Dr. Fernando Garfias Profile

Dr. Fernando Garfias

Academic at Univ Nacional Autónoma de México

SPIE Involvement:

Author

Publications (27)

Proceedings Article | 26 August 2024 Poster + Paper

Poster + Paper

Relevance of the infrastructure in laboratories and manufacturing workshops for the integration and validation of astronomical instruments

Carolina Keiman, Alejandro Farah Simon, Luis Álvarez-Nuñez, Fernando Ángeles, Abel Bernal, Oscar Chapa, Salvador Cuevas, Carlos Espejo, Rubén Flores-Meza, José Franco, Leonardo Garcés, Fernando Garfias, Jesús González, Arturo Iriarte, Rosalía Langarica, Gerardo Lara, William Lee, Luis Martínez-Vázquez, Jaime Ruíz-Díaz-Soto, Beatriz Sánchez, Silvio Tinoco, Alan Watson

Proceedings Volume 13100, 1310079 (2024) https://doi.org/10.1117/12.3019375

KEYWORDS: Equipment, Manufacturing, Design, Optics manufacturing, Astronomy, Astronomical instrumentation, Observatories, Atmospheric Cherenkov telescopes, Polishing, Telescopes

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Proceedings Article | 14 December 2020 Poster + Paper

Poster + Paper

Alignment of the optical system of the 9.7-m prototype Schwarzchild-Coulder Telescope

C. Adams, R. Alfaro, G. Ambrosi, M. Ambrosio, C. Aramo, W. Benbow, B. Bertucci, E. Bissaldi, M. Bitossi, A. Boiano, C. Bonavolontá, R. Bose, A. Brill, J. Buckley, K. Byrum, R. A. Cameron, M. Capasso, M. Caprai, C. Covault, L. Di Venere, S. Fegan, Q. Feng, E. Fiandrini, A. Furniss, M. Garczarczyk, F. Garfias, A. Gent, N. Giglietto, F. Giordano, M. González, R. Halliday, T. B. Humensky, D. Ribeiro, O. Hervet, G. Hughes, M. Ionica, A. Iriarte, W. Jin, P. Kaaret, D. Kieda, B. Kim, M. Limon, S. Loporchio, T. Meures, B. A. Mode, R. Mukherjee, D. Nieto, A. Okumura, N. Otte, N. La Palombara, F. R. Pantaleo, R. Paoletti, G. Pareschi, A. Petrashyk, J. Powell, E. Roache, J. Rousselle, A. Rugliancich, J. Ruíz-Díaz-Soto, M. Santander, S. Schlenstedt, S. Scuderi, R. Shang, G. Sironi, B. Stevenson, L. Stiaccini, L. Taylor, L. Tosti, G. Tovmassian, V. Vagelli, M. Valentino, J. Vandenbroucke, V. Vassiliev, S. Wakely, P. Wilcox, D. Williams, P. Yu

Proceedings Volume 11445, 114456A (2020) https://doi.org/10.1117/12.2564653

KEYWORDS: Atmospheric Cherenkov telescopes, Telescopes, Optical alignment, Optical instrument design, Gamma radiation, Point spread functions, Cameras, Silicon photomultipliers, Mirrors, Alignment procedures

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Proceedings Article | 20 August 2020 Presentation + Paper

Presentation + Paper

Verification of the optical system of the 9.7-m prototype Schwarzschild-Couder Telescope

C. Adams, R. Alfaro, G. Ambrosi, M. Ambrosio, C. Aramo, W. Benbow, B. Bertucci, E. Bissaldi, M. Bitossi, A. Boiano, C. Bonavolontà, R. Bose, A. Brill, J. Buckley, K. Byrum, R. Cameron, M. Capasso, M. Caprai, C. Covault, L. Di Venere, S. Fegan, Q. Feng, E. Fiandrini, A. Furniss, M. Garczarczyk, F. Garfias, A. Gent, N. Giglietto, F. Giordano, M. González, R. Halliday, O. Hervet, G. Hughes, T. Humensky, M. Ionica, A. Iriarte, W. Jin, P. Kaarat, D. Kieda, B. Kim, F. Licciulli, M. Limon, S. Loporchio, V. Masone, T. Meures, B. A. W. Mode, R. Mukherjee, D. Nieto, A. Okumura, N. Otte, N. La Palombara, F. Pantaleo, R. Paoletti, G. Pareschi, A. Petrashyk, J. Powell, K. Powell, D. Ribeiro, E. Roache, J. Rousselle, A. Rugliancich, J. Ruíz-Díaz-Soto, M. Santander, S. Schlenstedt, S. Scuderi, R. Shang, G. Sironi, B. Stevenson, L. Stiaccini, L. Taylor, L. Tosti, G. Tovmassian, V. Vagelli, M. Valentino, J. Vandenbroucke, V. Vassiliev, S. Wakely, P. Wilcox, D. Williams, P. Yu

