Left-handed metamaterial coatings for subwavelength-resolution imaging
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/33876
Título: | Left-handed metamaterial coatings for subwavelength-resolution imaging |
---|---|
Autor/es: | Zapata Rodríguez, Carlos Javier | Pastor Calle, David | Martínez Martínez, Luis Enrique | Miret, Juan Jose |
Grupo/s de investigación o GITE: | Óptica y Ciencias de la Visión |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Image formation theory | Metamaterials | Aberration compensation |
Área/s de conocimiento: | Óptica |
Fecha de publicación: | 30-ago-2012 |
Editor: | Optical Society of America |
Cita bibliográfica: | Journal of the Optical Society of America A. 2012, 29(9): 1992-1998. doi:10.1364/JOSAA.29.001992 |
Resumen: | We report on a procedure to improve the resolution of far-field imaging by using a neighboring high-index medium that is coated with a left-handed metamaterial. The resulting plot can also exhibit an enhanced transmission by considering proper conditions to retract backscattering. Based on negative refraction, geometrical aberrations are considered in detail since they may cause a great impact in this sort of diffraction-unlimited imaging by reducing its resolution power. We employ a standard aberration analysis to refine the asymmetric configuration of metamaterial superlenses. We demonstrate that low-order centrosymmetric aberrations can be fully corrected for a given object plane. For subwavelength-resolution imaging, however, high-order aberrations become of relevance, which may be balanced with defocus. Not only the point spread function but also numerical simulations based on the finite-element method support our theoretical analysis, and subwavelength resolution is verified in the image plane. |
Patrocinador/es: | This research was funded by the Spanish Ministry of Economy and Competitiveness under the project TEC2009-11635. |
URI: | http://hdl.handle.net/10045/33876 |
ISSN: | 1084-7529 (Print) | 1520-8532 (Online) |
DOI: | 10.1364/JOSAA.29.001992 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | This paper was published in Journal of the Optical Society of America A, and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/josaa/abstract.cfm?uri=josaa-29-9-1992. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1364/JOSAA.29.001992 |
Aparece en las colecciones: | INV - IMAOS+V - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2012_Zapata-Rodriguez_etal_JOSA-A.pdf | 709,11 kB | Adobe PDF | Abrir Vista previa | |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.