Design and numerical analysis of metallic Ronchi diffraction gratings acting as reflective beam-splitter
Torcal-Milla, Francisco Jose (Universidad de Zaragoza) ; Sanchez-Brea, Luis Miguel
Resumen: Objective
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 wavelength 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.
Idioma: Inglés
DOI: 10.1016/j.ijleo.2022.170119
Año: 2022
Publicado en: Optik 271 (2022), 170119 [9 pp.]
ISSN: 0030-4026
Factor impacto JCR: 3.1 (2022)
Categ. JCR: OPTICS rank: 41 / 99 = 0.414 (2022) - Q2 - T2
Factor impacto CITESCORE: 5.7 - Engineering (Q1) - Physics and Astronomy (Q1) - Materials Science (Q2)
Factor impacto SCIMAGO: 0.539 - Atomic and Molecular Physics, and Optics (Q2) - Electronic, Optical and Magnetic Materials (Q2) - Electrical and Electronic Engineering (Q2)
Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-20R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2019-105918GB-I00
Tipo y forma: Artículo (Versión definitiva)
Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. No puede utilizar el material para una finalidad comercial. Si remezcla, transforma o crea a partir del material, no puede difundir el material modificado.
Exportado de SIDERAL (2024-03-18-16:19:48)
Visitas y descargas
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 wavelength 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.
Idioma: Inglés
DOI: 10.1016/j.ijleo.2022.170119
Año: 2022
Publicado en: Optik 271 (2022), 170119 [9 pp.]
ISSN: 0030-4026
Factor impacto JCR: 3.1 (2022)
Categ. JCR: OPTICS rank: 41 / 99 = 0.414 (2022) - Q2 - T2
Factor impacto CITESCORE: 5.7 - Engineering (Q1) - Physics and Astronomy (Q1) - Materials Science (Q2)
Factor impacto SCIMAGO: 0.539 - Atomic and Molecular Physics, and Optics (Q2) - Electronic, Optical and Magnetic Materials (Q2) - Electrical and Electronic Engineering (Q2)
Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-20R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2019-105918GB-I00
Tipo y forma: Artículo (Versión definitiva)
Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. No puede utilizar el material para una finalidad comercial. Si remezcla, transforma o crea a partir del material, no puede difundir el material modificado.Exportado de SIDERAL (2024-03-18-16:19:48)
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Registro creado el 2023-01-11, última modificación el 2024-03-19