Proceedings Volume 11488, 1148805 (2020) https://doi.org/10.1117/12.2568134

KEYWORDS: Mirrors, Cameras, Stars, Telescopes, Optical alignment, Atmospheric Cherenkov telescopes, Point spread functions

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Proceedings Article | 24 September 2012 Paper

Paper

OSIRIS tunable imager and spectrograph for the GTC: from design to commissioning

Beatriz Sánchez, Marta Aguiar-González, Roberto Barreto, Santiago Becerril, Joss Bland-Hawthorn, Angel Bongiovanni, Jordi Cepa, Santiago Correa, Oscar Chapa, Alessandro Ederoclite, Carlos Espejo, Alejandro Farah, Ana Belén Fragoso, Patricia Fernández, Rubén Flores, F. Javier Fuentes, Fernando Gago, Fernando Garfias, José Vicente Gigante, Jesús González, Victor González-Escalera, Belén Hernández, Elvio Hernandez, Alberto Herrera, Guillermo Herrera, Enrique Joven, Rosalia Langarica, Gerardo Lara, José Carlos López, Roberto López, Carmelo Militellon, Heidy Moreno, Lorenzo Peraza, Angeles Pérez, Jaime Pérez, José Luis Rasilla, Josefina Rosich, Carlos Tejada, Silvio Tinoco, Txinto Vaz, Alejandro Villegas

Proceedings Volume 8446, 84464T (2012) https://doi.org/10.1117/12.926676

KEYWORDS: Cameras, Tunable filters, Charge-coupled devices, Imaging spectroscopy, Sensors, Telescopes, Spectroscopes, Imaging systems, Optical filters, Mechanical engineering

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Proceedings Article | 17 September 2012 Paper

Paper

A water quality monitoring system for HAWC

F. Garfias, A. Bernal, S. Tinoco, A. Iriarte

Proceedings Volume 8443, 844339 (2012) https://doi.org/10.1117/12.926552

KEYWORDS: Sensors, Integrating spheres, Water, Quality systems, Atmospheric Cherenkov telescopes, Semiconductor lasers, Glasses, Observatories, Signal attenuation, Particles

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Proceedings Article | 23 July 2008 Paper

Paper

Thermal gradient analysis for the ESOPO spectrograph

A. Farah, J. Jesús González, G. Sierra, J. Hernández, M. Pedrayes, J. Echevarría, R. Costero, G. Avila, M. Arroyo, F. Cobos, E. Colorado, A. Cordova, O. Chapa, B. Garcia, F. Garfias, F. Granados, G. Guisa, E. Luna, B. Martínez, R. Michel, F. Murillo, F. Pérez, S. Quechol, F. Quirós, C. Tejada

Proceedings Volume 7014, 70146Y (2008) https://doi.org/10.1117/12.790213

KEYWORDS: Spectrographs, Finite element methods, 3D modeling, Temperature metrology, Solid modeling, Interfaces, Computer aided design, Convection, Telescopes, Cameras

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Proceedings Article | 21 July 2008 Paper

Paper

Virtualization as an alternative for astronomical software integration

Luis Martínez, Abel Bernal, Fernando Garfias

Proceedings Volume 7019, 70192W (2008) https://doi.org/10.1117/12.790108

KEYWORDS: Computing systems, Telescopes, Operating systems, Astronomical software, Software development, Adaptive optics, Observatories, Control systems, Human-machine interfaces, CCD cameras

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Proceedings Article | 17 July 2008 Paper

Paper

GUIELOA, the Mexican adaptive optics system: expected performance and operation

Julien H. V. Girard, Alan Watson, Luís Carlos Álvarez, Oscar Chapa, Salvador Cuevas, Ruben Flores, Fernando Garfias, Arturo Iriarte, Luís Artemio Martínez, Beatriz Sánchez

Proceedings Volume 7015, 701560 (2008) https://doi.org/10.1117/12.788595

KEYWORDS: Adaptive optics, Stars, Telescopes, Diffraction, Imaging systems, Charge-coupled devices, Mirrors, Optical imaging, Sensors, Atmospheric optics

