Prof. Luís Miguel Bernardo Profile

Prof. Luís Miguel Bernardo

Assistant Professor

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 25 May 2016 Paper

Silent images in dialogue

Isabel Azevedo, Elizabeth Sandford-Richardson, Martin Richardson, Luis Miguel Bernardo, Helder Crespo

Proceedings Volume 9771, 977108 (2016) https://doi.org/10.1117/12.2212391

KEYWORDS: Digital holography, Holography, Holograms, Cameras, Printing, Imaging systems, Software, Visualization, Computing systems, Reflection

Read Abstract +

Proceedings Article | 10 March 2015 Paper

Seeing yourself seeing

Isabel Azevedo, Martin Richardson, Elizabeth Sandford-Richardson, Luis Miguel Bernardo, Helder Crespo

Proceedings Volume 9386, 93860D (2015) https://doi.org/10.1117/12.2079531

KEYWORDS: Digital holography, Holograms, Holography, Digital imaging, Cameras, Physics, Astronomy, Sensors, Telecommunications, Crystals

Read Abstract +

Proceedings Article | 25 February 2014 Paper

The place for performance in the digital holographic space

Isabel Azevedo, Martin Richardson, Elizabeth Sandford-Richardson, Luis Miguel Bernardo, Helder Crespo

Proceedings Volume 9006, 90060N (2014) https://doi.org/10.1117/12.2036693

KEYWORDS: Digital holography, Holography, Holograms, Cameras, Digital imaging, Photography, Image processing, Reflection, Optical design, Visualization

Read Abstract +

Proceedings Article | 18 November 2013 Paper

Photon kinetic description of nonlinear cross-phase modulation

J. Mendonça, H. Crespo, A. Amorim, L. Bernardo

Proceedings Volume 8785, 878574 (2013) https://doi.org/10.1117/12.2026316

KEYWORDS: Modulation, Nonlinear optics, Dispersion, Phase shift keying, Ultrafast phenomena, Photonic crystal fibers, Nonlinear crystals, Geometrical optics, Phase modulation, Refractive index

Read Abstract +

Proceedings Article | 1 March 2013 Paper

Time cognition: inside and outside the holographic space

Isabel Azevedo, Martin Richardson, Luís Miguel Bernardo

Proceedings Volume 8644, 86440S (2013) https://doi.org/10.1117/12.2005182

KEYWORDS: Holography, Holograms, Digital holography, Cameras, Image processing, Cognition, Optical design, Sensors, Digital imaging, Imaging systems

Read Abstract +

Proceedings Article | 10 February 2012 Paper

Across light: through colour

Isabel Azevedo, Martin Richardson, Luis Miguel Bernardo

Proceedings Volume 8281, 82810B (2012) https://doi.org/10.1117/12.908961

KEYWORDS: Holography, Digital holography, Holograms, Image processing, Cinematography, Cameras, High dynamic range imaging

Read Abstract +

Proceedings Article | 26 July 2011 Paper

Detection of colon cancer by terahertz techniques

Faustino Wahaia, Gintaras Valusis, Luis M. Bernardo, Abílio Almeida, J. Agostinho Moreira, Patricia Lopes, Jan Macutkevic, Irmantas Kasalynas, Dalius Seliuta, Ramunas Adomavicius, Rui Henrique, Machado Lopes

Proceedings Volume 8001, 800130 (2011) https://doi.org/10.1117/12.892132

KEYWORDS: Terahertz radiation, Cancer, Absorption, Tissues, Refractive index, Colorectal cancer, Imaging spectroscopy, Colon, Water, Spectroscopy

Read Abstract +

Proceedings Article | 7 February 2011 Paper

3D holographic portraits: presence and absence

Rosa Oliveria, Luís Miguel Bernardo

Proceedings Volume 7957, 79570E (2011) https://doi.org/10.1117/12.876395

KEYWORDS: Holograms, Holography, 3D image reconstruction, 3D image processing, Reflection, Image registration, Optical design, Physics, Nanotechnology, Ruby lasers

