Óptica difractiva: una revisión al diseño y construcción de sistemas ópticos empleando lentes difractivas
J. Castro-Ramos, S. Vázquez-Montiel, J. Hernández-de-la-Cruz, O. García-Lievanos y W. Calleja-Arriaga
Instituto Nacional de Astrofísica Óptica y Electrónica, Apartado Postal 51 y 217, 72000, Puebla, Pue. México,
e-mail: jcastro@inaoep.mx
Recibido el 20 de diciembre de 2005 ]]> Aceptado el 10 de noviembre de 2006
Resumen
Hoy en día la optica difractiva está teniendo un gran auge en la construcción de sistemas ópticos formadores de imagen, debido principalmente a las ventajas que se obtienen en la calidad de la imagen y al empleo de una menor cantidad de elementos ópticos. Así, los elementos ópticos difractivos (EOD) han alcanzado un gran impacto que va en incremento día a día; una clara muestra son los artículos científicos de investigación y divulgación [1-3] que han aparecido por parte de compañías transnacionales como CANON, KODAK y NYKON, entre otras, las cuales mencionan una gran cantidad de proyectos en los que planean construir y evaluar cámaras digitales, proyectores de cristal líquido y otros equipos formadores de imagen, todo ello mediante el empleo de EOD. Bajo el contexto anterior se plantea en este artículo hacer una revisión de los fundamentos en los que se basa la óptica difractiva, los métodos que se utilizan para diseñar los sistemas ópticos empleando elementos ópticos difractivos, así como la descripcion de las técnicas más comunes para su fabricación y el empleo que tienen estos sistemas opticos.
Descriptores: Elementos ópticos difractivos; microcomponentes ópticos; diseño ópticos; litografía ópticos.
Abstract
Nowadays diffractive optics in the fabrication of imaging optical systems is having a boom due to many advantages over the image quality and the use of less optical elements. Diffractive Optical Elements (DOE's) are showing a huge growth in the optical industry and it goes in increasing day to day. Transnational companies like CANON, KODAK and NYON refer to great quantity of projects for building imaging equipment, digital cameras; liquid crystal projectors among others by means of using DOE's, already their results have been appearing in a lot of published papers and technical reports [1-3]. Due to above written, a review on fundamental concepts in which the diffractive optics is based is explained. The methods employed to design optical systems by using diffractive optical elements are check over, the most common techniques to produce such elements are also reviewed. Finally some applications based on DOE's are explored in this paper.
Keywords: Diffractive optical elements; integrated optics; optical design; photolithography.
]]> PACS: 01.30.Rr; 07.60.-j; 42.15.Eq; 42.0.Lx
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Agradecimientos
Agradecemos a Ignacio Juárez y Mauro Landa la ayuda proporcionada. SVM agradece al CONACYT por el apoyo otorgado mediante proyecto 40086-F. JCR agradece también al CONACYT el apoyo otorgado mediante proyecto 5880-J.
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