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Proceedings Article | 11 July 2008 Paper

Paper

Slit-mask, acquisition, and guiding zone mechanisms of the ESOPO spectrograph

M. Pedrayes, J. Gonzalez, E. Luna, F. Quiroz, G. Sierra, M. Arroyo, G. Avila, F. Cobos, E. Colorado, A. Córdova, R. Costero, O. Chapa, J. Echevarria, A. Farah, B. García, F. Garfias, G. Guisa, F. Granados, B. Martínez, R. Michel, F. Murillo, J. Murillo, S. Quechol, C. Tejada

Proceedings Volume 7014, 70145H (2008) https://doi.org/10.1117/12.789867

KEYWORDS: Spectrographs, Telescopes, Finite element methods, Cameras, Sensors, Calibration, Tolerancing, Actuators, Error analysis, Space telescopes

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Proceedings Article | 11 July 2008 Paper

Paper

Structure of the spectrograph ESOPO

G. Sierra, A. Farah, J. Gonzalez, M. Pedrayes, M. Arroyo, G. Avila, F. Cobos, E. Colorado, A. Córdova, R. Costero, O. Chapa, J. Echevarria, B. García, F. Garfias, G. Guisa, F. Granados, E. Luna, B. Martínez, R. Michel, F. Murillo, J. Murillo, S. Quechol, F. Quiroz, C. Tejada

Proceedings Volume 7014, 70145G (2008) https://doi.org/10.1117/12.789683

KEYWORDS: Finite element methods, Tolerancing, Mechanical engineering, Computer aided design, Spectrographs, Cameras, Error analysis, Optical components, Telescopes, Image processing

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Proceedings Article | 9 July 2008 Paper

Paper

The spectrograph ESOPO: scientific goals, high-level requirements, and introduction to the design

J. Echevarría, A. Farah, R. Costero, J. González, G. Avila, M. Arroyo, F. Cobos, E. Colorado, A. Córdova, O. Chapa, B. García, F. Garfias, F. Granados, G. Guisa, E. Luna, B. Martínez, R. Michel, F. Murillo, M. Pedrayes, F. Pérez, S. Quechol, F. Quirós, G. Sierra, C. Tejada

Proceedings Volume 7014, 70140P (2008) https://doi.org/10.1117/12.790217

KEYWORDS: Spectrographs, Spectral resolution, Sensors, Optical design, Cameras, Telescopes, Galactic astronomy, Astronomy, Control systems, Neon

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Proceedings Article | 9 July 2008 Paper

Paper

Tonantzintla's Observatory Astronomy Teaching Laboratory project

F. Garfias, A. Bernal, L. Martínez, L. Sánchez, H. Hernández, R. Langarica, A. Iriarte, J. H. Peña, S. Tinoco, F. Ángeles

Proceedings Volume 7017, 70171F (2008) https://doi.org/10.1117/12.790203

KEYWORDS: Telescopes, Astronomy, Observatories, Observational astronomy, Astronomical telescopes, Software development, CCD cameras, Spectrographs, Sensors, Astronomical instrumentation

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Proceedings Article | 27 June 2006 Paper

Paper

Active remote observing system for the 1-m telescope at Tonantzintla Observatory

Abel Bernal, Luis Martínez, Héctor Hernández, Fernando Garfias, Fernando Ángeles

Proceedings Volume 6274, 62741R (2006) https://doi.org/10.1117/12.671899

KEYWORDS: Telescopes, Observatories, Image acquisition, Human-machine interfaces, Stars, Astronomy, CCD cameras, Astronomical telescopes, Cameras, Control systems

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Proceedings Article | 23 June 2006 Paper

Paper

Site acceptance of the commissioning instrument for the Gran Telescopio Canarias

Salvador Cuevas, Beatriz Sánchez, Vicente Bringas, Carlos Espejo, Rubén Flores, Oscar Chapa, Gerardo Lara, Armando Chavoya, Gustavo Anguiano, Sadot Arciniega, Ariel Dorantes, José Luis Gonzalez, Juan Manuel Montoya, Rafael Toral, Hugo Hernández, Roberto Nava, Nicholas Devaney, Javier Castro, Lluis Cavaller, Alejandro Farah, Javier Godoy, Francisco Cobos, Carlos Tejada, Fernando Garfias

Proceedings Volume 6267, 62670X (2006) https://doi.org/10.1117/12.672545

KEYWORDS: Collimators, Charge-coupled devices, Telescopes, Optical filters, Image segmentation, Cameras, Glasses, Calibration, Lanthanum, Control systems