Read Abstract +

Proceedings Article | 18 May 2010 Paper

Detection of colon and rectum cancers by terahertz techniques

Faustino Wahaia, Gintaras Valusis, Luis Bernardo, Albino Oliveira, Jan Macutkevic, Irmantas Kasalynas, Dalius Seliuta

Proceedings Volume 7715, 77152U (2010) https://doi.org/10.1117/12.847849

KEYWORDS: Tissues, Terahertz radiation, Cancer, Absorption, Imaging spectroscopy, Colon, Rectum, Tumors, Colorectal cancer, Refraction

Read Abstract +

Proceedings Article | 25 April 2008 Paper

Electro-optic time lens model for femtosecond pulses

Francisco Marinho, Luís Bernardo

Proceedings Volume 6994, 699403 (2008) https://doi.org/10.1117/12.780609

KEYWORDS: Electro optical modeling, Microwave radiation, Electro optics, Crystals, Modulation, Dispersion, Refractive index, Picosecond phenomena, Phase velocity, Femtosecond phenomena

Read Abstract +

Proceedings Article | 25 April 2006 Paper

Study of non-solitonic blue-green radiation generated in mm-long photonic crystal fibers

Alexandra Amorim, Helder Crespo, Miguel Miranda, João Silva, Luis Bernardo

Proceedings Volume 6187, 618717 (2006) https://doi.org/10.1117/12.662814

KEYWORDS: Dispersion, Photonic crystal fibers, Solitons, Infrared radiation, Picosecond phenomena, Absorption, Oscillators, Femtosecond phenomena, Light wave propagation, Numerical simulations

Read Abstract +

Proceedings Article | 17 April 2006 Paper

Dispersion-managed soliton operation of Ti:sapphire laser oscillators

Marco Tognetti, Miguel Miranda, Helder Crespo, Luís Bernardo

Proceedings Volume 6190, 61900W (2006) https://doi.org/10.1117/12.662858

KEYWORDS: Mode locking, Crystals, Oscillators, Mirrors, Prisms, Scanning probe microscopy, Solitons, Sapphire lasers, Pulsed laser operation, Silver

Read Abstract +

Proceedings Article | 17 April 2006 Paper

Limits in high-energy laser pulse compression using gas-filled fibres

João Silva, Helder Crespo, Miguel Miranda, Luís Bernardo

Proceedings Volume 6190, 619010 (2006) https://doi.org/10.1117/12.662884

KEYWORDS: Chromium, Ionization, Pulsed laser operation, Argon, Atmospheric propagation, Wave propagation, Solids, Beam propagation method, Waveguides, Dispersion

Read Abstract +

Proceedings Article | 1 September 2004 Paper

Nonlinear control of low-energy ultrashort laser pulses by cross-phase modulation in a photonic crystal fiber

Luis Bernardo, Helder Crespo, Alexandra Amorim, J. Mendonca

Proceedings Volume 5456, (2004) https://doi.org/10.1117/12.548996

KEYWORDS: Modulation, Photonic crystal fibers, Dispersion, Ultrafast phenomena, Oscillators, Nonlinear control, Wave propagation, Nonlinear optics, Mirrors, Fiber lasers

Read Abstract +

Proceedings Article | 29 June 2004 Paper

Holographic portraits: from reality to artistic creation

Rosa Oliveira, Luis Bernardo, Helder Crespo

Proceedings Volume 5290, (2004) https://doi.org/10.1117/12.526875

KEYWORDS: Holograms, Holography, Reflection, Ruby lasers, Glasses, Spatial filters, Silver, Mirrors, Image quality, Diffraction

Read Abstract +

Proceedings Article | 3 October 2000 Paper

Multicolor holography: a comparative study

Rosa Oliveira, Luis Bernardo, Joao Pinto

Proceedings Volume 4149, (2000) https://doi.org/10.1117/12.402467

KEYWORDS: Holograms, Diffraction, Holography, Silver, Image quality, Glasses, Sodium, 3D image reconstruction, Potassium, Energy efficiency

