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Spie-Int Soc Optical Engineering |
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Gil de Paz, Armando ; Gallego Maestro, Jesús ; Castillo Morales, África ; Eliche Moral, María del Carmen ; Pascual, S. ; Sánchez Penim, A. ; Villar, V. ; Zamorano Calvo, Jaime ; Cardiel López, Nicolás ; Cava, A. ; Pérez González, Pablo Guillermo | Spie-Int Soc Optical Engineering | 2012In these proceedings we give a summary of the characteristics and current status of the MEGARA instrument, the future optical IFU and MOS for the 10.4-m Gran Telescopio Canarias (GTC). MEGARA is being built by a Consortium of public research ins[...]texto impreso
MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Castillo Morales, África ; Cruz García, Jesús Manuel de la ; Esteban San Román, Segundo ; López Orozco, José Antonio ; Pascual, S. ; Picazo, P. ; Sánchez-Penim, A. ; Zamorano Calvo, Jaime ; Pérez González, Pablo Guillermo ; otros, ... | Spie-Int Soc Optical Engineering | 2016MEGARA (Multi-Espectrografo en GTC de Alta Resolucion para Astronomia) is an optical Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) designed for the GTC 10.4m telescope in La Palma that is being built by a Consortium led by UCM (S[...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Bouquin, A. ; Carbajo, J. ; Cardiel López, Nicolás ; Castillo Morales, África ; Esteban San Román, Segundo ; López Orozco, José Antonio ; Pascual, S. ; Picazo, P. ; Sánchez Penim, Ainhoa ; Velázquez, M. ; Zamorano Calvo, Jaime ; Catalán Torrecilla, Cristina ; Dullo, Bililign ; Pérez González, P.G. ; Roca Fábrega, Santi | Spie-Int Soc Optical Engineering | 2018MEGARA is the new generation IFU and MOS optical spectrograph built for the 10.4m Gran Telescopio CANARIAS (GTC). The project was developed by a consortium led by UCM (Spain) that also includes INAOE (Mexico), IAA-CSIC (Spain) and UPM (Spain). T[...]texto impreso
Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Eliche Moral, María del Carmen ; Pascual, S. | Spie-Int Soc Optical Engineering | 2012The Mid-resolution InfRAreD Astronomical Spectrograph (MIRADAS, a near-infrared multi-object echelle spectrograph operating at spectral resolution R=20,000 over the 1-2.5 mu m bandpass) was selected in 2010 by the Gran Telescopio Canarias (GTC) [...]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
Carrasco, Esperanza ; Sánchez Blanco, Ernesto ; García Vargas, María Luisa ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Páez, Gonzalo ; Zamorano, Jaime ; Castro, Jorge | Spie-Int Soc Optical Engineering | 2011MEGARA is a multi-object spectrograph project for the 10.4m Gran Telescopio Canarias with medium to high resolution: R ~ 5600 - 17000. The instrument operates in three modes that cover different sky areas and that can run simultaneously: (1) the[...]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
MEGARA is the new IFU and multiobject spectrograph for Gran Telescopio Canarias. The spectograph will offer spectral resolution R-fwhm similar to 6,000, 12,000 and 18,700. Except for the optical fibers and microlenses, the complete MEGARA optica[...]texto impreso
Tkachuk, A. M. ; Razumova, I. K. ; Mirzaeva, A. A. ; Novikov, G. E. ; Orlov2, O. A. ; Malyshev, Andrey ; Gapontsev, V. P. | Spie-Int Soc Optical Engineering | 2002Steady-state population of 7 lowest excited erbium. levels in LiY¬¬_(1-x)Er_xF_4 (YLF:Er^(3+) (x=0.003-1) crystals was studied under upconversion. CW InGaAs laser-diode pumping with varied power density. Theoretical and experimental concentratio[...]texto impreso
García Vargas, María Luisa ; Pérez Calpena, Ana ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Carrasco, Esperanza ; Cedazo, Raquel ; Iglesias, Jorge | Spie-Int Soc Optical Engineering | 2014The project management of complex instruments for ground-based large telescopes is a challenge itself. A good management is a clue for project success in terms of performance, schedule and budget. Being on time has become a strict requirement fo[...]texto impreso
The Cherenkov Telescope Array (CTA) observatory will be one of the biggest ground-based very-high-energy (VHE) gamma-ray observatory. CTA will achieve a factor of 10 improvement in sensitivity from some tens of GeV to beyond 100 TeV with respect[...]texto impreso
Tulloch, S. ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Zamorano Calvo, Jaime ; Tapia, C. | Spie-Int Soc Optical Engineering | 2012A CCD test-bench has been built at the Universidad Complutense's LICA laboratory. It is initially intended for commissioning of the MEGARA(1) (Multi-Espectrografo en GTC de Alta Resolucion para Astronomia) instrument but can be considered as a g[...]texto impreso
Makarov, Valeri A. ; Castellanos, Nazareth P. ; Patane, Luca ; Velarde, Manuel G. | Spie-Int Soc Optical Engineering | 2007Common design of a robot searching for a target emitting sensory stimulus (e.g. odor or sound) makes use of the gradient of the sensory intensity. However, the intensity may decay rapidly with distance to the source, then weak signal-to-noise ra[...]texto impreso
The case of two identical and coaxial Gaussian beams is studied in order to consider the effects of diffraction in spatial beam characterization.