¡Nos trasladamos! E-Prints cerrará el 7 de junio.

En las próximas semanas vamos a migrar nuestro repositorio a una nueva plataforma con muchas funcionalidades nuevas. En esta migración las fechas clave del proceso son las siguientes:

Es muy importante que cualquier depósito se realice en E-Prints Complutense antes del 7 de junio. En caso de urgencia para realizar un depósito, se puede comunicar a docta@ucm.es.

Design and numerical analysis of metallic Ronchi diffraction gratings acting as reflective beam-splitter



Downloads per month over past year

Torcal Milla, Francisco José and Sánchez Brea, Luis Miguel (2022) Design and numerical analysis of metallic Ronchi diffraction gratings acting as reflective beam-splitter. Optik- international journal for light and electron optics, 271 . ISSN 0030-4026

[thumbnail of SBrea 22 OA+CC(nc-nd).pdf]
Creative Commons Attribution Non-commercial No Derivatives.


Official URL: http://dx.doi.org/10.1016/j.ijleo.2022.170119


In this work, a reflective beam-splitter based on a metallic Ronchi diffraction grating normally illuminated is designed and analysed. This kind of beam-splitter could have potential applications in photonics and optical technologies in which robustness is necessary since it may be manufactured over malleable metallic substrates.Methods: The main idea under the design is as simple as obligating the zero-th diffraction order to be null. Firstly, scalar approach is performed, showing an approximation to the parameters of the grating necessary to cancel zero-th diffraction order. After that, a more rigorous approach such as Rigorous Coupled Waves Analysis (TE and TM polarization) is used to evaluate the proposed diffraction gratings as reflective beam-splitters.Results: Beam-splitting is demonstrated for TE and TM polarization with slightly different dimensional parameters of the diffraction grating. Besides, we show how physical height of the grating grooves that allows cancelling zero-th diffraction order for a certain illumination wave-length depends on the metals used to manufacture the grating and its period. The dependence of the grooves height on the period is exponentially decreasing. To complete the analysis, we demonstrate how for a given grating period, the grooves height also depends on the illumination wavelength.

Item Type:Article
Additional Information:

© 2022 The Author(s). Published by Elsevier GmbH.
We would like to thank Alexander Cuadrado and Mahmoud Hamdy Elshorbagy for their valuable comments about this manuscript. This work has been partially supported by Gobierno de Arag´on-Fondo Social Europeo-Grupo de Tecnología ´Optica L´aser (Project E44_20R), Ministerio de Economía y Competitividad (Spain) and the European funds for regional development (EU), project Nanorooms PID2019-105918 GB-I00.

Uncontrolled Keywords:Optical-constants; Near-field; Talbot; Encoder; Images; Steel
Subjects:Sciences > Physics > Optics
ID Code:75899
Deposited On:21 Dec 2022 18:10
Last Modified:21 Dec 2022 18:10

Origin of downloads

Repository Staff Only: item control page