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Depósito Digital de Documentos de la UAB	Encontrados 24 registros 21 - 24 ir al registro:	La búsqueda tardó 0.01 segundos.

21.

$Derivation of weighting coefficients for multiplexed phase-diffractive elements$

3 p, 273.6 KB

Derivation of weighting coefficients for multiplexed phase-diffractive elements / Carcolé, Eduard (Universitat Politècnica de Catalunya. Escola Universitària d'Òptica de Terrassa) ; Millán García-Varela, M. Sagrario (Universitat Politècnica de Catalunya. Escola Universitària d'Òptica de Terrassa) ; Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física)
We mathematically analyze the phase-only hologram constructed by taking the phase corresponding to the linear combination of two weighted phase functions. We show that this phase-only hologram may be written as a new linear combination for the original phase functions with new weights. [...]
1995 - DOI (Digital Object Identifier)

10.1364/OL.20.002360
Optics letters, Vol. 20, No. 23 (1 December 1995) , p. 2360-2362

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22.

3 p, 357.5 KB

Phase-only filter with improved discrimination / Ahouzi, Esmail (Universitat Autònoma de Barcelona. Departament de Física) ; Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física) ; Yzuel Giménez, María Josefa (Universitat Autònoma de Barcelona. Departament de Física)
The optimization of a phase-only filter (POF) in terms of discrimination capability is presented. The notion of a phase-difference histogram and its modification are proposed for selecting the support function of the POF. [...]
1994 - DOI (Digital Object Identifier)

10.1364/OL.19.001340
Optics letters, Vol. 19, No. 17 (1 September 1994) , p. 1340-1342

Registro completo -

23.

3 p, 463.8 KB

Optimal filter approximation by means of a phase-only filter with quantization / Kober, Vitaly (Universitat Autònoma de Barcelona. Departament de Física) ; Yaroslavsky, Leonid P. (National Institutes of Health (Bethesda, Estats Units d'Amèrica)) ; Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física) ; Yzuel Giménez, María Josefa (Universitat Autònoma de Barcelona. Departament de Física)
Approximate filters based on a phase-only filter for reliable recognition of objects are proposed. Good light efficiency and discrimination capability close to that of the optimal filter can be obtained. [...]
1994 - DOI (Digital Object Identifier)

10.1364/OL.19.000978
Optics letters, Vol. 19, No. 13 (1 July 1994) , p. 978-980

Registro completo -

24.

3 p, 288.9 KB

Saturation spectroscopy in optically thick three-level gas media / Schmidt Iglesias, Carola (Universitat Autònoma de Barcelona. Departament de Física) ; Roso Franco, Luis (Universitat Autònoma de Barcelona. Departament de Física) ; Corbalán, R. (Ramón) (Universitat Autònoma de Barcelona. Departament de Física)
High-contrast transmission spectra arising from saturated absorption in optically thick Doppler-broadened three-level media are analyzed within the formalism of Maxwell-Bloch-type equations. It is found that although in the strong pumping engine propagation-induced line narrowing and light-shift elimination occur, spectral features lying within the natural linewidth cannot be resolved.
1990 - DOI (Digital Object Identifier)

10.1364/OL.15.000063
Optics letters, Vol. 15, No. 1 (1 January 1990) , p. 63-65

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