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Autor Mejías Arias, Pedro Miguel |
Documentos disponibles escritos por este autor (33)
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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[...]![]()
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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.![]()
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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 [...]![]()
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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[...]![]()
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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 [...]![]()
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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[...]![]()
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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[...]![]()
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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[...]