Optical properties of Ag-Si<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>Cermet films: A comparison of effective-medium theories

Granqvist, Claes G.; Hunderi, O.

doi:10.1103/physrevb.18.2897

Cited by 184 publications

(80 citation statements)

References 44 publications

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“…Furthermore, we show that this phenomenon is similar to the high absorption of light observed in metal-dielectric composites 27,28 such as Au-glass, [29][30][31] Ag-glass, 32 and Co-Al 2 O 3 . 33 Its origin is fundamentally different from that of other black materials such as microstructured Si 34 or Ni-P 35 for which a rough surface morphology is essential.…”

Section: Introductionsupporting

confidence: 61%

“…27͒ and Ag-SiO 2 composites are somewhat different since resonances can clearly be seen in the visible part of the optical spectrum. 55,32 This gives rise to a dip in ⑀ 1 and a bump in ⑀ 2 .…”

Section: Discussionmentioning

confidence: 99%

“…This ͑self-consistent͒ approximation is able to model absorption over a large wavelength range and gives good results near the percolation threshold. 32,27,31 In this model …”

Section: Modeling a Effective Medium Theorymentioning

confidence: 99%

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Highly absorbing black Mg and rare-earth-Mg switchable mirrors

2004

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Apart from a reflecting and a transparent state, rare-earth-Mg alloys ͑RE-Mg͒ exhibit also a highly absorbing, black state during loading with hydrogen. The occurrence of such a black state is due to the disproportionation into subwavelength size REH 2ϩ⑀ and Mg grains during the first hydrogen loading. While the optical properties of REH x change continuously with a further increase in hydrogen concentration x, Mg changes abruptly from a good reflector to a transparent insulator (MgH 2 ). Thin pure Mg films also show this black state when ͑un͒loaded carefully at elevated temperatures. By using the Bruggeman effective medium approximation in combination with the transfer matrix method it is shown that the coexistence of Mg and MgH 2 grains is the cause of this high absorption. Furthermore, we compare this phenomenon to the high absorption of light observed in metal-dielectric composites.

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Section: Introductionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 99%

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Highly absorbing black Mg and rare-earth-Mg switchable mirrors

2004

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“…0. Despite this limitation, there is convincing evidence (Gittleman and Abeles, 1977) suggesting that Maxwell-Garnet theory may also satisfactorily reproduce plasmon resonances observed at optical frequencies in porous or granular metals, and has been shown to produce meaningful results (Granqvist and Hunderi, 1978) even for materials described by f $ 0:5.…”

Section: Plasmon Resonancementioning

confidence: 99%

Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy

et al. 2011

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Time-resolved, pulsed terahertz spectroscopy has developed into a powerful tool to study charge carrier dynamics in semiconductors and semiconductor structures over the past decades. Covering the energy range from a few to about 100 meV, terahertz radiation is sensitive to the response of charge quasiparticles, e.g., free carriers, polarons, and excitons. The distinct spectral signatures of these different quasiparticles in the THz range allow their discrimination and characterization using pulsed THz radiation. This frequency region is also well suited for the study of phonon resonances and intraband transitions in low-dimensional systems. Moreover, using a pump-probe scheme, it is possible to monitor the nonequilibrium time evolution of carriers and low-energy excitations with sub-ps time resolution. Being an all-optical technique, terahertz time-domain spectroscopy is contact-free and noninvasive and hence suited to probe the conductivity of, particularly, nanostructured materials that are difficult or impossible to access with other methods. The latest developments in the application of terahertz time-domain spectroscopy to bulk and nanostructured semiconductors are reviewed.

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“…We assume that ITO nanoparticles with D ( k are embedded in a continuous matrix, which implies that a Maxwell-Garnett effective medium treatment is appropriate. 16,17 Following established notation, [18][19][20] the effective dielectric function e MG is…”

mentioning

confidence: 99%

A polymer electrolyte with high luminous transmittance and low solar throughput: Polyethyleneimine-lithium bis(trifluoromethylsulfonyl) imide with In2O3:Sn nanocrystals

Pehlivan

Runnerstrom

et al. 2012

Applied Physics Letters

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Long lifetime, high density single-crystal erbium compound nanowires as a high optical gain material Appl. Phys. Lett. 100, 241905 (2012) A new type of optical biosensor from DNA wrapped semiconductor graphene ribbons J. Appl. Phys. 111, 114703 (2012) Nanomanipulation and nanofabrication with multi-probe scanning tunneling microscope: From individual atoms to nanowires Rev. Sci. Instrum. 83, 063704 (2012) Electrical growth of metallic nanoparticles in mesoporous silica films using atomic force microscopy

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Optical properties of Ag-SiO2Cermet films: A comparison of effective-medium theories

Cited by 184 publications

References 44 publications

Highly absorbing black Mg and rare-earth-Mg switchable mirrors

Highly absorbing black Mg and rare-earth-Mg switchable mirrors

Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy

A polymer electrolyte with high luminous transmittance and low solar throughput: Polyethyleneimine-lithium bis(trifluoromethylsulfonyl) imide with In2O3:Sn nanocrystals

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