Dr. Jorge Castro-Ramos Profile

Dr. Jorge Castro-Ramos

Researcher at INAOE

SPIE Involvement:

Author

Publications (29)

Proceedings Article | 14 September 2018 Paper

Wavefront calculation from backscattering phase in a rough optical grid

J. Munoz-Lopez, J. Castro-Ramos

Proceedings Volume 10742, 107421H (2018) https://doi.org/10.1117/12.2321715

KEYWORDS: Wavefronts, Scattering, Backscatter, Monochromatic aberrations, Mirrors, Rayleigh scattering, Optical testing, Light scattering, Electromagnetism

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Proceedings Article | 20 September 2016 Paper

Wavefront analysis from backscattering phase in rough surfaces

J. Muñoz-Lopez, J. Castro-Ramos, A. Santiago-Alvarado, G. Diaz-Gonzalez

Proceedings Volume 9982, 99820W (2016) https://doi.org/10.1117/12.2237471

KEYWORDS: Backscatter, Wavefronts, Wavefront analysis, Geometrical optics, Mirrors, Scattering, Monochromatic aberrations, Einsteinium, Light scattering, Electromagnetism

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SPIE Journal Paper | 18 February 2015

Intensity-based method for selection of valid interferometric data in temporal phase shifting interferometry

Jaime Sánchez-Paredes, Gilberto Silva-Ortigoza, Jorge Castro-Ramos

OE, Vol. 54, Issue 02, 024106, (February 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.2.024106

KEYWORDS: Phase shift keying, Modulation, Wavefronts, Interferometry, Fringe analysis, Phase shifts, Phase interferometry, Mirrors, Optical testing, Light emitting diodes

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Proceedings Article | 23 September 2014 Paper

Biometric analysis of the palm vein distribution by means two different techniques of feature extraction

R. Castro-Ortega, C. Toxqui-Quitl, J. Solís-Villarreal, A. Padilla-Vivanco, J. Castro-Ramos

Proceedings Volume 9217, 92171W (2014) https://doi.org/10.1117/12.2061085

KEYWORDS: Veins, Feature extraction, Image processing, Image acquisition, Biometrics, Near infrared, Image enhancement, Databases, Image segmentation, Infrared imaging

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Proceedings Article | 12 March 2014 Paper

Detecting jaundice by using digital image processing

J. Castro-Ramos, C. Toxqui-Quitl, F. Villa Manriquez, E. Orozco-Guillen, A. Padilla-Vivanco, JJ. Sánchez-Escobar

Proceedings Volume 8949, 89491U (2014) https://doi.org/10.1117/12.2041354

KEYWORDS: Diffuse reflectance spectroscopy, RGB color model, Digital image processing, Liver, Skin, Reflectivity, Tissues, Spectroscopy, Liver cancer, Algorithm development

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Proceedings Article | 18 November 2013 Paper

Parameterization using Fourier series expansion of the diffuse reflectance of human skin to vary the concentration of the melanocytes

J. Freddy Narea, Aarón Muñoz, Jorge Castro, Rafael Muñoz, Caroleny Villalba, María Martinez, Kelly Bravo

Proceedings Volume 8785, 8785DF (2013) https://doi.org/10.1117/12.2026247

KEYWORDS: Skin, Diffuse reflectance spectroscopy, Monte Carlo methods, Tissue optics, Physiology, Radiative transfer, Scattering, Absorption, Reflectivity, Biomedical optics

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Proceedings Article | 3 February 2012 Paper

Raman spectroscopy of blood in-vitro

A. Villanueva-Luna, J. Castro-Ramos, S. Vazquez-Montiel, A. Flores-Gil, C. Ortiz-Lima, J. Delgado-Atencio

Proceedings Volume 8229, 82291D (2012) https://doi.org/10.1117/12.908689

KEYWORDS: Blood, Raman spectroscopy, Principal component analysis, Glucose, In vitro testing, Ocean optics, Spectroscopy, Natural surfaces, Visualization, Spectral resolution

