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Martínez Herrero, Rosario ; Maluenda, David ; Juvells, Ignasi ; Carnicer, Artur | IEEE Computer Society | 2019-02-18According to intensity consideration along the propagation axis, we derived mathematical conditions for a family of modulating functions able to produce needles of arbitrary length, sub-wavelength width and almost constant irradiance. These func[...]texto impreso
Maluenda, David ; Juvells, Ignasi ; Martínez Herrero, Rosario ; Carnicer, Artur | Optical Society American | 2019-05-15Optical needles produced by means of diffractive technology might display limited quality and uniformity. It has been suggested that the bulky optical elements present on these setups can be responsible of such behavior. In particular, issues su[...]texto impreso
Maluenda, David ; Carnicer, Artur ; Jubells, Ignasi ; Martínez Herrero, Rosario | Spie-Int Soc Optical Engineering | 2017In this communication we analyze the light field distribution of a highly focused radially polarized beam when passes through a linear polarizer. The polarizer is modeled as a plane-parallel uniaxial absorbing medium with the optical axis parall[...]texto impreso
Martínez Herrero, Rosario ; Jubells, Ignasi ; Maluenda, David ; Carnicer, Artur | Spie-Int Soc Optical Engineering | 2019In the present communication, we describe how to produce long light distributions in the focal area of a high numerical aperture optical system using a custom modulation function with spiral charge. This analysis expands our previous development[...]texto impreso
González de Sande, Juan Carlos ; Martínez Herrero, Rosario ; Piquero Sanz, Gemma María ; Maluenda, David | Scitepress | 2017A new model of physically realizable electromagnetic source is proposed. The source is partially coherent and non-uniformly totally polarized. The coherence and polarization characteristics of this new source are analyzed. The spatial coherence [...]texto impreso
Santarsiero, Massimo ; Martínez Herrero, Rosario ; Maluenda, David ; González de Sande, J.C. ; Piquero Sanz, Gemma María ; Gori, F. | Optical Soc Amer | 2017-04-15A new class of partially coherent light sources is introduced. At the source plane, they exhibit perfect coherence along any annulus that is concentric to the source center. Between two points at different distances from the center, coherence ca[...]texto impreso
Martínez Herrero, Rosario ; Maluenda, David ; Piquero Sanz, Gemma María ; González de Sande, Juan Carlos ; Santarsiero, Massimo ; Gori, Franco | Spie-Int Soc Optical Engineering | 2017In this work a new type of partially polarized and partially coherent sources is proposed. The coherence characteristics of these sources are dependent on the difference of the radial distances from the source center of the two points to be comp[...]texto impreso
Martínez Herrero, Rosario ; Maluenda, David ; Juvells, Ignasi ; Carnicer, Artur | Nature Publishing Group | 2017-02-13Polarisers are one of the most widely used devices in optical set-ups. They are commonly used with paraxial beams that propagate in the normal direction of the polariser plane. Nevertheless, the conventional projection character of these devices[...]texto impreso
Martínez Herrero, Rosario ; Maluenda, David ; Carnicer, Artur | Nature Publishing Group | 2018-02-08We introduce a new method for producing optical needles with tunable length and almost constant irradiance based on the evaluation of the on-axis power content of the light distribution at the focal area. According to theoretical considerations,[...]texto impreso
Martínez Herrero, Rosario ; Maluenda, David ; Piquero Sanz, Gemma María ; González de Sande, Juan Carlos | IEEE | 2016In this work a physically realizable pseudo Schell-model planar light source with optical vortex is proposed. The characteristics of irradiance and coherence of the beam radiated by this type of source are analysed at the source plane and upon f[...]
