Spontaneous emission of laser dye molecules in synthetic opals under conditions of low dielectric contrast

Moiseyenko, V.; Dergachov, M. P.; Shvachich, V; Shvets, T. V.; Рощенко, О. Ф.

doi:10.3116/16091833/11/1/1/2010

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…The same effect was observed by Moiseyenko et al 96 They found that the emission of a uorophore that was embedded into a synthetic opal was suppressed in the region of PBG and amplied at the "blue" edge of the photonic band.…”

Section: Band Gap and Band Edge Effects (Engineering At The Crystal L...supporting

confidence: 80%

Wonders of colloidal assembly

et al. 2013

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In nature the spontaneous formation of ordered structures from molecules, called self-assembly, is a very common process occurring in inorganic matter and living organisms. It is driven by atoms, molecules, particles, granular matter, etc. trying to reach the lowest possible energy state while interacting with each other. Deeper understanding of the subtleties of such interactions will allow mimicking of this kind of behaviour to build custom structures from synthetic molecules. This review attempts to cover the existing techniques for directed self-assembly that are currently used for colloidal crystal growth with a brief explanation of the interactions involved in each technique. It provides examples of the fundamental phenomena occurring in photonic crystals that, in the future, can be exploited in various applications.

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Section: Band Gap and Band Edge Effects (Engineering At The Crystal L...supporting

confidence: 80%

Wonders of colloidal assembly

et al. 2013

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“…Luminescence spectra of laser dyes (rhodamine 6G and pironin G) are shown in Fig. 7 ( Moiseyenko et al, 2008Moiseyenko et al, , 2010. As seen from Fig.…”

Section: Laser Dyes Moleculesmentioning

confidence: 96%

Quantum Optics Phenomena in Synthetic Opal Photonic Crystals

Moiseyenko¹,

Dergachov²

2012

Quantum Optics and Laser Experiments

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Quantum Optics and Laser Experiments 88 allows modifying optical properties of such systems by filling the pores with various substances. Synthetic opal photonic crystals containing nonlinear optical substances give a good chance to observe quantum optics phenomena in spatially nonuniform media where the photon mean free path is close to the light wavelength. Moreover, in this case the input optical power that is necessary to observe phenomena may be lower than the power required usually for observing the same phenomena in uniform nonlinear substances. The reason for it is the existence of diffuse transfer of photons that can result in photon accumulating inside photonic crystals and, consequently, in local optical power increasing. In particular, the possibility of experimental manifestation of Raman scattering and spontaneous parametric down-conversion in synthetic opals is discussed (Gorelik, 2007). The latter phenomenon is of special interest as it is convenient method to obtain bi-photon fields consisting of correlated photon pairs (Kitaeva & Penin, 2005). In the recent years, crystals with chirped structure of quadratic susceptibility (Kitaeva & Penin, 2004), and materials with spatially regular and stochastic distribution of quadratic optical susceptibility (Kalashnikov et al., 2009), are considered as sources of bi-photons. It is quite possible synthetic opal photonic crystals will be ranked with these sources.

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“…Composed of the ordered close-packed silica particles with a diameter of several hundred nanometers, opals make it impossible for optical waves to propagate along some directions within a certain frequency range, the so-called photonic stopband [4]. Since the original opals are porous structures, substances with different refractive indices can be introduced into them, providing different optical contrast and thus controlling the photonic band parameters and, consequently, the spectrum of the outgoing radiation [5,6].…”

Section: Introductionmentioning

confidence: 99%

Structure and Characteristics of Opal - Bi12GeO20 and Opal - NaBi(MoO4)2 Nanocrystalline Composites

Derhachov,

Moiseienko,

Abu Sal

et al. 2024

NHC

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In this work we investigate and analyze phase composition and structure parameters of the nanocomposites obtained by the melt-based impregnation of porous opal matrices with dielectrics prospective for optoelectronics applications Bi12GeO20 and NaBi (MoO4)2. The embedded material is formed inside opal pores as nanocrystals with an average linear size not exceeding 50 nm and modified lattice parameters. In the case of impregnating opals with Bi12GeO20, new additional compounds are produced and transformation of opal matrix from amorphous to crystalline state is observed. These effects are discussed in the framework of the interaction of bismuth cations with the surface of the 285 nm SiO2 particles that compose opal matrix. No stoichiometry deviations and new phases are detected in “opal-NaBi (MoO4)2” composite.

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Spontaneous emission of laser dye molecules in synthetic opals under conditions of low dielectric contrast

Cited by 6 publications

References 9 publications

Wonders of colloidal assembly

Wonders of colloidal assembly

Quantum Optics Phenomena in Synthetic Opal Photonic Crystals

Structure and Characteristics of Opal - Bi<sub>12</sub>GeO<sub>20</sub> and Opal - NaBi(MoO<sub>4</sub>)<sub>2</sub> Nanocrystalline Composites

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