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Proceedings Article | 3 February 2012 Paper

Low abundances of synthetics lipids in phantoms

A. Villanueva-Luna, A. Santiago-Alvarado, J. Castro-Ramos, S. Vazquez-Montiel, A. Flores-Gil, J. Aguilar-Soto, J. Delgado-Atencio

Proceedings Volume 8229, 82290S (2012) https://doi.org/10.1117/12.908386

KEYWORDS: Raman spectroscopy, Magnesium, Tissues, Tissue optics, Silicon, Polyurethane, Optical simulations, Epoxies, Liver, Optical properties

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Proceedings Article | 3 November 2011 Paper

Comparative study of OCT and microscopy images: a scaling approach

A. Vázquez-Villa, J. Delgado-Atencio, S. Vázquez-Montiel, F. Gutiérrez-Delgado, S. Marcial-Toledo, J. Castro-Ramos, L. Chávez-Mercado

Proceedings Volume 8011, 801198 (2011) https://doi.org/10.1117/12.903407

KEYWORDS: Optical coherence tomography, Lead, Software development, Microscopes, Epoxies, Optical microscopes, Microscopy, Biological research, Tissues, Image analysis

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Proceedings Article | 26 October 2011 Paper

An electro-opto-mechanical device to make diffractive optical elements

Jorge Castro-Ramos, Gabriel Gordiano-Alvarado, Carlos Ortiz-Lima, M. Antonio De-Jesus-Ortiz, Sergio Vazquez-Montiel, Alberto Jaramillo-Núñez

Proceedings Volume 8011, 801119 (2011) https://doi.org/10.1117/12.902770

KEYWORDS: Computer programming, Diffractive optical elements, Optical amplifiers, Clocks, Control systems, Electromechanical design, Optical components, Microcontrollers, Manufacturing, Photography

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Proceedings Article | 25 October 2011 Paper

Optical design for MEGARA: a multi-object spectrograph for the GTC

Esperanza Carrasco, Ernesto Sánchez-Blanco, María Luisa García Vargas, Armando Gil de Paz, Jesus Gallego, Gonzalo Páez, Jaime Zamorano, Jorge Castro

Proceedings Volume 8011, 80112D (2011) https://doi.org/10.1117/12.903436

KEYWORDS: Spectrographs, Cameras, Optical design, Collimators, Spectral resolution, Sensors, Astronomical imaging, Prisms, Optics manufacturing, Lawrencium

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Proceedings Article | 18 February 2011 Paper

Raman spectra and optical coherent tomography images of skin

A. Villanueva-Luna, J. Castro-Ramos, S. Vazquez-Montiel, A. Flores-Gil, J. A. Delgado-Atencio, A. Vazquez-Villa

Proceedings Volume 7883, 788310 (2011) https://doi.org/10.1117/12.874280

KEYWORDS: Raman spectroscopy, Optical coherence tomography, Glucose, Skin, Tissue optics, Blood, Spectroscopy, Remote sensing, Raman scattering, Molecules

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Proceedings Article | 11 February 2011 Paper

Mapping skin using Raman spectroscopy

A. Villanueva-Luna, J. Castro-Ramos, S. Vazquez-Montiel, A. Flores-Gil, J. Delgado Atencio, C. Ortiz-Lima

Proceedings Volume 7906, 790610 (2011) https://doi.org/10.1117/12.874268

KEYWORDS: Raman spectroscopy, Skin, Tissues, Collagen, Spectroscopy, Brain mapping, Chemical analysis, Tunable filters, Pathology, Spectral resolution

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Proceedings Article | 11 February 2011 Paper

Fabrication and characterization of phantoms made of polydimethylsiloxane (PDMS)

A. Villanueva-Luna, A. Santiago-Alvarado, J. Castro-Ramos, B. Licona-Moran, S. Vazquez-Montiel, A. Flores-Gil, J. Delgado-Atencio

