Theory of subwavelength hole arrays coupled with photonic crystals for extraordinary thermal emission

Biswas, Rana; Ding, C. G.; Puscasu, Irina; Pralle, Martin U.; McNeal, M.; Daly, James T.; Greenwald, A. C.; Johnson, Edward A.

doi:10.1103/physrevb.74.045107

Cited by 54 publications

(32 citation statements)

References 18 publications

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“…This scattering matrix algorithm is routinely used in transmission and reflection of waves from photonic crystals when illuminated externally [9][10][11][12]19 without an internal source. The algorithm differs from the approach of calculating reflection and transmission from a layered structure with a gain layer, which does not consider enhancement of radiation rates from local fields.…”

Section: Results With the Scattering Matrix Simulationmentioning

confidence: 99%

Simulations of emission from microcavity tandem organic light-emitting diodes

Biswas

Zhao

et al. 2011

J. Photon. Energy

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Abstract. Microcavity tandem organic light-emitting diodes (OLEDs) are simulated and compared to experimental results. The simulations are based on two complementary techniques: rigorous finite element solutions of Maxwell's equations and Fourier space scattering matrix solutions. A narrowing and blue shift of the emission spectrum relative to the noncavity single unit OLED is obtained both theoretically and experimentally. In the simulations, a distribution of emitting sources is placed near the interface of the electron transport layer tris(8-hydroxyquinoline) Al (Alq 3 ) and the hole transport layer (N,N -bis(naphthalen-1-yl)-N,N

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Section: Results With the Scattering Matrix Simulationmentioning

confidence: 99%

Simulations of emission from microcavity tandem organic light-emitting diodes

Biswas

Zhao

et al. 2011

J. Photon. Energy

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“…The emitted infrared radiation has a narrower-band and is directional. A subwavelength hole array was used to filter the blackbody emission of silicon structures coated with metal [138,139]. In another work, the emission from a thin (100-500 nm) heated SiO 2 layer sandwiched between two 100 nm silver films, one with a periodic array of subwavelength apertures, showed a narrow peak of 480 nm FWHM at around 4 µm [140].…”

Section: Filtering and Switchingmentioning

confidence: 99%

Resonant optical transmission through hole‐arrays in metal films: physics and applications

Gordon¹,

Brolo

Sinton

et al. 2010

Laser & Photonics Reviews

163

104

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Extraordinary optical transmission through an array of holes in a metal film was reported by Ebbesen and coworkers in 1998. Since that work there has been abundant research activity aimed at understanding the physics and at the development of the many applications associated with this phenomenon, hence the topic of this review. The study of hole-arrays in a metal is not new -theoretical contributions on a small-hole array date back to Lord Rayleigh's description of Wood's anomaly in 1907 and there has been considerable research on metal meshes and holearrays since 1962. Bethe's theory, adapted to treat hole-arrays, is the simplest theoretical description of the transmission resonance. Following a description of this basic theory, we present the research on the additional effects from variations in real metal properties at different wavelengths, film thickness, holeshape and lattice configuration. The many promising applications being developed using hole-arrays are examined, including polarization control, filtering, switching, nonlinear optics, surface plasmon resonance sensing, surface-enhanced fluorescence, surface-enhanced Raman scattering, absorption spectroscopy, and quantum interactions. Finally, the various approaches, developments in hole-array fabrication, and integration of hole-arrays into devices are described. (top left) Schematic of resonant transmission through nanohole array using scanning electron microscope image of as-fabricated sample. (top right) Microfluidic chip incorporating nanohole arrays. (bottom) Composite image of array of nanohole arrays used as sensors in a immunoassay-like microfluidic device, showing (left to right) schematic of microfluidic layout, microscope image of arrays in microfluidic channels, and laser transmission modified by adsorbed molecules.

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“…To fabricate this solar cell, we first determined optimum parameters with rigorous scattering matrix simulations, where Maxwell's equations are solved in Fourier space for both polarizations [2,12]. From the scattering matrix S, we obtain the reflection and absorption [2,12].…”

Section: (A) (B) Approachmentioning

confidence: 99%

Photonic Crystal Back Reflectors for Enhanced Absorption in Amorphous Silicon Solar Cells

2010

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Photonic crystal back reflectors offer enhanced optical absorption in thin-film solar cells, without undesirable losses. Rigorous simulations of photonic crystal back reflectors predicted maximized light absorption in amorphous silicon solar cells for a pitch of 700-800 nm. Simulations also predict that for typical 250 nm i-layer cells, the periodic photonic crystal back reflector can improve absorption over the ideal randomly roughened back reflector (or the '4n 2 classical limit') at wavelengths near the band edge. The PC back reflector provides even higher enhancement than roughened back reflectors for cells with even thinner i-layers. Using these simulated designs, we fabricated metallic photonic crystal back reflectors with different etch depths and i-layer thicknesses. The photonic crystals had a pitch of 760 nm and triangular lattice symmetry. The average light absorption increased with the PC back reflectors, but the greatest improvement (7-8%) in short circuit current was found for thinner i-layers. We have studied the dependence of cell performance on the etch depth of the photonic crystal. The photonic crystal back reflector strongly diffracts light and increases optical path lengths of solar photons.

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Theory of subwavelength hole arrays coupled with photonic crystals for extraordinary thermal emission

Cited by 54 publications

References 18 publications

Simulations of emission from microcavity tandem organic light-emitting diodes

Simulations of emission from microcavity tandem organic light-emitting diodes

Resonant optical transmission through hole‐arrays in metal films: physics and applications

Photonic Crystal Back Reflectors for Enhanced Absorption in Amorphous Silicon Solar Cells

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