Implementation of generalized Harvey-Shack theory in light scattering from rough surfaces

Date

2020-12-01

Author

Gunoven, M.
Nasser, H.
Ünal, Mustafa
Aytekin, O.
Turan, Raşit
Bek, Alpan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

483
views

0
downloads

We present a discrete implementation of generalized Harvey-Shack scalar scattering theory to calculate angular intensity distributions from height profiles of select randomly textured surfaces proposed for use in solar cells and covering a wide range of surface characteristics. We compare these calculations to high-resolution angular intensity distribution measurements. These comparisons suggest that the pupil function does benefit from an additional correction factor for rough surfaces containing lateral feature sizes on the order of the wavelength, which can be attributed to effective medium effects. Moreover, secondary interactions within the surface topography are shown to be a mechanism that partly redistributes scattered power, affecting angular intensity distribution results. These mechanisms emerge as the two main limitations of the Harvey-Shack scalar scattering theory in the far field, which nonetheless produces remarkable quantitative predictions.

URI

https://hdl.handle.net/11511/70210

Journal

PHYSICAL REVIEW A

DOI

https://doi.org/10.1103/physreva.102.063521

Collections

Center for Solar Energy Research and Applications (GÜNAM), Article

Suggestions

OpenMETU
Core

Investigation of tightly coupled arrays for wideband applications Arda, Kaan; Dural Ünver, Mevlüde Gülbin; Department of Electrical and Electronics Engineering (2020-10) This thesis aims to provide in depth research on tightly coupled dipole arrays to be used in ultrawideband apertures applications. First, operation principles of tightly coupled dipole arrays are investigated. Starting from the Wheeler’s current sheet aperture concept, some calculations on bandwidth and impedance concepts are conducted. B.A. Munk’s addition to the concept, use of capacitive elements between adjacent dipoles, are introduced. Array unit cell is modeled using equivalent circuit approach,...
Investigation of effect of design and operating parameters on acoustophoretic particle separation via 3D device-level simulations Sahin, Mehmet Akif; ÇETİN, BARBAROS; Özer, Mehmet Bülent (Springer Science and Business Media LLC, 2019-12-16) In the present study, a 3D device-level numerical model is implemented via finite element method to assess the effects of design and operating parameters on the separation performance of a microscale acoustofluidic device. Elastodynamic equations together with electromechanical coupling at the piezoelectric actuators for the stress field within the solid parts, Helmholtz equation for the acoustic field within fluid, and Navier-Stokes equations for the fluid flow are coupled for the simulations. Once the zer...
Implementation of coordinate transformations in periodic finite-element method for modeling rough surface scattering problems ÖZGÜN, ÖZLEM; Kuzuoğlu, Mustafa (2016-05-01) The coordinate transformation technique (with its current name of transformation electromagnetics) is applied to the finite-element method (FEM) with periodic boundary conditions for efficient Monte Carlo simulation of one-dimensional random rough surface scattering problems. In a unit cell of periodic structure, two coordinate transformations are used, one of which is a real transformation designed to model the rough surface with flat surface, and the other is a complex transformation used to design a perf...
Measurement of the inclusive 3-jet production differential cross section in proton-proton collisions at 7 TeV and determination of the strong coupling constant in the TeV range Khachatryan, V.; et. al. (Springer Science and Business Media LLC, 2015-05-01) This paper presents a measurement of the inclusive 3-jet production differential cross section at a proton-proton centre-of-mass energy of 7 TeV using data corresponding to an integrated luminosity of 5 fb(-1) collected with the CMS detector. The analysis is based on the three jets with the highest transverse momenta. The cross section is measured as a function of the invariant mass of the three jets in a range of 445-3270 GeV and in two bins of the maximum rapidity of the jets up to a value of 2. A compari...
Derivation and analysis of near field tofar field transformation algorithm for spherical scanning Korkmaz, Hülya; Koç, Seyit Sencer; Department of Electrical and Electronics Engineering (2019) This thesis focuses on the improvement of a far field transformation algorithm of spherical near field scanning by using different quadrature techniques for numerical integration process. In this thesis, spherical vector wave expansion of E field is studied and numerical calculation for expansion coefficients of E field is performed. In the scope of this study quadrature techniques like Gauss, Trapezoid and Simpsons are investigated and advantages and disadvantages of these techniques are discussed. A decis...

Citation Formats

M. Gunoven, H. Nasser, M. Ünal, O. Aytekin, R. Turan, and A. Bek, “Implementation of generalized Harvey-Shack theory in light scattering from rough surfaces,” PHYSICAL REVIEW A, pp. 0–0, 2020, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/70210.