Read Abstract +

Proceedings Article | 3 October 2000 Paper

Holography in Portugal: recent developments

Rosa Oliveira, Luis Bernardo, Joao Pinto, Isabel Azevedo, Pedro Pombo

Proceedings Volume 4149, (2000) https://doi.org/10.1117/12.402456

KEYWORDS: Holography, Holographic interferometry, Holograms, Scientific research, Stereo holograms, Visualization, Optical signal processing, Medicine, Mechanical engineering, Volume holography

Read Abstract +

SPIE Journal Paper | 1 June 2000

From Fresnel patterns to fractional Fourier transform through geometrical optics

David Mas, Carlos Ferreira, Javier Garcia, Luis Bernardo

OE, Vol. 39, Issue 06, (June 2000) https://doi.org/10.1117/12.10.1117/1.602513

KEYWORDS: Fractional fourier transform, Geometrical optics, Imaging systems, Near field diffraction, Diffraction, Fourier transforms, Quantum optics, Signal processing, Quantum mechanics, GRIN lenses

Proceedings Article | 10 March 1998 Paper

Quasi-subwavelength one-dimensional 3x1 array generator for 0.6328 um

Joao Miranda dos Santos, Luis Bernardo

Proceedings Volume 3348, (1998) https://doi.org/10.1117/12.302501

KEYWORDS: Diffraction gratings, Diffraction, Binary data, Glasses, Polarization, Error analysis, Light wave propagation, Diffractive optical elements, Tolerancing, Control systems

Read Abstract +

Proceedings Article | 1 February 1998 Paper

Holography in Portugal

Rosa Oliveira, Isabel Azevedo, Luis Bernardo, Joao Pinto

Proceedings Volume 3358, (1998) https://doi.org/10.1117/12.301483

KEYWORDS: Holography, Scientific research

Read Abstract +

Proceedings Article | 1 February 1998 Paper

Use of color in creative holography

Rosa Oliveira, Luis Bernardo, Joao Pinto, Joaquim Machado

Proceedings Volume 3358, (1998) https://doi.org/10.1117/12.301476

KEYWORDS: Holograms, Holography, Glasses, 3D image processing, Cements, Helium neon lasers, Photography, Laser development, Mirrors, Diffractive optical elements

Read Abstract +

SPIE Journal Paper | 1 March 1996

ABCD matrix formalism of fractional Fourier optics

Luis Bernardo

OE, Vol. 35, Issue 03, (March 1996) https://doi.org/10.1117/12.10.1117/1.600641

KEYWORDS: Fourier optics, Transparency, Matrices, Fourier transforms, Lenses, Transmittance, Composites, Optical engineering, Optical components, Spherical lenses

Proceedings Article | 21 January 1994 Paper

Coherent filtering effects due to the movement of the object or the imaging lens

Luis Bernardo, James Pinto, Oliverio Soares

Proceedings Volume 2051, (1994) https://doi.org/10.1117/12.166038

KEYWORDS: Spatial frequencies, Holography, Optical filters, Image filtering, Fourier transforms, Holograms, Imaging systems, Image acquisition, Image resolution, Optical signal processing

Read Abstract +

Proceedings Article | 1 March 1992 Paper

Holography in biosciences

Oliverio Soares, Silverio Almeida, Luis Bernardo

Proceedings Volume 1524, (1992) https://doi.org/10.1117/12.57733

Proceedings Article | 1 January 1991 Paper

Holotag: a novel holographic label

Oliverio Soares, Luis Bernardo, Maria Pinto, F. Morais

Proceedings Volume 1332, (1991) https://doi.org/10.1117/12.51056

KEYWORDS: Image processing, Optical testing, Optical inspection, Holography, Holograms, 3D image reconstruction, Image compression, Binary data, Distortion, Image quality

Read Abstract +