Tag: Crystals

Pattern Formation in Liquid Crystals


Free Download Pattern Formation in Liquid Crystals By Lorenz Kramer, Agnes Buka (auth.), Agnes Buka, Lorenz Kramer (eds.)
1996 | 340 Pages | ISBN: 1461284643 | PDF | 18 MB
In the last 20 years the study of nonlinear nonequilibrium phenomena in spa tially extended systems, with particular emphasis on pattern-forming phenomena, has been one of the very active areas in physics, exhibiting interesting ramifi cations into other sciences. During this time the study of the "classic" systems, like Rayleigh-Benard convection and Taylor vortex flow in simple fluids, has also been supplemented by the study of more complex systems. Here liquid crystals have played, and are still playing, a major role. One might say that liquid crystals provide just the right amount and right kind of complexity. They are full of non linearities and give rise to new symmetry classes, which are sometimes actually simpler to deal with qualitatively, but they still allow a quantitative description of experiments in many cases. In fact one of the attractions of the field is the close contact between experimentalists and theorists. Hydrodynamic instabilities in liquid crystals had already experienced a period of intense study in the late 1960s and early 1970s, but at that time neither the ex perimental and theoretical tools nor the concepts had been developed sufficiently far to address the questions that have since been found to be of particular interest. The renewed interest is also evidenced by the fact that a new series of workshops has evolved. The first one took place in 1989 in Bayreuth and united participants from almost all groups working in pattern formation in liquid crystals.

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Photonic Crystals Fabrication, Band Structure and Applications


Free Download Venla E. Laine, "Photonic Crystals: Fabrication, Band Structure and Applications "
English | ISBN: 1616689536 | 2011 | 305 pages | PDF | 16 MB
Photonic crystals are periodic optical nanostructures that are designed to affect the motion of photons in a similar way that periodicity of a semiconductor crystal affects the motion of electrons. Photonic crystals occur in nature and in various forms have been studied scientifically for the last 100 years. This book gathers and presents topical data in the field of photonic crystals including the phenomena in photonic crystals stipulating the presence of omnidirectional band gaps, i.e., overlapping of stop bands in all directions; the physics of photonic crystal couplers and their applications; photonic crystals and their capability to control the propagation and emission of electromagnetic waves and others.

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Collab Gem Polar Crystals WAV MiDi


Free Download Collab Gem Polar Crystals WAV MiDi | 13 September 2024 | 335.35 MB
Dive into the silky, chilled sounds of ‘Polar Crystals’ from Collab Gem. This sound pack, inspired by the effortless flows of Mac Miller, Joey Badass, Logic, and others alike, transports you to a world of smooth, winter-inspired vibes. Imagine the serene landscape of freshly fallen snow reflected in each meticulously crafted melody and rhythm.

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Phononic Crystals Artificial Crystals for Sonic, Acoustic, and Elastic Waves Ed 2


Free Download Vincent Laude, "Phononic Crystals: Artificial Crystals for Sonic, Acoustic, and Elastic Waves Ed 2"
English | ISBN: 3110637286 | 2020 | 448 pages | PDF | 23 MB
The book provides a comprehensive presentation of the topic of phononic and sonic crystals, including acoustic and elastic wave propagation in homogeneous and periodic media, Bloch waves and band structures, surface phononic crystals and phononic crystal slabs, evanescent Bloch waves and complex band structures, local resonance, dispersion and negative refraction, and phononic band gap guidance.

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