High refractive index and other optical properties of heterogeneous media

Ораевский, А. Н.; Protsenko, Igor E.

doi:10.1134/1.1339896

Cited by 48 publications

(15 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Materials with approximately zero index of refraction also evoke great interest 21 . The possibility is investigated of employing of composite materials for achieving high index of refraction 22,23 . Below, we will demonstrate on the base of formulas (4), (5) the possibility of construction of composite medium with unit index of refraction.…”

Section: Numerical Resultsmentioning

confidence: 99%

Effective refractive index of nanocomposite media in view of retardation effects

Sukhov

Pashinina

2005

SPIE Proceedings

View full text Add to dashboard Cite

The optical properties of composite material made of metal nanospheres situated in the sites of three-dimensional lattice and embedded into dielectric matrix are considered. It is demonstrated that index of refraction of composite medium may acquire unit value at certain relations between dielectric constants. The method is developed for the description of optical properties of composite medium that takes into account retardation effects in nanospheres interactions. It is shown that obtained results coincide with Maxwell-Garnett theory in the limit of infinitesimal distances between nanospheres with respect to wavelength.

show abstract

Section: Numerical Resultsmentioning

confidence: 99%

Effective refractive index of nanocomposite media in view of retardation effects

Sukhov

Pashinina

2005

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

“…The effective permittivity of a NC layer ε mix is found from the Maxwell Garnett formula widely used when dealing with matrix media where a small volume fraction of isolated inclusions is dispersed in the material matrix [26,32]:…”

Section: Model and Transmittancementioning

confidence: 99%

Photonic defect modes in a cholesteric liquid crystal with a resonant nanocomposite layer and a twist defect

2014

View full text Add to dashboard Cite

We have studied spectral properties of a cholesteric liquid crystal with a combined defect consisting of a nanocomposite layer and a twist. The nanocomposite layer is made of metallic nanoballs dispersed in a transparent matrix and featuring effective resonant permittivity. A solution has been found for the transmission spectrum of circularly polarized waves in the structure. We have analyzed spectral splitting of the defect mode in the bandgap of the cholesteric when its frequency coincides with the nanocomposite resonant frequency. Defect modes have characteristics strongly dependent on the magnitude and direction of the phase jump at the interface between nanocomposite and cholesteric layers. It has been found that the bandgap width and the position and localization degree of defect modes can be effectively controlled by external fields applied to cholesteric.

show abstract

“…The linear and nonlinear optical properties of composite materials are determined by plasmon resonance of metal nanoparticles in transparent matrix. It is shown that optical resonance takes place in the transparent matrix with metal nanoparticles [8,9]. The temperature dependence of the Surface Plasmon Resonance is important in most of the recent applications of noble metal nanoparticles such as thermally assisted magnetic recording [10] and computer chips [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature on Nanocomposite of Metal Nanoparticles in Photonic Crystals

Ramanujam¹,

Wilson²,

Revathy³

2015

PIER M

View full text Add to dashboard Cite

Abstract-We theoretically investigate the photonic band gaps in one-dimensional photonic crystals based on nanocomposite of silver nanoparticles. The dielectric permittivity is calculated in accordance with temperature dependence of plasma frequency of silver nanoparticle. The effect of temperature on these structures by incorporating the volume expansion coefficient of nanoparticle is analysed. The behaviors of photonic band gaps with variation of filling factor, radii of nanoparticle and temperature are observed. The evolution of these results leads to designing the desired photonic crystals.

show abstract

High refractive index and other optical properties of heterogeneous media

Cited by 48 publications

References 9 publications

Effective refractive index of nanocomposite media in view of retardation effects

Effective refractive index of nanocomposite media in view of retardation effects

Photonic defect modes in a cholesteric liquid crystal with a resonant nanocomposite layer and a twist defect

Effect of Temperature on Nanocomposite of Metal Nanoparticles in Photonic Crystals

Contact Info

Product

Resources

About