Low-frequency spectroscopy of superconducting photonic crystals

Poddubny, Alexander N.; Ivchenko, E. L.; Lozovik, Yu. E.

doi:10.1016/j.ssc.2008.02.003

Cited by 25 publications

(7 citation statements)

References 18 publications

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“…[4][5][6][7][8][9][10][11][12][13][14] Another group of unconventional materials for PCs, namely, superconductors was also studied in a number of theoretical publications for 1D and 2D PCs. [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] All the articles related to superconducting ͑SC͒ PCs were investigating regular ͑nondefect͒ structures. The interest to the SC PCs is due to their applications in a new type of resonators 34 and microstrip filters based on YBa 2 Cu 3 O 7 which work in the gigahertz regime.…”

Section: -3mentioning

confidence: 99%

One-dimensional photonic crystal with a complex defect containing an ultrathin superconducting sublayer

Zabolotin

Lyubchanskii

Lee

et al. 2010

Journal of Applied Physics

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The influence of the variation in the incidence angle on the photonic band gap spectra of a one-dimensional dielectric photonic crystal with a complex defect layer, consisting of ultrathin superconducting and dielectric sublayers, was theoretically investigated. The behavior of the defect modes with different polarizations as a function of the incidence angle variation is studied numerically for different thicknesses of the superconducting sublayer. The pronounced contrast in behavior of TE-and TM-polarized modes was demonstrated. The intensity of the TE-polarized defect mode decreases with increasing incidence angle, whereas the intensity of the TM-polarized defect mode increases. The increase in the superconducting defect sublayer thickness leads to a shift in the defect mode of TM-polarization to higher frequencies.

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Section: -3mentioning

confidence: 99%

One-dimensional photonic crystal with a complex defect containing an ultrathin superconducting sublayer

Zabolotin

Lyubchanskii

Lee

et al. 2010

Journal of Applied Physics

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“…25 , 52 In the latter case, it was found that the gap is temperature dependent, due to the temperature dependence of the superfluid density, and therefore tunable. 52 , 53 , 54 , 62 , 57 High temperature cuprate superconducting materials have strongly anisotropic dielectric properties. They show metallic behavior for currents flowing in the Cu-O planes, and have dielectric-like properties for light polarized in the c-direction.…”

Section: Iii5mentioning

confidence: 99%

The physics and applications of superconducting metamaterials

Anlage

2010

J. Opt.

163

129

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We summarize progress in the development and application of metamaterial structures utilizing superconducting elements. After a brief review of the salient features of superconductivity, the advantages of superconducting metamaterials over their normal metal counterparts are discussed. We then present the unique electromagnetic properties of superconductors and discuss their use in both proposed and demonstrated metamaterial structures.Finally we discuss novel applications enabled by superconducting metamaterials, and then mention a few possible directions for future research.Our objective is to give a basic introduction to the emerging field of superconducting metamaterials. The discussion will focus on the RF, microwave, and low-THz frequency range, because only there can the unique properties of superconductors be utilized. Superconductors have a number of electromagnetic properties not shared by normal metals, and these properties can be exploited to make nearly ideal and novel metamaterial structures. In section I. we begin with a brief overview of the properties of superconductors that are of relevance to this discussion. In section II we consider some of the shortcomings of normal metal based metamaterials, and discuss how superconducting versions can have dramatically superior properties. This section also covers some of the limitations and disadvantages of superconducting metamaterials. Section III reviews theoretical and experimental results on a number of unique metamaterials, and discusses their properties.Section IV reviews novel applications of superconducting metamaterials, while section V includes a summary and speculates about future directions for these metamaterials. I. SuperconductivitySuperconductivity is characterized by three hallmark properties, these being zero DC resistance, a fully diamagnetic Meissner effect, and macroscopic quantum phenomena. 1 , 2 , 3 The zero DC resistance hallmark was first discovered by Kamerlingh Onnes in 1911, and has since led to many important applications of superconductors in power transmission and energy storage. The second hallmark is a spontaneous and essentially complete diamagnetic response developed by superconductors in the presence of a static magnetic field. As the material enters the superconducting state it will develop currents to exclude magnetic field from its interior. This phenomenon is known as the Meissner effect, and distinguishes superconductors from perfect conductors (which would not show a spontaneous Meissner effect).Finally, macroscopic quantum effects arise from the quantum mechanical nature of the superconducting correlated electron state.

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“…The high temperature superconductor YBCO is considered in the following calculations. Its parameters in normal state are x p ¼ 1.67 Â 10 15 rad/s, c p ¼ 1.34 Â 10 13 rad/s, and T c ¼ 91 K. 44 When the active system is pumped, the electromagnetic fields can be calculated using FDTD method to solve Eqs. (1), (2), and (7)- (10).…”

Section: -2mentioning

confidence: 99%

Tunability of terahertz random lasers with temperature based on superconducting materials

Ardakani

Bahrampour

Mahdavi

et al. 2012

Journal of Applied Physics

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We theoretically demonstrate the tunabiltiy of terahertz random lasers composed of high temperature superconductor YBCO and ruby layers as active medium. The considered system is a one-dimensional disordered medium made of ruby grain and YBCO. Finite-difference time domain method is used to calculate the emission spectrum and spatial distribution of electric field at different temperatures. Our numerical results reveal that the superconductor based random lasers exhibit large temperature tunability in the terahertz domain. The emission spectrum is significantly temperature dependent, the number of lasing modes and their intensities increase with decreasing temperature. Also, we make some discussion to explain the reason for the observed tunability and the effect of temperature variation on the spatial distribution of the electric field in the disordered active medium. V

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Low-frequency spectroscopy of superconducting photonic crystals

Cited by 25 publications

References 18 publications

One-dimensional photonic crystal with a complex defect containing an ultrathin superconducting sublayer

One-dimensional photonic crystal with a complex defect containing an ultrathin superconducting sublayer

The physics and applications of superconducting metamaterials

Tunability of terahertz random lasers with temperature based on superconducting materials

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