Accumulation and transmission of the light energy in nonreciprocal multilayer systems

Gevorgyan, A. H.; Kocharian, Armen; Vardanyan, G.

doi:10.1016/j.optcom.2005.09.025

Cited by 39 publications

(17 citation statements)

References 32 publications

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“…When external magnetic field is present, CLC layer becomes a nonreciprocal element, which brings to a new light energy accumulating mechanism due to the asymmetrical transmission (reflection) [14,15]. In Fig.…”

Section: Light Energy Accumuluation Conclusionmentioning

confidence: 99%

“…It is natural to suppose that there is one more mechanism of light accumulation due to the asymmetrical (nonreciprocal) light transmission (reflection). Indeed, in [14,15] the possibilities of light energy accumulation by the systems: optical diode (1) (OD(1)) − IDL − OD(2) and OD − IDL − Mirror. An asymmetrical Fabri − Perot resonator with a cholesteric liquid crystal layer (CLCL) plays the role of OD (as it is known from [12], inhomogeneous gyrotropic media or multilayer systems with a layer(s) of gyrotropic medium have nonreciprocal properties as well).…”

Section: Introductionmentioning

confidence: 99%

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Light energy accumulators based on two optical diodes

Gevorgyan

Vardanyan²

2004

SPIE Proceedings

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Some optical properties of the multilayer system: a helical periodical medium layer (1) (HPML(1)) − an isotropic dielectric layer (IDL) − HPML(2) are discussed. HPML is in external magnetic field and due to this it becomes nonreciprocal. The electromagnetic wave energy distribution peculiarities inside the system are investigated as well. It is shown that wave energy accumulation takes place in certain spectral regions. Multilayer optical systems based on realistic materials with periodical structure are also discussed under the scope of applications for liquid or gas-heaters and for using as a solar energy and fiber optics converters.

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Section: Light Energy Accumuluation Conclusionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Light energy accumulators based on two optical diodes

Gevorgyan

Vardanyan²

2004

SPIE Proceedings

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“…It is to be noted that CLCs with a defect in the structure possess a number of peculiarities which the isotropic 1D PCs lack (see below, section III). Recently, CLCs with an anisotropic (isotropic) defect were considered [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] similar to .…”

Section: Introductionmentioning

confidence: 99%

Cholesteric Liquid Crystals With Tunable Defect Inside

et al. 2011

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Abstract. Peculiarities of the defect modes of cholesteric liquid crystals (CLCs) with an isotropic/anisotropic defect inside are investigated. The influence of the defect layer thickness and its anisotropy of refraction, the influence of the system thickness and of the defect layer position in the system, as well as the influence of the dielectric borders on the defect modes is investigated. It is shown that it is possible to change reflection at the defect modes in wide intervals and change the defect mode wavelength, by tuning the defect location and its thickness.Such a system possesses transmission asymmetry. Also, the CLC system thickness and the refraction coefficient of the medium bordering the CLC layer on its both sides have essential influence on the reflection at the defect mode and on the reflection frequency.

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“…Recently, CPCs having various types of defects have been considered, namely: a thin layer of an isotropic substance installed between two CPC layers [12][13][14][15][16][17]; a defect caused by the helix phase jump on the boundary of two CPC layers [14,[18][19][20]; a defect caused by a local change of the helix pitch [21][22][23]; and defects caused by spatially varying helix pitch [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Tuning of emission wavelength in chiral photonic crystals with an anisotropic defect layer

Gevorgyan

Harutyunyan

2009

Journal of Modern Optics

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We considered some properties of defect modes in chiral photonic crystals with an anisotropic defect layer at oblique light incidence. The problem was solved by Ambartsumian's layer addition method. We investigated some peculiarities of the discussed system's reflection spectra and also the polarization plane rotation spectra and polarization ellipticity spectra of the oblique light incidence for both the minimum and essential influence of the dielectric borders. Our investigations show that there is a possibility of rather a wide change of the emission wavelength in the subject system by changing the incidence angle, or by changing the doped dye concentration, or by changing the pumping wave intensity. We also investigated absorption (emission) peculiarities at different dye molecule concentration and at different chiral photonic crystal thicknesses.

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Accumulation and transmission of the light energy in nonreciprocal multilayer systems

Cited by 39 publications

References 32 publications

Light energy accumulators based on two optical diodes

Light energy accumulators based on two optical diodes

Cholesteric Liquid Crystals With Tunable Defect Inside

Tuning of emission wavelength in chiral photonic crystals with an anisotropic defect layer

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