22 papers · ranked by Valyu relevance
H. E. Bennett, J. L. Stanford
Surface irregularities and crystalline order strongly influence both the scattered light and absorption of metallic films. These effects extend through all spectral regions but are particularly important in the visible and ultraviolet. Scattered light arises from several scattering mechanisms. Macroscopic…
Alfredo Rates, Ad Lagendijk, Minh Duy Truong, Willem L. Vos
object by optical mutual scattering Authors: ['Alfredo Rates' 'Ad Lagendijk' 'Minh Duy Truong' 'Willem L. Vos'] Mutual scattering arises when multiple waves intersect within a finite scattering object, resulting in cross-interference between the incident and scattered waves. By measuring mutual scattering, we determine…
Karim Louedec, Marcel Urban
We present a new method to study light scattering on non-absorbing spherical particles. This method is based on the Ramsauer approach, a model known in atomic an nuclear physics. Its main advantage is its intuitive understanding of the underlying physics phenomena. We show that although the approximations are numerous…
Donald McIntyre
The light scattering photometer recently described in this journal by McIntyre and Doderer has been examined to determine its ability to measure the absolute scattering of liquids. The absolute scattering of polymer solutions was determined from transmission measurements and from two different transverse measurements.…
V.G. Baryshevsky, Evgeny Gurnevich
This paper considers the refraction and diffraction of waves in three-dimensional crystals formed by anisotropically scattering centers. The partial wave expansion method is used to consider the effect of multiple rescattering of waves by centers composing a crystal. The expression for the refractive index of a crystal…
Zihao (John) Li, Christopher Fang-Yen
The roundworm Caenorhabditis elegans has become a widely studied model system in biology in part due to its small size and optical accessibility. Optical imaging of C. elegans primarily relies on scattering of light to generate contrast between the animal and its surroundings, and/or contrast to resolve internal…
Anna Wang, Christopher Chan Miller, Jack W. Szostak
Spectrophotometers are routinely used to assess the turbidity of vesicle solutions. Here we provide guidelines for interpreting turbidity measurements of vesicle samples, and highlight potential pitfalls of the approach. We use an exact solution for core-shell scatterers to model and calculate how samples of vesicles…
Grethe Vestergaard Jensen, John George Barker
The means by which multiple scattering contributions in experimental small-angle scattering data can be estimated, and how they can be included in the data analysis, are reviewed and discussed. The multiple scattering effects for a range of relevant model scattering functions are calculated using semi-analytically…
Duncan McArthur, Alison M. Yao, F. Papoff
Understanding the scattering properties of various media is of critical importance in many applications, from secure, high-bandwidth communications to extracting information about biological and mineral particles dissolved in sea water. In this paper we demonstrate how beams carrying orbital angular momentum (OAM) can…
Markus Selmke, Frank Cichos
Using Fermat's least optical path principle the family of ray-trajectories through a special but common type of a gradient refractive index lens, n (r) = n0 + ∆nR/r, is solved analytically. The solution, i.e. the ray-equation r (φ), is shown to be closely related to the famous Rutherford scattering and therefore termed…
Nozomi Nishizawa, Asato Esumi, Yukito Ganko
Significance The depolarization of circularly polarized light (CPL) caused by scattering in turbid media reveals structural information about the dispersed particles, such as their size, density, and distribution, which is useful for investigating the state of biological tissue. However, the correlation between…
Asmus Ougaard Dohn, Verena Isabell Markmann, Amke Nimmrich, Kristoffer Haldrup + 2 more
Structural studies using x-ray scattering methods for investigating molecules in solution are shifting focus towards describing the role and effects of the surrounding solvent. However, forward models based on molecular dynamics (MD) simulations to simulate structure factors and x-ray scattering from interatomic…
Maren Anna Brandsrud, Reinhold Blümel, Johanne Heitmann Solheim, Achim Kohler
'Achim Kohler'] Mie-type scattering features such as ripples (i.e., sharp shape-resonance peaks) and wiggles (i.e., broad oscillations), are frequently-observed scattering phenomena in infrared microspectroscopy of cells and tissues. They appear in general when the wavelength of electromagnetic radiation is of the same…
Molly A. May, Nicolas Barré, Kai K. Kummer, Michaela Kress + 2 more
Scattering in biological tissues is a major barrier for in vivo optical imaging of all but the most superficial structures. Progress toward overcoming the distortions caused by scattering in turbid media has been made by shaping the excitation wavefront to redirect power into a single point in the imaging plane.…
Thomas A. Hensel, Jan O. Wirth, Stefan W. Hell
Discerning two or more identical and constantly scattering point sources using freely propagating waves is thought to be limited by diffraction. Here we show both theoretically and experimentally that by employing a diffraction minimum rather than a maximum for resolution, a given number of point scatterers can be…
Houman Mirzaalian Dastjerdi, Mahyar Dahmardeh, André Gemeinhardt, Reza Gholami Mahmoodabadi + 2 more
It has been shown that interferometric detection of Rayleigh scattering (iSCAT) can reach an exquisite sensitivity for label-free detection of nano-matter, down to single proteins. The sensitivity of iSCAT detection is intrinsically limited by shot noise, which can be indefinitely improved by employing higher…
Savio Poovathingal, Min Qian, Vanessa Murray, Timothy Minton
The reactive and inelastic scattering dynamics of ground-state atomic and molecular oxygen from a carbon fiber network at 1023-1823 K was investigated with a molecular beam-surface scattering technique. A molecular beam containing hyperthermal O and O 2 with a mole ratio of 0.92:0.08 and nominal velocity of 8 km s -1…
Anne Virkki, Maxim A. Yurkin
The electromagnetic (EM) scattering by non-symmetric wavelength-scale particles on a planar surface has numerous applications in the remote sensing of planetary bodies, both in planetary and geosciences. We conduct numerical simulations of EM scattering by rough polyhedral particles (with 12 or 20 faces) using the…
Hiroshi Sawa
Recent studies highlighting the importance of diffuse scattering for materials science are presented.
Michael E. Wall, Alexander M. Wolff, James S. Fraser
X-ray crystallography is experiencing a renaissance as a method for probing the protein conformational ensemble. The inherent limitations of Bragg analysis, however, which only reveals the mean structure, have given way to a surge in interest in diffuse scattering, which is caused by structure variations. Diffuse…
Zachary M. Sherman, Jiho Kang, Delia J. Milliron, Thomas M. Truskett
The optical properties of disordered plasmonic nanoparticle assemblies can be continuously tuned through the structural organization and composition of their colloidal building blocks. However, progress in the design and experimental realization of these materials has been limited by challenges associated with…
Authors not listed
Ultraviolet liquid-microjet photoelectron spectroscopy is a powerful technique for the determination of electron binding energies of molecules in aqueous solution and for exploring their photochemical dynamics. However, our poor understanding of inelastic scattering of low energy electrons (< 10 eV) in water has…