Prof. Alfonso Lastras-Martinez Profile

Prof. Alfonso Lastras-Martinez

at Univ Autonoma de San Luis Potosi

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Author

Publications (6)

Proceedings Article | 16 May 2007 Paper

Reflectance difference spectrometer based on the use of a CCD camera

L. F. Lastras-Martínez, R. Castro-García, R. Balderas-Navarro, A. Lastras-Martínez

Proceedings Volume 6422, 64221C (2007) https://doi.org/10.1117/12.742346

KEYWORDS: Charge-coupled devices, Spectroscopy, Reflectivity, Semiconductors, Sensors, Gallium arsenide, Reflectance spectroscopy, Photomultipliers, Signal processing, Surface finishing

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Proceedings Article | 16 May 2007 Paper

Reflectance-difference spectroscopy as an optical probe for the in situ determination of doping levels in GaAs

A. Lastras-Martínez, I. Lara-Velázquez, R. Balderas-Navarro, J. Ortega-Gallegos, L. Lastras-Martínez

Proceedings Volume 6422, 64221H (2007) https://doi.org/10.1117/12.742363

KEYWORDS: Doping, Gallium arsenide, Reflectance spectroscopy, Spectroscopy, Reflectivity, Temperature metrology, Electro optics, Crystals, Dielectrics, Optical spectroscopy

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Proceedings Article | 10 February 2006 Paper

Multichannel holograms with some applications in image processing

M. Araiza E., S. Guel S., A. Lastras, J. de la Rosa V., G. Miramontes

Proceedings Volume 6046, 60461I (2006) https://doi.org/10.1117/12.674552

KEYWORDS: Holograms, Computer generated holography, Image processing, Multiplexing, 3D image reconstruction, Holography applications, Fourier transforms, Image restoration, Binary data, Transmittance

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Proceedings Article | 24 September 2004 Paper

Continuous-wave operation up to 350K of optically-pumped antimony-based midinfrared VCSELs

Laurent Cerutti, Arnaud Garnache, Aimeric Ouvrard, Frederic Genty, Edgar Cerda, Alfonso Lastras-Martinez, Daniele Romanini

Proceedings Volume 5582, (2004) https://doi.org/10.1117/12.583392

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Reflectivity, Gallium antimonide, Luminescence, Continuous wave operation, Semiconductor lasers, Quantum wells, Semiconductors, Mid-IR

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Proceedings Article | 1 May 1996 Paper

Reflectance-difference spectroscopy: a technique for characterization of dislocations in semiconductors

Luis Lastras-Martinez, Alfonso Lastras-Martinez

Proceedings Volume 2693, (1996) https://doi.org/10.1117/12.239015

KEYWORDS: Semiconductors, Gallium arsenide, Reflectance spectroscopy, Reflectivity, Crystals, Spectroscopy, Anisotropy, Transition metals, Solids, Interfaces

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Proceedings Article | 1 August 1990 Paper

Optical anisotropies in electromodulation

Sofia Acosta-Ortiz, Alfonso Lastras-Martinez

Proceedings Volume 1286, (1990) https://doi.org/10.1117/12.20834

KEYWORDS: Gallium arsenide, Anisotropy, Electro optics, Reflectivity, Semiconductors, Crystals, Doping, Modulation, Spectroscopy, Silicon

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Showing 5 of 6 publications

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