Dr. Celia A. Sánchez-Pérez Profile

Dr. Celia A. Sánchez-Pérez

at UNAM

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 20 August 2020 Poster + Paper

Cerebral hypoxia detection by diffuse reflectance spectroscopy through a transparent cranial implant: feasibility evaluation using Monte Carlo method

Fredy Miranda-Casasola, Nami Davoodzadeh, Celia Sánchez-Pérez, Guillermo Aguilar, Enoch Gutierrez-Herrera

Proceedings Volume 11484, 114840N (2020) https://doi.org/10.1117/12.2569067

KEYWORDS: Oxygen, Tissue optics, Brain, Blood vessels, Absorption, Diffuse reflectance spectroscopy, Monte Carlo methods, Hypoxia

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Proceedings Article | 15 February 2017 Paper

Preservation media analysis for ex vivo measurements of endogenous UV fluorescence of liver fibrosis in bulk samples

Enoch Gutierrez-Herrera, Adolfo Perez-Garcia, Nathalie Aleman-García, Antonio Ortega-Martinez, Celia Sánchez-Pérez, Walfre Franco, Joselín Hernández-Ruiz

Proceedings Volume 10062, 100621C (2017) https://doi.org/10.1117/12.2252795

KEYWORDS: Tissues, Luminescence, Liver, Ultraviolet radiation, Tissue optics, Molecules, Biopsy, Proteins, Fluorescence spectroscopy, Collagen

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Proceedings Article | 28 August 2015 Paper

Photothermal deflection of laser beam as means to characterize thermal properties of biological tissue: numerical study

Enoch Gutierrez-Herrera, Celia Sánchez-Pérez, Carlos García-Cadena, Joselín Hernández-Ruiz

Proceedings Volume 9609, 960913 (2015) https://doi.org/10.1117/12.2191915

KEYWORDS: Tissues, Liver, Sensors, Ray tracing, Heat flux, Tissue optics, Thermal optics, Finite difference methods, Interfaces, Diagnostics

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Proceedings Article | 27 August 2014 Paper

The refractive index of non-absorbing nanofluids and applications

Augusto García-Valenzuela, Humberto Contreras-Tello, C. Sánchez-Pérez, R. Márquez-Islas, R. Barrera

Proceedings Volume 9173, 91730C (2014) https://doi.org/10.1117/12.2064153

KEYWORDS: Particles, Refractive index, Liquids, Nanoparticles, Light scattering, Scattering, Interfaces, Water, Polymethylmethacrylate, Electromagnetism

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Proceedings Article | 18 November 2013 Paper

Optical characterization of thermal properties of biological tissue

A. Gutierrez-Arroyo, C. Sánchez Pérez, N. Alemán-García, C. Piña-Barba

Proceedings Volume 8785, 8785CX (2013) https://doi.org/10.1117/12.2025877

KEYWORDS: Tissues, Tissue optics, Heat flux, Sensors, Wave propagation, Thermography, Integrated optics, Biomedical optics, Optical fibers, Data modeling

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Proceedings Article | 30 September 2011 Paper

Manufacturing, testing, and metrology of axi-symmetric circular phase masks for stellar coronagraphy

Mamadou N'Diaye, Kjetil Dohlen, Stéphane Tisserand, Sophie Gautier, Kacem El Hadi, Gabriel Moreaux, Rémi Soummer, Salvador Cuevas, Celia Sánchez-Pérez

Proceedings Volume 8169, 81690G (2011) https://doi.org/10.1117/12.897010

KEYWORDS: Coronagraphy, Prototyping, Manufacturing, Stars, Metrology, Profilometers, Image enhancement, Design for manufacturability, Etching, Telescopes

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Proceedings Article | 22 July 2010 Paper

Experimental advances in phase mask coronagraphy

Mamadou N'Diaye, Kjetil Dohlen, Salvador Cuevas, Rémi Soummer, Celia Sánchez

Proceedings Volume 7739, 77391Z (2010) https://doi.org/10.1117/12.857239

KEYWORDS: Coronagraphy, Apodization, Glasses, Signal attenuation, Thin films, Colorimetry, Manufacturing, Silver, Telescopes, Nanolithography

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Proceedings Article | 3 December 2009 Paper

Fast measurement of the refractive-index dispersion of dilute liquid solutions of absorbing molecules

Elizareth Hernández-Sánchez, Humberto Contreras-Tello, Celia Sánchez-Pérez, Augusto García-Valenzuela

Proceedings Volume 7499, 74990E (2009) https://doi.org/10.1117/12.851114

KEYWORDS: Reflectivity, Refractive index, Molecules, Water, Glasses, Polarization, Liquids, Prisms, Absorption, Rhodamine

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Proceedings Article | 16 May 2007 Paper

Dispersion and refractive index measurements of diluted solutions with a double prism refractometer

Víctor Leyva-García, Celia Sánchez-Pérez, Augusto García-Valenzuela

Proceedings Volume 6422, 64221F (2007) https://doi.org/10.1117/12.742353

KEYWORDS: Refractive index, Prisms, Water, Calibration, Spectrophotometry, Refraction, Ionization, Beam analyzers, Light sources, Oxidation

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Proceedings Article | 15 May 2007 Paper

Optical-integrated NH3 sensor design based on WO3 thin films: influence of gas adsorption and chromic effects

Hugo Lazcano Hernández, Celia Sánchez Pérez, Augusto García Valenzuela, Alejandro Esparza García, Marco Camacho López