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Proceedings Article | 10 February 2006 Paper

Paper

The commissioning instrument for the Gran Telescopio Canarias: made in Mexico

Salvador Cuevas, Beatriz Sánchez, Vicente Bringas, Carlos Espejo, Rubén Flores, Oscar Chapa, Gerardo Lara, Armando Chavoya, Gustavo Anguiano, Sadot Arciniega, Ariel Dorantes, José Gonzalez, Juan Montoya, Rafael Toral, Hugo Hernández, Roberto Nava, Nicolas Devaney, Javier Castro, Luis Cavaller, Alejandro Farah, Javier Godoy, Francisco Cobos, Carlos Tejada, Fernando Garfias

Proceedings Volume 6046, 604628 (2006) https://doi.org/10.1117/12.674622

KEYWORDS: Optics manufacturing, Collimators, Telescopes, Charge-coupled devices, Electronics, Polishing, Optical filters, Glasses, Lanthanum, Optical components

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Proceedings Article | 7 July 2004 Paper

Paper

San Pedro Mártir: astronomical site evaluation

Irene Cruz-Gonzales, Remy Avila, Mario Tapia, Fernando Angeles, Esperanza Carrasco, Rodolphe Conan, Rafael Costero, D. Cruz, Salvador Cuevas, J. Echevarria, Fernando Garfias, S. Gonzalez, Leonel Gutierrez, Oswaldo Harris, D. Hiriart, F. Ibanez, Luis Martinez, Elena Masciadri, Raul Michel, Valeri Orlov, L. Parrao, Beatriz Sanchez, Leonardo Sanchez, Marc Sarazin, W. Schuster, Valeri Voitsekhovich, A. Agabi, Max Azouit, Julien Borgnino, Francois Martin, Jean Vernin, Aziz Ziad

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566347

KEYWORDS: Astronomy, Turbulence, Telescopes, Observatories, Atmospheric optics, Optical turbulence, Meteorology, Opacity, Atmospheric turbulence, Scanning probe microscopy

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Proceedings Article | 7 March 2003 Paper

Paper

Dual infrared camera for near- and mid-infrared observations

Luis Salas, Leonel Gutierrez, Mario Tapia, Irene Cruz-Gonzales, Elfego Ruiz Schneider, Esteban Luna-Aguilar, Jorge Valdez, Rafael Costero, Erika Sohn, Francisco Lazo, Joaquin Bohigas, B. Garcia, J. Murillo, Fernando Garfias, Oscar Chapa, Salvador Zazueta, Victor Garcia, Francisco Cobos, Fernando Quiros, Arturo Iriarte, Carlos Tejada

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461962

KEYWORDS: Sensors, Cameras, Infrared cameras, Infrared imaging, Telescopes, Electronics, Mid-IR, Mirrors, Digital signal processing, Optical filters

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Proceedings Article | 30 January 2003 Paper

Paper

Commissioning camera for the Gran Telescopio Canarias

Salvador Cuevas, Carlos Espejo, Beatriz Sanchez, Ruben Flores-Meza, Gerardo Lara, Alejandro Farah Simon, Javier Godoy, Oscar Chapa, Carlos Tejada, Francisco Cobos, Fernando Garfias, Vicente Bringas, Armando Chavoya, Gustavo Anguiano, Sadot Arciniega, Ariel Dorantes, Jose Luis Gonzalez, Juan Manuel Montoya, Rafael Toral, Hugo Hernandez, Roberto Nava, Nicholas Devaney, Javier Castro, Luis Cavaller

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.459872

KEYWORDS: Cameras, Charge-coupled devices, Optical filters, Collimators, Telescopes, Image segmentation, Sensors, CCD image sensors, CCD cameras, Image filtering

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Proceedings Article | 2 August 2000 Paper

Paper

Co-phasing of segmented mirror telescopes with curvature sensing

Valeri Orlov, Salvador Cuevas, Fernando Garfias, Valeri Voitsekhovich, Leonardo Sanchez

Proceedings Volume 4004, (2000) https://doi.org/10.1117/12.393930

KEYWORDS: Mirrors, Segmented mirrors, Telescopes, Image segmentation, Wavefront distortions, Signal to noise ratio, Wavefront reconstruction, Atmospheric turbulence, Device simulation, Wavefronts

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Proceedings Article | 20 July 2000 Paper

