Información del autor
Autor Martínez Herrero, Rosario |
Documentos disponibles escritos por este autor (51)
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Piquero Sanz, Gemma María ; Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario | Elsevier Science BV | 2006-09-01Several overall parameters are introduced to characterize the linear or circular polarization content of a non-uniformly totally polarized beam over the region of its wavefront where the irradiance is significant. These figures of merit are dete[...]texto impreso
Serna Galán, Julio ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | The Optical Society Of America | 1991-07Within the formalism of the Wigner distribution function, a new parameter is proposed, which characterizes arbitrary tridimensional partially coherent beams and is invariant through ABCD optical systems. The relationship between such a parameter[...]texto impreso
Serna Galán, Julio ; Piquero Sanz, Gemma María ; Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario | Chapman & Hall Ltd. | 1996-08The influence of super-Gaussian apertures on the beam power, beam size, beam quality factor and kurtosis parameter of Hermite-Gauss mode beams and Gauss Schell-model fields is investigated in detail.texto impreso
Piquero Sanz, Gemma María ; Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario | SPIE - International Society of Optical Engineering | 1996As is well-known, pure-phase transmittances are not, in general, first-order optical systems. It thus seems that a simple ABCD-propagation law cannot be applied to this kind of transmittance. In other words, such optical elements could not be ch[...]texto impreso
Piquero Sanz, Gemma María ; Movilla Serrano, Jesús María ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | Elsevier Science BV | 1998-04-15A new overall parameter is defined, namely, the generalized degree of polarization, which involves the spatial distribution of the polarization of a light beam. This parameter is introduced on the basis of a general treatment recently proposed [[...]texto impreso
Piquero Sanz, Gemma María ; Mejías López, Jesús Ángel ; Martínez Herrero, Rosario ; Movilla Serrano, Jesús María | Pergamon-Elsevier Sciance Ltd | 2002We present an approach for describing the spatial structure of partially polarized light fields. Unlike the treatments usually encountered in the literature, in which the polarization state is represented by position-dependent functions, the for[...]texto impreso
Piquero Sanz, Gemma María ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | IOP Publishing Ltd. | 2004-03On the basis of the second-order intensity moments formalism, the relationship between the spatial structure and the overall polarization characteristics of partially polarized Gaussian Schell-model beams of a certain kind has been investigated.[...]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
Piquero Sanz, Gemma María ; Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario | Elsevier Science BV | 1996-08-15The propagation laws of the intensity moments of a laser beam through ABCD optical systems are generalized to include pure phase transmittances. This is done by representing the behaviour of such transmittances by means of a 4 x 4 matrix, hi, wh[...]texto impreso
Sande, J.C,G. de ; Martínez Herrero, Rosario ; Piquero Sanz, Gemma María ; Santarsiero, Massimo ; Gori, Franco | Optical Society of America | 2019-02-18Partially coherent pseudo-Schell model sources are introduced and analyzed. They present radial symmetry and coherence characteristics depending on the difference between the radial distances of two points from the source center. As a consequenc[...]texto impreso
Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario ; Bernabeu Martínez, Eusebio | American Physical Society | 1986-03A novel type of optical bistable configuration, namely the so-called double-ring (DR) device, is presented. The stationary solutions in the purely absorptive case for a homogeneously broadened atomic system are derived. In the mean-field limit i[...]texto impreso
Serna Galán, Julio ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | SPIE--The International Society for Optical Engineering | 1993Beam quality behavior of Hermite-Gauss modes and Gauss Schell-model fields propagating through super-Gaussian apertures are analyzed.texto impreso
Piquero Sanz, Gemma María ; Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario | Elsevier Science BV | 1994-02-15The beam quality parameter of gaussian fields propagating through axicons is investigated. A simple analytical formula is derived for the output quality parameter in terms of the input beam width, refractive index of the axicon material and the [...]texto impreso
Piquero Sanz, Gemma María ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | SPIE--The International Society for Optical Engineering | 2003Use of anisotropic pure phase plates to improve the quality parameter of certain partially coherent and partially polarized beams is investigated. Analytical expressions for the beam quality after propagation through these anisotropic transmitta[...]texto impreso
Piquero Sanz, Gemma María ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | The Optical Society of America (OSA) | 1992-12-01The effects that quartic phase distortions produce in the beam-quality parameter of partially coherent symmetric-intensity beams are studied. An analytical expression for the beam-quality parameter at the output plane of a pure phase plate with [...]texto impreso
Piquero Sanz, Gemma María ; Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario | Elsevier Science BV | 1994-04-15Sharpness changes of the spatial profile of a gaussian beam induced by spherically aberrated lenses are investigated in terms of the so-called kurtosis parameter. It is shown both theoretically and experimentally that, after a single aberrated l[...]texto impreso
Encinas Sanz, Fernando ; Serna Galán, Julio ; Mejías Arias, Pedro Miguel ; Martínez Herrero, Rosario ; Martínez, C. | Chapman & Hall Ltd. | 1997-09A simple analytical model is proposed to describe the transversal spatial structure of a tridimensional rotationally symmetric pulsed beam. The spatial behaviour of the pulse amplitude is shown to be linked to its (measurable) second- and higher[...]texto impreso
Piquero Sanz, Gemma María ; Martínez Herrero, Rosario ; Sande, J.C.G de ; Santarsiero, Massimo | Optical Society of America | 2020-04-01Polarization of a light beam is traditionally studied under the hypothesis that the state of polarization is uniform across the transverse section of the beam. In such a case, if the paraxial approximation is also assumed, the propagation of the[...]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
Serna Galán, Julio ; Encinas Sanz, Fernando ; Martínez Herrero, Rosario ; Martin Mejías, Pedro | Optical Society of America | 2001-07The evolution of the intensity profile of transversely excited atmospheric CO_2 laser pulses is investigated within the intensity moment formalism. The beam quality factor M_2 is used to study the mode evolution. Attention is focused on the infl[...]texto impreso
Serna Galán, Julio ; Martínez, C. ; Encinas Sanz, Fernando ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | IEEE-Inst Electrical Electronics Engineers Inc. | 1998-10The time evolution of the transversal modes in a TEA CO_2 laser cavity has been investigated from the analysis of the time-varying beam quality factor M^2 of the emitted pulses. The experiments reveal a significant change in this parameter durin[...]texto impreso
Martínez Herrero, Rosario ; Carnicer, Artur ; Juvells, Ignasi ; Sanz Ortiz, Ángel Santiago | The Optical Society Of America | 2020-09-29In the analysis of the on-axis intensity for a highly focused optical field, it is highly desirable to deal with effective relations aimed at characterizing the field behavior in a rather simple fashion. Here, a novel and adequate measure for th[...]