The complete scattering matrix S of spheres was measured with a flow cytometer. The experimental equipment allows simultaneous detection of two scattering-matrix elements for every sphere in the distribution. Two-parameter scatterplots with x and y coordinates determined by the S(ll) + S(ij) and S(ll)-S(ij) values are measured. Samples of spheres with very narrow size distributions (< 1%) were ...

We theoretically investigate light scattering from a bi-sphere system consisting of a gold nanosphere and a lossless dielectric microsphere illuminated at a resonant optical wavelength of the microsphere. Using generalized multisphere Mie theory, we find that a gold nanosphere 100 times smaller than the dielectric microsphere can be detected with a subdiffraction resolution as fine as one-third...

A parameterization is presented for the optical properties of water clouds in the infrared spectrum. The cloud optical properties are parameterized in terms of the cloud’s liquid water content and the effective radius defined from the droplet size distribution. Rational functions are used for the parameterization. The coefficients for the rational functions are derived by doing least square fit...

Light focused from air into a spherical microlens is affected by diffraction at the lens surface as its diameter approaches the wavelength of light. Through an extension of Mie theory, we show that a converging wave that is incident upon a Si microlens with a diameter less than approximately 4lambda creates a spot as much as 25% smaller than predicted with vector diffraction theory. Si microlen...

Metallic nanoparticles can exhibit very large optical extinction in the visible spectrum due to localized surface plasmon resonance. Spherical plasmonic nanoparticles have been the subject of numerous studies in recent years due to the fact that the scattering response of spheres can be analytically evaluated using Mie theory. However a major disadvantage of metallic spherical nanoparticles is ...

We illustrate some numerical applications of a recently derived semianalytic method for calculating the T matrix of a sphere composed of an arbitrary anisotropic medium with or without losses. This theory is essentially an extension of Mie theory of the diffraction by an isotropic sphere. We use this theory to verify a long-standing conjecture by Bohren and Huffman that the extinction cross sec...

This technical note extends previous Mie calculations to show that there are complex relationships between the asymmetry parameter g and the upscatter fractions for monodirectional incident radiation b(m0). Except for intermediate zenith angles and for the upscatter fraction for diffuse radiation, there are significant differences between b(m0) predicted by the Mie theory and that approximated ...

OBJECTIVE To use meta-analysis to compare oncologic outcomes of minimally invasive esophagectomy (MIE) with open techniques (thoracoscopic and/or laparoscopic). Analysis includes the extent of lymph node (LN) clearance, number of LNs retrieved, staging, geographic variance, and mortality. DATA SOURCES A systematic review of the literature was conducted in accordance with the PRISMA (Preferred...

BACKGROUND The mechanical insufflator-exsufflator (MIE) is effective in assisting cough and in helping to avoid unplanned hospitalizations, tracheostomy and long-term ventilation in patients with neuromuscular disease or spinal cord injury. Despite this, the availability and usage of the device in Canada is unknown. OBJECTIVE To investigate practice patterns and availability of the MIE in Ont...

BACKGROUND Minimally invasive esophagectomy (MIE) has been performed at specialized centers for 15 years, but few studies have looked at outcomes in patients with locally advanced cancers, and few studies have provided long-term survival comparison with Ivor Lewis esophagectomy (ILE) to determine oncologic benefit or equivalence of MIE. HYPOTHESIS Minimally invasive esophagectomy for locally ...