Generalized matrix method for calculation of internal light energy flux in mixed coherent and incoherent multilayers

Abstract

A generalized matrix method to treat multilayer systems with mixed coherent and incoherent optical behavior is presented. The method is based on the calculation of the light energy flux inside the multilayer, whose internal light absorption is straightforwardly derived. The Poynting vector is used to derive the light energy flux in the case of a layer with coherent behavior. Multilayer structures with any distribution of layers with coherent or incoherent behavior can be treated, including the case of oblique incidence. Use of the light energy flux instead of the more commonly used light intensity permits the calculation of light absorption with a better accuracy and a much shorter computation time.

Periodic structures with spherical alumina particles: Transmission and reflection spectra

“…Consider light propagation in a multilayer with taking into account multiple reflections between monolayers by using the transfer matrix method [7,8]. We suppose the monolayers as interfaces and the spaces between them as layers.…”

“…At first, in QCA [1,3,5,6] the spectra of coherent transmission and reflection coefficients of individual monolayers are calculated. Then, using the obtained coefficients and the transfer matrix method (TMM) [7,8] the coherent transmission and reflection coefficients of a multilayer are evaluated.…”

Optical model for multilayer glazing systems: Application to laminated glass and photovoltaic modules

“…Transfer matrix methods have been largely studied in the literature from different approaches (Centurioni 2005 These methods have their roots in the classical study of characteristic matrices (dependent on Fresnel coefficients for interference systems or coherent case) which connect the electromagnetic field components at an interface (Abelès 1950, Born and Wolf 1959, Heavens 1960 and the application of the method to thin films (Epstein 1952, Francombe and Hoffman 1971, Herpin 1947, Thelen 1989. The reformulation of these matrices in terms of coefficients relating energy magnitudes (through, e.g., the Poynting vector) allows the definition of transfer matrices as proposed herein.…”

Simulation of Rough Surface of CIGS (CuInGaSe) Solar Cell by RCWA (Rigorous Coupled Wave Analysis) Considering the Incoherency of Light

“…In the case of considering both textured surfaces and incoherent nature of sunlight, however, this approach is not proper because the input light of solar cell is incoherent sunlight. Several research results for modeling incoherent or partially coherent light have been reported [8][9][10]. But these simulated the incoherent light only and did not consider the roughness of the surfaces.…”