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Enhancement of the broadband modulation diffraction efficiency of liquid-crystal displays
Albero, Jorge (Universidad Miguel Hernández de Elche. Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica)
Moreno, Ignacio (Universidad Miguel Hernández de Elche. Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica)
Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física)

Data: 2012
Resum: We report a method to maximize the broadband modulation diffraction efficiency of liquid-crystal spatial light modulators for polychromatic applications requiring a wide range of wavelengths. An optimized encoding pattern based on the minimum Euclidean projection principle is applied in order to increase the diffraction efficiency at large wavelengths that exhibit phase modulation depth lower than 2p. We demonstrate modulation efficiencies over 80% on a wavelength range from 454 to 633 nm, which can reach up to 98% when the range is reduced to 60 nm. Experimental results are shown to confirm the calculations.
Ajuts: Ministerio de Ciencia e Innovación FIS2009-13955-C02-01
Ministerio de Ciencia e Innovación FIS2009-13955-C02-02
Drets: Tots els drets reservats.
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: Òptica
Publicat a: Optics letters, Vol. 37, No. 1 (1 January 2012) , p. 52-54, ISSN 0146-9592

DOI: 10.1364/OL.37.000052


3 p, 409.3 KB

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