Paper

Laboratory demonstration of curvature method for segmented telescopes

Fernando Garfias, Salvador Cuevas, Valeri Orlov, Leonardo Sanchez

Proceedings Volume 4003, (2000) https://doi.org/10.1117/12.391535

KEYWORDS: Mirrors, Image segmentation, Telescopes, Segmented mirrors, Calibration, Interferometers, Optical interferometry, Adaptive optics, Optical testing, Spatial resolution

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Proceedings Article | 20 July 2000 Paper

Paper

Curvature equation for a segmented telescope

Salvador Cuevas, Valeri Orlov, Fernando Garfias, Valeri Voitsekhovich, Leonardo Sanchez

Proceedings Volume 4003, (2000) https://doi.org/10.1117/12.391518

KEYWORDS: Telescopes, Wavefronts, Image segmentation, Mirrors, Interfaces, Adaptive optics, Diffraction, Numerical simulations, Segmented mirrors, Indium oxide

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Proceedings Article | 7 July 2000 Paper

Paper

Adaptive optics tip-tilt system with fuzzy control

Ruben Flores-Meza, Pablo Sotelo, Fernando Garfias, Salvador Cuevas, Leonardo Sanchez

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390360

KEYWORDS: Adaptive optics, Control systems, Fuzzy logic, Telescopes, Sensors, Actuators, Fuzzy systems, Data acquisition, Signal attenuation, Signal analysis

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Proceedings Article | 11 September 1998 Paper

Paper

University of Mexico adaptive optics program

Salvador Cuevas, Pablo Sotelo, Fernando Garfias, Arturo Iriarte Valverde, Luis Martinez, Valeri Orlov, Valeri Voitsekhovich, Oscar Chapa, Silvio Tinoco, Jean Vernin, Remy Avila, Franck Marchis, J. Elon Graves, Malcolm Northcott, Francois Roddier, Claude Roddier

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321690

KEYWORDS: Adaptive optics, Telescopes, Observatories, Turbulence, Actuators, Deformable mirrors, Astronomy, Image segmentation, Mirrors, Scanning probe microscopy

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Proceedings Article | 11 September 1998 Paper

Paper

Fuzzy logic controller for the LOLA AO tip-tilt corrector system

Pablo Sotelo, Ruben Flores-Meza, Fernando Garfias, Salvador Cuevas

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321658

KEYWORDS: Fuzzy logic, Adaptive optics, Telescopes, Control systems, Actuators, Sensors, Device simulation, Magnetoencephalography, Mirrors, Analog electronics

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Proceedings Article | 21 August 1998 Paper

Paper

PUMILA: a near-infrared spectrograph for the kinematic study of the interstellar medium

Margarita Rosado, Irene Cruz-Gonzales, Luis Salas, Abel Bernal, Francisco Cobos Duenas, Fernando Garfias, Leonel Gutierrez, Rosalia Langarica, Esteban Luna-Aguilar, Elfego Ruiz Schneider, Erika Sohn, Carlos Tejada, Silvio Tinoco, Jorge Valdez

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317236

KEYWORDS: Kinematics, Fabry–Perot interferometers, Cameras, Galactic astronomy, Spectrographs, Fabry–Perot interferometry, Collimation, Telescopes, Sensors, Iron

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Proceedings Article | 9 July 1998 Paper

Paper

PUMA: the first results of a nebular spectrograph for the study of the kinematics of interstellar medium

Rosalia Langarica, Abel Bernal, Margarita Rosado, Francisco Cobos Duenas, Fernando Garfias, Leonel Gutierrez, Etienne LeCoarer, Carlos Tejada, Silvio Tinoco

Proceedings Volume 3355, (1998) https://doi.org/10.1117/12.316745

KEYWORDS: Telescopes, Cameras, Kinematics, Spectrographs, Optical components, Software development, Astronomy, Charge-coupled devices, Optical design, Collimators

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Proceedings Article | 1 June 1994 Paper

Paper

UNAM scanning Fabry-Perot interferometer (PUMA) for the study of interstellar medium

Rosalia Langarica, Abel Bernal, Francisco Cobos Duenas, Margarita Rosado, Silvio Tinoco, Fernando Garfias, Carlos Tejada, Leonel Gutierrez, Fernando Angeles

Proceedings Volume 2198, (1994) https://doi.org/10.1117/12.176743

KEYWORDS: Control systems, Telescopes, Fabry–Perot interferometry, Fabry–Perot interferometers, Calibration, Sensors, Optical components, Charge-coupled devices, Mirrors, Interference filters

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Showing 5 of 27 publications

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