. Among them, crystals of 1-TB are successfully grown by a slow cooling method without using seed crystals. Bulk crystal with a size of 8.0 × 3.0 × 1.0 mm3 and many submillimeter single crystals with excellent optical quality are obtained.

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The influence of surface roughness on conductor at terahertz frequencies

Wang¹

2014

Optik

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Terahertz Intrinsic and Effective Surface Impedances of High-Temperature Superconducting Thin Films

Cited by 4 publications

References 24 publications

Thermally and optically tunable sub-terahertz superconducting fishnet metamaterial

Thermally and optically tunable sub-terahertz superconducting fishnet metamaterial

Synthesis and Characterization of New Benzo[e]Indol Salts for Second-Order Nonlinear Optics

The influence of surface roughness on conductor at terahertz frequencies

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