In this investigation the aim is to broaden the space of optics for Low Concentrating Photovoltaic applications. The main target is to achieve the concentration of sunlight uniformly over a large photovoltaic receiver. To solve this problem we implemented a Monte-Carlo method and defined a new parameter in order to facilitate the analysis of irradiance distributions. The geometric parameters to...

We construct a numerical scheme based on the Liouville equation of geometric optics coupled with the Geometric Theory of Diffraction (GTD) to simulate the high frequency linear waves diffracted by a corner. While the reflection boundary conditions are used at the boundary, a diffraction condition, based on the GTD theory, is introduced at the vertex. These conditions are built into the numerica...

Abstract A method is here proposed for predicting the field scattered by a planar junction between two penetrable lossy slabs having different features. The Geometrical Optics response is attained by extending the approach developed by Burnside and Burgener for lossless slabs. The diffraction contribution is evaluated by using a Physical Optics approximation of the equivalent surface currents d...

Coherent light exhibits properties that cannot be modeled by geometrical optics. Those properties include the limited focusability of light beams and the formation of speckle patterns when coherent light is scattered or reflected. We use existing physical models for these phenomena to mimic the behavior of Gaussian beams and the statistical properties of speckle patterns without performing a wa...

We present a simple model to describe epifluorescence collection in two-photon microscopy when one images in a turbid slab with an objective. Bulk and surface scattering determine the spatial and angular distributions of the outgoing fluorescence photons at the slab surface, and geometrical optics determines how efficiently the photons are collected. The collection optics are parameterized by t...

The optimization of radio frequency-wave (RF) systems for fusion experiments is often performed using ray-tracing codes, which rely on the geometrical-optics (GO) approximation. However, GO fails at caustics such as cutoffs and focal points, erroneously predicting wave intensity to be infinite. This a critical shortcoming GO, since caustic quantity interest, e.g., RF heating. Full-wave modeling...

We reconsider the basic properties of ray-transfer matrices for firstorder optical systems from a geometrical viewpoint. In the paraxial regime of scalar wave optics, there is a wide family of beams for which the action of a raytransfer matrix can be fully represented as a bilinear transformation on the upper complex half-plane, which is the hyperbolic plane. Alternatively, this action can be a...