We propose a programmable diffractive lens written onto a liquid crystal display (LCD) that is able to provide equal focal lengths for several wavelengths simultaneously. To achieve this goal it is necessary that the LCD operate in the phase-only regime simultaneously for the different wavelengths. We design the appropriate lens for each wavelength, and then the lenses are spatially multiplexed onto the LCD. Various multiplexing schemes have been analyzed, and the random scheme shows the best performance. We further show the possibility of finely tuning the chromaticity of the focal spot by changing the relative weights of the multiplexing among the various wavelengths. © 2006 Optical Society of America.
Documento: | Artículo |
Título: | Achromatic diffractive lens written onto a liquid crystal display |
Autor: | Márquez, A.; Iemmi, C.; Campos, J.; Yzuel, M.J. |
Filiación: | Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, Apartado 99, 03080 Alicante, Spain Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina Departamento de Física, Universidad Autónoma de Barcelona, 08193 Bellaterra, Spain |
Palabras clave: | Achromatic diffractive lens; Chromaticity; Diffractive optics; Liquid crystal displays; Multiplex radio telephone; Tuning; Lenses |
Año: | 2006 |
Volumen: | 31 |
Número: | 3 |
Página de inicio: | 392 |
Página de fin: | 394 |
DOI: | http://dx.doi.org/10.1364/OL.31.000392 |
Título revista: | Optics Letters |
Título revista abreviado: | Opt. Lett. |
ISSN: | 01469592 |
CODEN: | OPLED |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01469592_v31_n3_p392_Marquez |