Resonant wideband polarizer with single silicon layer

Lee, Kyu J.; Curzan, James; Shokooh‐Saremi, Mehrdad; Magnusson, Robert

doi:10.1063/1.3594244

Cited by 45 publications

(13 citation statements)

References 17 publications

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“…For example, it has already been shown that a single periodic layer with 1-D periodicity enables narrow line filters, polarizers, reflectors, and polarization-independent elements. [26][27][28] An example of spectral response of a single-resonance device is shown in Fig. 2.…”

Section: Gmr Effect In Lossy Layersmentioning

confidence: 99%

Light management through guided-mode resonances in thin-film silicon solar cells

Khaleque

Magnusson

2014

J. Nanophoton

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Abstract. We theoretically explain and experimentally demonstrate light trapping in thin-film solar cells through guided-mode resonance (GMR) effects. Resonant field enhancement and propagation path elongation lead to enhanced solar absorption. We fabricate nanopatterned solar cells containing embedded 300-nm period, one-dimensional gratings. The grating pattern is fabricated on a glass substrate using laser interference lithography followed by a transparent conducting oxide coating as a top contact. A ∼320-nm thick p-i-n hydrogenated amorphous silicon solar cell is deposited over the patterned substrate followed by bottom contact deposition. We measure optical and electrical properties of the resonant solar cells. Compared to a planar reference solar cell, around 35% integrated absorption enhancement is observed over the 450 to 750-nm wavelength range. This light-management method results in enhanced short-circuit current density of 14.8 mA∕cm 2 , which is a ∼40% improvement over planar solar cells. Our experimental demonstration proves the potential of simple and well-designed GMR features in thinfilm solar cells. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Gmr Effect In Lossy Layersmentioning

confidence: 99%

Light management through guided-mode resonances in thin-film silicon solar cells

Khaleque

Magnusson

2014

J. Nanophoton

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“…This phenomenon finds important practical applications in contemporary photonic research. Specifically, GRs have been extensively exploited to create optical and photonic devices such as filters, 22 27 Also, in photovoltaics, GR-based back-reflectors have been proposed in order to increase absorption in thin-film solar cells.28 Moreover, the GR sensitivity (in terms of spectral shift) to changes in the surrounding environment has been exploited in connection with displacement 29 and biological 30,31 sensors. Extension of the GR effects to PQC geometries would bring along the aforementioned aperiodic-order-induced advantages and design perspectives to be exploited in the engineering of the GR phenomenon.…”

mentioning

confidence: 99%

“…[22][23][24][25][26][27][28][29][30][31]. Moreover, in view of the pervasive nature of the involved Fanotype resonant phenomena (ranging from EM and acoustics to atomic and condensed-matter physics; see, e.g., Ref.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

“…Specifically, GRs have been extensively exploited to create optical and photonic devices such as filters, 22 mirrors, 23 beam-splitters, 24 nanoelectromechanical tunable lasers, 25 focusing elements, 26 and polarizers. 27 Also, in photovoltaics, GR-based back-reflectors have been proposed in order to increase absorption in thin-film solar cells. 28 Moreover, the GR sensitivity (in terms of spectral shift) to changes in the surrounding environment has been exploited in connection with displacement 29 and biological 30,31 sensors.…”

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confidence: 99%

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Evidence of guided resonances in photonic quasicrystal slabs

Ricciardi¹,

Pisco²,

Cutolo³

et al. 2011

Phys. Rev. B

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We report on the experimental evidence of Fano-type guided resonances (GRs) in aperiodically-ordered photonic quasicrystal slabs. With specific reference to the Ammann-Beenker (8-fold symmetric, quasiperiodic) octagonal tiling geometry, we present our experimental results on silicon-on-insulator devices operating at near-infrared wavelengths, and compare them with the full-wave numerical predictions based on periodic approximants. Our results indicate that spatial periodicity is not strictly required for the GR excitation, and may be effectively surrogated by weaker forms of long-range aperiodic order which intrinsically provide extra degrees of freedom (e.g., higher-order rotational symmetries, richer defect states and phase-matching conditions, etc.) to be exploited in the design and performance optimization of nanostructured dielectric slabs operating in the out-of-plane configuration. The essential spectral features may be qualitatively understood in terms of phase-matching conditions derived from approximate homogenized models, and turn out to be effectively captured by full-wave modeling based on suitably-sized periodic approximants. The discovery, in 1984, of "quasicrystals" in solid-state physics 1,2 has triggered a growing interest in the study of aperiodically-ordered structures (based, e.g., on aperiodic tilings 3 ) in many branches of physics and engineering. 4 In particular, photonic quasicrystals (PQCs) have been widely investigated, [5][6][7] with the main focus on in-plane electromagnetic (EM) propagation effects in two-dimensional structures constituted of aperiodically-ordered arrangements of cylindrical inclusions (or holes) in a host medium. In this framework, certain effects observable in periodic photonic crystals (PCs), such as band gap, field localization, negative refraction and super-focusing, directive emission, etc., have been reproduced numerically and experimentally (see, e.g., Refs. 5-7 and references therein). The related studies provided useful insights in the influence of higher-order rotational symmetries, Bragg-type and multiple scattering, and shortrange interactions.8 Moreover, they also envisaged some potential advantages inherently tied to aperiodic order, such as easier achievement of phase-matching conditions, 9 higher isotropy and tradeoff between (lower) dielectric contrast and (higher) rotational symmetry, 10 richer and more wavelengthselective defect states, 11 field-localization capabilities even in the absence of lattice defects, 12 etc. In this framework, novel design strategies especially tailored to exploit the peculiar aspects and further degrees of freedom inherent of aperiodic order have been developed (see, e.g., Refs. 13 and 14).Much less attention has been devoted to out-of-plane propagation effects, with the notable exceptions of arrays of subwavelength holes in metallic films, [15][16][17][18] and arrays of metallic nanoparticles. 19,20 In particular, these latter results indicated the possibility of exciting broad resonances with enhanced spatial locali...

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Recent Advances in Resonant Waveguide Gratings

Quaranta

Basset

Martin

et al. 2018

Laser & Photonics Reviews

321

199

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Resonant waveguide gratings (RWGs), also known as guided mode resonant (GMR) gratings or waveguide‐mode resonant gratings, are dielectric structures where these resonant diffractive elements benefit from lateral leaky guided modes from UV to microwave frequencies in many different configurations. A broad range of optical effects are obtained using RWGs such as waveguide coupling, filtering, focusing, field enhancement and nonlinear effects, magneto‐optical Kerr effect, or electromagnetically induced transparency. Thanks to their high degree of optical tunability (wavelength, phase, polarization, intensity) and the variety of fabrication processes and materials available, RWGs have been implemented in a broad scope of applications in research and industry: refractive index and fluorescence biosensors, solar cells and photodetectors, signal processing, polarizers and wave plates, spectrometers, active tunable filters, mirrors for lasers and optical security features. The aim of this review is to discuss the latest developments in the field including numerical modeling, manufacturing, the physics, and applications of RWGs. Scientists and engineers interested in using RWGs for their application will also find links to the standard tools and references in modeling and fabrication according to their needs.

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Resonant wideband polarizer with single silicon layer

Cited by 45 publications

References 17 publications

Light management through guided-mode resonances in thin-film silicon solar cells

Light management through guided-mode resonances in thin-film silicon solar cells

Evidence of guided resonances in photonic quasicrystal slabs

Recent Advances in Resonant Waveguide Gratings

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