Phase transition-governed opal–VO2 photonic crystal

Голубев, В. Г.; Davydov, V. Yu.; Картенко, Н. Ф.; Kurdyukov, D. A.; Medvedev, А. V.; Певцов, А. Б.; Scherbakov, A. V.; Shadrin, E. B.

doi:10.1063/1.1406144

Cited by 88 publications

(54 citation statements)

References 17 publications

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“…Recently, PSB shifting, assisted by a ferroelectric phase transitions, has been experimentally demonstrated [79]. However, the largest shift of a PSB in 3D photonic crystals, was observed in a photonic crystal built from an opal filled with VO 2 [80] that exhibits a semiconductor-metal phase transition. At the phase transition, the change in the effective refractive index of the opal results in PSB shifts of 40-nm [81].…”

Section: Tunable Photonic Crystalsmentioning

confidence: 99%

Ultrafast Optical Switching in Three-Dimensional Photonic Crystals

et al. 2003

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Section: Tunable Photonic Crystalsmentioning

confidence: 99%

Ultrafast Optical Switching in Three-Dimensional Photonic Crystals

et al. 2003

Self Cite

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“…Large refractive index changes of the backbone can also be attained by heat induced phase transitions in opal VO 2 composites [87]. Ultrafast changes in the Bragg peak of such structures with switching times of 350 fs have recently been demonstrated [88].…”

Section: Switching Mechanisms 221 Introductionmentioning

confidence: 99%

Ultrafast optical switching of photonic crystals

Guina¹,

Suomalainen²,

Kalkman

et al. 2006

2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference

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“…For the inverse photonic crystal based on vanadium dioxide reflection spectrum was recorded ( figure 4 (a)). Contour width is about of 50 nm, which is 2-3 times less than in the spectra of similar samples from the reference [9] ( figure 4 (b)). In this way, the phase transition of vanadium dioxide will be accompanied by an abrupt change of the band structure that is required to create quality femtosecond optical switches.…”

Section: Spectrophotometric Methodsmentioning

confidence: 99%

“…In this way, the phase transition of vanadium dioxide will be accompanied by an abrupt change of the band structure that is required to create quality femtosecond optical switches. The reflection spectra of the inverse PCs based on VO 2 , prepared in our work (a) and in the reference [9] (b).…”

Section: Spectrophotometric Methodsmentioning

confidence: 99%

Synthesis optimization of photonic crystals based on silicon and vanadium dioxides

Akhmadeev

Sarandaev

Салахов

2013

J. Phys.: Conf. Ser.

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Abstract. The photonic crystal is the material which structure is characterized by periodic distribution of refraction index in the spatial directions, which have the photonic band gaps in a spectrum of own electromagnetic states. There are numerous approaches of the creation of photonic crystals. In the present the optimal conditions of synthesis of photonic crystals based on silicon dioxide as well as the inverse photonic crystals based on vanadium dioxide are investigated. It is known that the synthesis process is influenced by many different factors. We have studied the dependence of the particle size on the concentration of reagents, as well as on the duration of the reaction. These studies are important for the production of samples of photonic crystals with a definite structure. IntroductionOne of the most important areas of modern physics is the study of periodic optical nanostructures, known as photonic crystals (PC) in which the dielectric constant varies periodically in space with period allowing Bragg diffraction of light. It is known that crystals of all types can disperse some radiation, provided that the period of the crystal lattice is of the same order as the wavelength of the radiation. Similarly, photonic crystals do not transmit the light with a wavelength comparable to the period of the photonic crystal structure, at the same time PCs are transparent to a wide range of electromagnetic radiation spectrum. These spectral bands are called "photonic band gap" (PBG) [1]. The works on photonic crystals are motivated by a number of promising applications, such as high-performance light emitting diodes, lowthreshold lasers, optical waveguides with sharp bends and optical microchips. Nowadays there are numerous approaches to the creation of PC by using the lithography [2], interferential holography [3] and self-assembly of colloidal particles [4]. One of the first materials that have been considered as photonic crystals were synthetic opals, consisting of close-packed spherical particles of silica. Self-assembly techniques are very promising, since they are quite simple in terms of hardware design and have no fundamental restrictions both on the sample size and the number of photonic crystals produced in one cycle of synthesis. However, the synthesis process is influenced by the factors like setting of the concentration ratio of the reactants, reaction temperature, sequence of blending and more. So our purpose is to investigate the effect of concentration ratio of reactant and duration of the reaction on the particle size, making possible creation of PC with predetermined characteristics. Our results are relevant for the experimental verification of the effect predicted by the authors in [5].

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Phase transition-governed opal–VO2 photonic crystal

Cited by 88 publications

References 17 publications

Ultrafast Optical Switching in Three-Dimensional Photonic Crystals

Ultrafast Optical Switching in Three-Dimensional Photonic Crystals

Ultrafast optical switching of photonic crystals

Synthesis optimization of photonic crystals based on silicon and vanadium dioxides

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