Proceedings Volume 7906, 79060I (2011) https://doi.org/10.1117/12.874285

KEYWORDS: Raman spectroscopy, Tissue optics, Glucose, Manufacturing, Luminescence, Biomedical optics, Optics manufacturing, Tissues, Chemical elements, Optical properties

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Proceedings Article | 3 September 2010 Paper

Scattering in random profiling surfaces

G. Diaz-Gonzalez, J. Munoz-Lopez, J. Castro-Ramos, A. Santiago-Alvarado

Proceedings Volume 7793, 77930N (2010) https://doi.org/10.1117/12.860600

KEYWORDS: Scattering, Mirrors, Light scattering, Electromagnetism, Monochromatic aberrations, Wavefronts, Profiling, Rayleigh scattering, Optical components, Optical instrument design

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Proceedings Article | 3 August 2010 Paper

Wavefront calculation from backscattering phase in optical rough surfaces

G. Diaz-Gonzalez, J. Munoz-Lopez, J. Castro-Ramos, A. Santiago-Alvarado

Proceedings Volume 7790, 779014 (2010) https://doi.org/10.1117/12.860917

KEYWORDS: Scattering, Electromagnetism, Mirrors, Wavefronts, Backscatter, Optical components, Light scattering, Rayleigh scattering, Optical instrument design, Reflector telescopes

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Proceedings Article | 26 February 2010 Paper

Comparison of different kinds of skin using Raman spectroscopy

A. Villanueva-Luna, J. Castro-Ramos, S. Vazquez-Montiel, A. Flores Gil, J. Delgado-Atencio

Proceedings Volume 7572, 75720M (2010) https://doi.org/10.1117/12.842843

KEYWORDS: Raman spectroscopy, Skin, Wavelets, Tissue optics, Ocean optics, Signal processing, Luminescence, Spectroscopy, Natural surfaces, Wavelet transforms

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Proceedings Article | 3 December 2009 Paper

Liquids sensor using Raman spectroscopy

A. Villanueva-Luna, J. Castro-Ramos, S. Vazquez-Montiel, A. Flores-Gil, E. Orozco-Guillen

Proceedings Volume 7499, 74990I (2009) https://doi.org/10.1117/12.849147

KEYWORDS: Raman spectroscopy, Collagen, Liquids, Wavelets, Sensors, Spectroscopy, Light scattering, MATLAB, Raman scattering, Photons

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Proceedings Article | 22 August 2009 Paper

Parametric and scattering characterization of PDMS membranes for optical applications

A. Santiago-Alvarado, S. Vazquez Montiel, J. Munoz-Lopez, J. Castro-Ramos, J. Delgado Atencio

Proceedings Volume 7426, 742615 (2009) https://doi.org/10.1117/12.826550

KEYWORDS: Liquids, Optics manufacturing, Scattering, Liquid lenses, Optical properties, Polymers, Biomedical optics, Optical coherence tomography, Active optics, Raman spectroscopy

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Proceedings Article | 18 September 2007 Paper

Mechanical design and analysis of a variable focal length lens

Jorge González-García, Victor Manuel Cruz-Martínez, Álvaro Jesus Mendoza-Jasso, Agustin Santiago-Alvarado, Sergio Vázquez-Montiel, Juan Antonio Rayas-Alvarez, Jorge Castro-Ramos

Proceedings Volume 6667, 66670L (2007) https://doi.org/10.1117/12.732400

KEYWORDS: Mechanical engineering, Liquids, Adaptive optics, Lens design, Photoelasticity, Optics manufacturing, Optical mounts, Design for manufacturability, Computing systems, Manufacturing

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Proceedings Article | 14 August 2006 Paper

A comparison between 2D phase unwrapping techniques

J. Sánchez-Paredes, J. Castro-Ramos, S. Vázquez-Montiel

Proceedings Volume 6292, 62921K (2006) https://doi.org/10.1117/12.681385

KEYWORDS: Phase shifts, Calibration, Wavefronts, Mirrors, Phase measurement, Phase interferometry, Interferometry, Interferometers, Phase shifting, Phase shift keying

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Proceedings Article | 20 July 2006 Paper