Proceedings Volume 6422, 642213 (2007) https://doi.org/10.1117/12.742303

KEYWORDS: Refractive index, Sensors, Transmittance, Adsorption, Waveguides, Glasses, Temperature metrology, Atmospheric propagation, Thin films, Optical design

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SPIE Journal Paper | 1 April 2007 Open Access

Photometric principle for passive optical range sensors

Augusto García Valenzuela, H. Valenzo-Aoki, Celia Sanchez-Perez, V. Argueta-Diaz

OE, Vol. 46, Issue 04, 040505, (April 2007) https://doi.org/10.1117/12.10.1117/1.2721533

KEYWORDS: Sensors, Iris recognition, Signal detection, Photodetectors, Light emitting diodes, Optical components, Active optics, Active sensors, Distance measurement, Ranging

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SPIE Journal Paper | 1 June 2006 Open Access

Refractive index dispersion measurement of absorbing layers from transmittance spectra

Celia Sanchez-Perez, Augusto García-Valenzuela

OE, Vol. 45, Issue 06, 060504, (June 2006) https://doi.org/10.1117/12.10.1117/1.2208560

KEYWORDS: Refractive index, Transmittance, Water, Error analysis, Solids, Optical testing, Absorbance, Ocean optics, Thin films, Reflectivity

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Proceedings Article | 10 February 2006 Paper

Refractive index determination of highly absorbing materials by oblique transmittance measurements

Celia Sánchez Pérez, Augusto García Valenzuela, Luis Castañeda Aviña, G. Eduardo Sandoval Romero

Proceedings Volume 6046, 60461V (2006) https://doi.org/10.1117/12.674601

KEYWORDS: Refractive index, Transmittance, Water, Absorbance, Spectroscopy, Liquids, Interfaces, Error analysis, Absorption, Thin films

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Proceedings Article | 31 March 2005 Paper

Planar glass integrated optical structure based on prism decoupling for sensing applications

Celia Sanchez-Perez, Elise Ghibaudo, Jean-Emmanuel Broquin, Augusto Garcia-Valenzuela, A. Esparza-Garcia, M. Camacho-Lopez

Proceedings Volume 5728, (2005) https://doi.org/10.1117/12.590590

KEYWORDS: Prisms, Waveguides, Refractive index, Thin films, Planar waveguides, Glasses, Integrated optics, Thin film deposition, Thin film devices, Raman spectroscopy

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Proceedings Article | 21 October 2004 Paper

Laser-induced phase changes of metallic Ti and W thin films

Rodger Evans, Santiago Camacho-Lopez, Raul Rangel-Rojo, M. Camacho-Lopez, Celia Sanchez-Perez, A. Esparza-Garcia

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591709

KEYWORDS: Titanium, Crystals, Thin films, Tungsten, Laser crystals, Metals, Oxygen, Scanning electron microscopy, Pulsed laser operation, Thermal effects

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Proceedings Article | 21 October 2004 Paper

Optical properties of TiO2-x thin films studied by spectroscopic ellipsometry: substrate temperature effect

M. Camacho-Lopez, Celia Sanchez-Perez, A. Esparza-Garcia, E. Ghibaudo, S. Rodil, S. Muhl, L. Escobar-Alarcon

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.590793

KEYWORDS: Thin films, Titanium, Thin film deposition, Oxides, Refractive index, Silicon films, Silicon, Raman spectroscopy, Optical properties, Oxygen

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Proceedings Article | 7 April 2004 Paper

Heat flux sensor based on photothermal beam deflection for thermal characterization of liquids

G. Sandoval-Romero, J. Hernandez-Cedillo, E. Martinez-Gomez, Augusto Garcia-Valenzuela, C. Sanchez-Perez, Juan Hernandez-Cordero

Proceedings Volume 5478, (2004) https://doi.org/10.1117/12.560994

KEYWORDS: Sensors, Liquids, Heat flux, Optoelectronic devices, Thermal optics, Remote sensing, Fiber optics sensors, Head, Fiber optics tests, Fiber optics

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Proceedings Article | 7 April 2004 Paper

Superluminescent fiber laser sources for fiber optics sensors

G. Sandoval-Romero, Juan Hernandez-Cordero, L. Sosa-Martinez, P. Ramos-Alvarez, Augusto Garcia-Valenzuela, C. Sanchez-Perez

Proceedings Volume 5478, (2004) https://doi.org/10.1117/12.560997

KEYWORDS: Fiber optics sensors, Fiber lasers, Optical fibers, Multiplexing, Gyroscopes, Sensors, Light sources

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Proceedings Article | 26 November 1999 Paper

Integrated optical polarizers of high extinction ratio on glass substrate with a polymer overlay

Celia Sanchez Perez, Pierre Benech, Alain Morand, Ted Tedjini, Dominique Bosc, Alain Rousseau

Proceedings Volume 3847, (1999) https://doi.org/10.1117/12.371237

KEYWORDS: Electrodes, Waveguides, Polarizers, Polymers, Glasses, Polarization, Electro optic polymers, Refractive index, Wave propagation, Aluminum

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Proceedings Article | 26 March 1999 Paper

Low-cost integrated optical waveguide polarizer with an hybrid structure of birefringent polymer and ion-exchanged glass waveguide

Celia Sanchez Perez, Alain Morand, Pierre Benech, Tedjini Smail, Dominique Bosc, Alain Rousseau

Proceedings Volume 3620, (1999) https://doi.org/10.1117/12.343721

KEYWORDS: Waveguides, Polymers, Polarizers, Polarization, Glasses, Ion exchange, Refractive index, Polymer multimode waveguides, Ions, Birefringence

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