Making Metals Transparent for White Light by Spoof Surface Plasmons

Huang, Xianrong; Peng, Ru‐Wen; Fan, Ren‐Hao

doi:10.1103/physrevlett.105.243901

Cited by 107 publications

(87 citation statements)

References 14 publications

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“…Very recently, we have utilized periodic designing to successfully make structured metals transparent for broadband infrared and terahertz waves by relying on non-resonant excitation of spoof surface plasmons (SSPs) or SPs. [24][25][26] Similar phenomenon are further found in optical frequencies, which is explained by the anomalous impedance-matching mechanism. [27][28][29][30] However, the broadband transparence in periodic systems occurs for wavelengths larger than the first-order Wood's anomaly.…”

Section: Introductionsupporting

confidence: 61%

“…Note that Equation (9) for non-periodic gratings looks like the expression for periodic gratings 24,25 , but here in Eq. (9), air void filling ratio W / D is an average quantity representing the proportion of the empty space with respect to the volume of the entire non-periodic grating.…”

Section: Analytical Analysis On Broadband Transparence In Non-permentioning

confidence: 99%

“…24,28 Note that in the short wavelength range, Wood's anomalies appear due to the diffraction effects, which sharply interrupt the continuous high transmission spectra.…”

Section: Numerical Simulations On Broadband Transparence In Metamentioning

confidence: 99%

“…[27][28][29][30] However, the broadband transparence in periodic systems occurs for wavelengths larger than the first-order Wood's anomaly. 24,25 Around the Wood's anomalies, 31,32 the transmission of electromagnetic waves drops to zero because of the interference between the wavelets scattered by the periodic structures, which is essentially a diffraction effect of the periodic structures. To further broaden the transparency bandwidth and improve transmission efficiency of structured metals, we now try to exploit aperiodic structures to break the transitional symmetry and decrease the degree of ordering in the system, then weaken or even eliminate Wood's anomalies, thus achieving broadband high transparency based on non-resonant excitations in aperiodic metallic gratings.…”

Section: Introductionmentioning

confidence: 99%

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Nonperiodic metallic gratings transparent for broadband terahertz waves

et al. 2015

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In this work, we demonstrate both theoretically and experimentally that non-periodic metallic gratings can become transparent for broadband terahertz waves. It is shown that broadband high transmission appears in aperiodic metallic gratings (including quasi-periodic and disordered ones), which originates from the non-resonant excitations in the grating system. Quasi-periodic and disordered metallic gratings effectively weaken and even eliminate Wood's anomalies, which are the diffraction-related characters of periodic gratings.Consequently, both the transparence bandwidth and transmission efficiency are significantly increased due to the structural aperiodicity. And an optimal condition is also achieved for broadband high transparency in aperiodic metallic gratings. Experimental measurements at terahertz regime reasonably agree with both analytical analysis and numerical simulations.Furthermore, we show that for a specific light source, for example, a line source, a corresponding non-periodic transparent grating can be also designed. We expect that our findings can be applied for transparent conducting panels, perfect white-beam polarizers, antireflective conducting solar cells, and beyond.

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Section: Introductionsupporting

confidence: 61%

Section: Analytical Analysis On Broadband Transparence In Non-permentioning

confidence: 99%

“…24,28 Note that in the short wavelength range, Wood's anomalies appear due to the diffraction effects, which sharply interrupt the continuous high transmission spectra.…”

Section: Numerical Simulations On Broadband Transparence In Metamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nonperiodic metallic gratings transparent for broadband terahertz waves

et al. 2015

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“…However, as discussed previously, 1-D diffraction gratings are also interesting and still attract the attention of researchers. [25][26][27] These gratings do not behave exactly as 2-D arrays of holes since the slits support propagating modes which are absent inside small holes. 6 The extension of the theory in Ref.…”

Section: Introductionmentioning

confidence: 99%

Analytical model for the transmission of electromagnetic waves through arrays of slits in perfect conductors and lossy metal screens

Yang

Rodríguez-Berral

Medina

et al. 2011

Journal of Applied Physics

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This paper presents a very simple analytical model for the analysis of the resonant transmission of microwaves or millimeter waves through periodically distributed slits in a thick metal screen. The model is based on equivalent circuits consisting of transmission line elements of known characteristic admittances and propagation constants loaded by capacitors. Closed-form analytical expressions are provided for all the circuit parameters. Alternatively, the circuit parameters can be quickly computed from numerical simulations carried out at a few frequency points. The proposed analytical model accounts for all the details of the observed transmission spectrum, including conventional Fabry-Pérot (FP) resonances, which are controlled by the thickness of the screen, as well as extraordinary transmission peaks, which are related to the periodicity. The range of validity of the model as a function of dimensional parameters is discussed. The experimentally observed and numerically predicted redshift of the Fabry-Pérot transmission peaks with respect to the ideal Fabry-Pérot resonance condition is accurately accounted for by the capacitors of the model. For narrow slits, the extraordinary transmission peak is linked to the singular behavior of the capacitances at the Rayleigh-Wood anomaly frequency point. Finally, the effect of the lossy nature of the metal screens is included in the model, providing accurate predictions of the transmission losses. Additionally, for lossy screens the model adequately predicts the anomalous behavior of the above mentioned redshift when the slit width becomes comparable to the skin depth in the metal, which is in good agreement with experimental and theoretical data previously reported for a single slit.

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Transparent Metals for Ultrabroadband Electromagnetic Waves

et al. 2012

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Making metals transparent, which could lead to fascinating applications, has long been pursued. Here we demonstrate that with narrow slit arrays metallic plates become transparent for extremely broad bandwidths; the high transmission efficiency is insensitive to the metal thickness. This work provides a guideline to develop novel devices, including transparent conducting panels, broadband metamaterials, and antireflective solar cells.

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Making Metals Transparent for White Light by Spoof Surface Plasmons

Cited by 107 publications

References 14 publications

Nonperiodic metallic gratings transparent for broadband terahertz waves

Nonperiodic metallic gratings transparent for broadband terahertz waves

Analytical model for the transmission of electromagnetic waves through arrays of slits in perfect conductors and lossy metal screens

Transparent Metals for Ultrabroadband Electromagnetic Waves

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