Analytical and exact method for design diffractive lenses free of spherical aberration

Juan Hernández-Cruz, S. Vázquez-Montiel, O. García-Liévanos, J. Castro-Ramos

Proceedings Volume 6342, 63422J (2006) https://doi.org/10.1117/12.692210

KEYWORDS: Monochromatic aberrations, Lenses, Lens design, Diffractive optical elements, Ray tracing, Optimization (mathematics), Optical design, Glasses, Chromatic aberrations, Optical components

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Proceedings Article | 20 July 2006 Paper

Optical design with aspheric surfaces and exact ray tracing: an analytical method

O. García-Lievanos, S. Vazquez-Montiel, J. Hernandez-Cruz, J. Castro-Ramos

Proceedings Volume 6342, 63422H (2006) https://doi.org/10.1117/12.692231

KEYWORDS: Monochromatic aberrations, Aspheric lenses, Optical design, Mirrors, Ray tracing, Spherical lenses, Telescopes, Testing and analysis, Refractive index, Optimization (mathematics)

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Proceedings Article | 24 August 2005 Paper

Thick lenses free from spherical aberration designed by using exact ray tracing

J. Castro-Ramos, Ma. Chavez-Garcia, S. Vazquez-Montiel, A. Cordero-Davila

Proceedings Volume 5874, 58740T (2005) https://doi.org/10.1117/12.618078

KEYWORDS: Monochromatic aberrations, Lens design, Lenses, Optical design, Spherical lenses, Ray tracing, Refraction, Glasses, Image acquisition, Reflection

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Proceedings Article | 20 August 2005 Paper

Testing big roughness surfaces by using shadow moiré

J. Castro-Ramos, S. Vazquez-Montiel, S. Quechol-Lopez, J. Munoz-Lopez

Proceedings Volume 5869, 58691E (2005) https://doi.org/10.1117/12.618067

KEYWORDS: Mirrors, Phase shifting, Light, Wavefronts, Telescopes, Light sources, Reflection, Scattering, Superposition, Fringe analysis

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Proceedings Article | 4 April 2005 Paper

Fresnel lens on new photosensitive material

M. Ortiz-Gutierrez, M. Salgado-Verduzco, A. Olivares-Perez, J. Juarez-Perez, M. Perez-Cortes, J. Ibarra-Torres, J. Castro-Ramos

Proceedings Volume 5724, (2005) https://doi.org/10.1117/12.591264

KEYWORDS: Fresnel lenses, Photomasks, Photosensitive materials, Adhesives, Lithography, Lens design, Photography, Glasses, Fabrication, Liquids

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Proceedings Article | 21 October 2004 Paper

Phase shifting interferometry by using an LCD and bironchi test

Jorge Castro-Ramos, Sergio Vazquez-Montiel, Alfonso Padilla-Vivanco

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591802

KEYWORDS: Ronchi rulings, Wavefronts, Wavefront aberrations, LCDs, Mirrors, Phase interferometry, Interferometry, Phase shifting, Lenses, Interferometers

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Proceedings Article | 21 October 2004 Paper

Infrared electro-optical detector to rescue humans

Paulo Ysi-Zarco, Jorge Castro Ramos, Gabriel Gordiano-Alvarado

Proceedings Volume 5563, (2004) https://doi.org/10.1117/12.558933

KEYWORDS: Infrared radiation, Sensors, Black bodies, Signal processing, Infrared sensors, Infrared detectors, Electro optical sensors, Voltage controlled current source, Electro optics, Optical filters

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Proceedings Article | 2 August 2004 Paper

Automatic phase-shifting Ronchi tester with a square Ronchi ruling

Jorge Castro-Ramos, Jose Sasian

Proceedings Volume 5532, (2004) https://doi.org/10.1117/12.558939

KEYWORDS: Wavefronts, Ronchi rulings, Mirrors, Light emitting diodes, Phase shifting, Phase interferometry, Interferometry, CCD cameras, Phase shifts, Interferometers

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Showing 5 of 29 publications

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