The photophysical properties of a novel series of non-homoconjugated 1,2-di-, 1,2,3,4-tetra-, and 1,2,3,4,5,6-hexasubstituted fullerenes (compounds 1, 2, and 3, respectively) have been systematically investigated. In this report, we examine the effect of substitution pattern of non-homoconjugated derivatized fullerenes on the ground state UV-Vis absorption, triplet state properties (lifetime, q...

atmospheric visibility is a key factor in everyday life mainly in aviation, industry and surface traffic. it has been defined as the greatest distance at which an observer can just see a black object viewed against the horizon sky which is known as the visual range. furthermore, light extinction which is mostly due to absorption and scattering effects of aerosols in the atmosphere, can be calcu...

In a companion paper [Appl. Opt. 42, 2571 (2003)] the temperature dependence of Raman scattering and its influence on the Raman and Rayleigh-Mie lidar equations were examined. New forms of the lidar equation were developed to account for this temperature sensitivity.Here those results are used to derive the temperature-dependent forms of the equations for the water vapor mixing ratio, the aeros...

We present a new layered, hardware-accelerated splatting algorithm for volume rendering. Layered volume splatting features the speed benefits of fast axis-aligned pre-classified sheet-buffer splatting while at the same time exhibiting display quality comparable to highquality post-classified view-aligned sheet-buffer splatting. Additionally, we enhance the quality by using a more accurate appro...

Vacuum evaporated films of GexSe80-xPb20 have been characterized by using optical spectroscopy (especially transmission and absorption spectra). The chalcogenide glass of GexSe80-xPb20 has been prepared by melt quenching technique. Thin films of GexSe80-xPb20 are deposited by vacuum thermal evaporation technique on highly clean glass substrates and their optical properties such as refractive in...

Here we show that the charge transfer (CT) absorption signal in bulk-heterojunction solar cell blends, measured by photothermal deflection spectroscopy, is directly proportional to the density of molecular donor:acceptor interfaces. Since the optical transitions from the ground state to the interfacial CT state are weakly allowed at photon energies below the optical gap of both the donor and ac...

Protein Purification, and ssDNA. RPA was purified as described previously with the following modification. Bacterial cultures expressing recombinant RPA were supplemented with 100 μM ZnCl2. The protein concentrations were calculated using a Bradford assay (BioRAD) with bovine serum albumin as a standard. These values were verified using a NanoDrop spectrophotometer and extinction coefficient of...

A dynamic model of UV light photoinitiated cross linking in corneal collagen is presented to analyze the critical issues involved in the procedure. These issues include the dynamics of the UV light penetration and the safety depth margin (z*), the roles of the UV light intensity, concentration and extinction coefficient of the initiator. Analytic formulas are developed to show that z* is a decr...

An analytical solution of the comoving frame radiative transfer equation for a differentiallymoving slab is obtained and written in terms of the wavelength-integrated extinction coefficient ψ, the spectral thickness. It is shown that ψ is much smoother than the extinction coefficient χ(λ) itself and that it can bewell approximated e.g. by a simple piecewise linear function. Compared to conventi...

Simultaneous reconstruction of temperature field and radiative properties including scattering albedo and extinction coefficient is presented in a two-dimensional (2-D) rectangular, absorbing, emitting and isotropically scattering gray medium from the knowledge of the exit radiative intensities received by charge-coupled device (CCD) cameras at boundary surfaces. The inverse problem is formulat...