Brillouin Scattering Part 1
Brillouin Scattering Part 1

Author:

Publisher: Academic Press

Published: 2022-06-24

Total Pages: 252

ISBN-13: 0323989306

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Brillouin Scattering, Volume 109 in the Semiconductors and Semimetal series, marks the centenary of Leon Brillouin's seminal 1922 paper which provided a detailed theory of the effect that now bears his name. Stimulated Brillouin Scattering (SBS) is the strongest third order optical nonlinearity and plays an important role in contemporary science and applications, particularly lasers, communications, and fibre optics, as well as playing a new role in experimental physics and the life sciences. This volume provides a foundational perspective on Brillouin scattering, starting with a historical review of Brillouin scattering, the theory of SBS and the convergence between SBS and Optomechanics. We then consider SBS in several different waveguide geometries, including photonic crystal fibres, integrated optics and superfluids. - From the leading researchers in the field - Historical, theoretical, and scientific perspective - Pedagogical

Light Scattering from Deformed Droplets and Droplets with Inclusions: Volume 1 - Experimental Results
Light Scattering from Deformed Droplets and Droplets with Inclusions: Volume 1 - Experimental Results

Author:

Publisher:

Published: 2000

Total Pages: 27

ISBN-13:

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This is the first of two volumes dealing with experimental and theoretical results from the scattering of light by deformed liquid droplets and droplets with inclusions. Characterizing droplet deformation could lead to improved measurement of droplet size by commercial aerodynamic particle sizing instruments. Characterizing droplets with inclusions can be important in some industrial, occupational, and military monitoring scenarios. The nozzle assembly from a TSI aerodynamic particle sizer was used to provide the accelerating flow conditions in which experimental data were recorded. A helium-neon (HeNe) laser was employed to generate the light-scattering data, and an externally triggered, pulsed copper vapor laser provided illumination for a droplet imaging system, arranged orthogonal to the HeNe scattering axis. The observed droplet deformation correlates well over a limited acceleration range, with theoretical predictions derived from analytical solution of the Navier-Stokes equation.

Light Scattering from Deformed Droplets and Droplets with Inclusions
Light Scattering from Deformed Droplets and Droplets with Inclusions

Author: David R. Secker

Publisher:

Published: 2000

Total Pages: 21

ISBN-13:

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This is the first of two volumes dealing with experimental and theoretical results from the scattering of light by deformed liquid droplets and droplets with inclusions. Characterizing droplet deformation could lead to improved measurement of droplet size by commercial aerodynamic particle sizing instruments. Characterizing droplets with inclusions can be important in some industrial, occupational, and military monitoring scenarios. The nozzle assembly from a TSI aerodynamic particle sizer was used to provide the accelerating flow conditions in which experimental data were recorded. A helium-neon (HeNe) laser was employed to generate the light-scattering data, and an externally triggered, pulsed copper vapor laser provided illumination for a droplet imaging system, arranged orthogonal to the HeNe scattering axis. The observed droplet deformation correlates well over a limited acceleration range, with theoretical predictions derived from analytical solution of the Navier-Stokes equation.

Molecules in Superfluid Helium Nanodroplets
Molecules in Superfluid Helium Nanodroplets

Author: Alkwin Slenczka

Publisher: Springer Nature

Published: 2022-05-28

Total Pages: 590

ISBN-13: 303094896X

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This open access book covers recent advances in experiments using the ultra-cold, very weakly perturbing superfluid environment provided by helium nanodroplets for high resolution spectroscopic, structural and dynamic studies of molecules and synthetic clusters. The recent infra-red, UV-Vis studies of radicals, molecules, clusters, ions and biomolecules, as well as laser dynamical and laser orientational studies, are reviewed. The Coulomb explosion studies of the uniquely quantum structures of small helium clusters, X-ray imaging of large droplets and electron diffraction of embedded molecules are also described. Particular emphasis is given to the synthesis and detection of new species by mass spectrometry and deposition electron microscopy.

Quantum Liquids
Quantum Liquids

Author: J. Ruvalds

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 339

ISBN-13: 0444601082

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Quantum Liquids contains lectures presented at the International School of Low Temperature Physics in Erice, Italy, on June 11-25, 1977. The book reviews developments in the study of superfluid phases of the 3He system and in the understanding of quasiparticles and their interactions in the Bose 4He system, along with recent work on the 3He-4He mixtures. Comprised of 10 chapters, this volume begins with an overview of the renormalization group theory, critical phenomena, and phase transition in superfluid helium. It then discusses the superfluid density and the nature of critical singularities, the theory and practice of neutron scattering, and scattering from weakly interacting quantum liquids. The reader is also introduced to the superfluidity of liquid helium films, light scattering from superfluid helium, and the theory of superfluid 3He. Other chapters focus on superfluid flow in helium-4 compared to that in helium-3, the physical properties of small droplets of helium as analogs of heavy nuclei, and experimental properties of superfluid 3He. Excitations in 3He-4He mixtures, bound excitations in liquid He4, and temperature dependence of the single roton energy and lifetime are also discussed. Physicists and students of physics will find this book extremely useful.