We present a Green's-function/Green's-theorem integral equation approach to numerically modeling two-dimensional, s-polarized, wave propagation problems effectively for a variety of geometries. The model accurately calculates both near fields and far fields because of the minimal assumptions made on the behavior of the scattered radiation. The method was applied to modeling light emission from ...

This paper presents a study of flax fibers coming from the TS (Turin Shroud) and evidences their peculiar features if compared with recent ones. A further comparison between image-fibers and non-image-fibers shows both structural and chemical differences especially in correspondence of the external layer about 200 nm thick. The PLM (Polarized Light Microscopy) is used to evidence the various fe...

A new microscope technique, termed "W" (double view video) microscopy, enables simultaneous observation of two different images of an object through a single video camera or by eye. The image pair may, for example, be transmission and fluorescence, fluorescence at different wavelengths, or mutually perpendicular components of polarized fluorescence. Any video microscope can be converted into a ...

We have developed a polarization microscope based on a commercial transmission microscope. We replace the halogen light source by a collimated LED light source module of six different colors. We use achromatic polarized optical elements that can cover the six different wavelength ranges in the polarization state generator (PSG) and polarization state analyzer (PSA) modules. The dual-rotating wa...

The aim of this paper is to study a transparent birefringent sample with a polarizer microscope, we measure orientation of optic axis of the sample and phase retardation. We make a polarizer microscope using a generated polarized beam. With a Mach-Zehnder setup we control polarized state of the beam. We use a Spatial Light Modulator to modulate X and Y components independently. The polarized be...

Table S2. The results obtained in 1-butyne hydrogenation with parahydrogen over Cy3P-Cu/SiO2-700 catalyst: 1-butyne conversion (X), selectivity to 1-butene (S1-butene), signal enhancements (SE) calculated for vinyl CH and CH2 protons of 1-butene, and lower estimates of percentages of pairwise hydrogen addition calculated using SE values. Temperature, °C Flow rate, mL/s X, % S1-butene, % SE (CH)...

Circularly polarized light (CPL) exerts a force of different magnitude on left- and right-handed enantiomers, an effect that could be exploited for chiral resolution of chemical compounds as well as controlled assembly of chiral nanostructures. However, enantioselective optical forces are challenging to control and quantify because their magnitude is extremely small (sub-piconewton) and varies ...

Optical scanning microscopy techniques based on the polarization control of light have capability providing non invasive label-free contrast. By comparing states excitation with its transformation after interaction sample, full optical properties can be summarized in a single 4×4 Mueller matrix. The main challenge such technique is to encode and decode polarized an optimal way pixel-by-pixel ta...

Rate constants for the gas phase reactions of O(P) atom with a series of monoterpenes have been determined at ambient temperature (~302-309K) and atmospheric pressure using a relative rate technique. Using the literature rate constants for O(P) + isobutene, cis and trans-2-butene, 3-methyl-1-butene, 2-methyl-2-butene and 2,3-dimethyl-2-butene as the standards, the O(P) rate constants derived fo...