Prof. Ionel-Valentin Vlad Profile

Prof. Ionel-Valentin Vlad

President at Romanian Academy

SPIE Involvement:

Editor | Author

Publications (47)

Proceedings Article | 10 June 2013 Paper

Analysis of soliton waveguides in lithium niobate at 405nm wavelength

S. Popescu, A. Petris, V. Vlad, E. Fazio

Proceedings Volume 8882, 88820K (2013) https://doi.org/10.1117/12.2032566

KEYWORDS: Solitons, Waveguides, Crystals, Lithium niobate, Polarization, Photovoltaics, Refractive index, Laser crystals, Electro optics, Wave propagation

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Proceedings Article | 10 June 2013 Paper

Nonlinear optical properties of Rh610 sensitized DNA-CTMA characterized by Z-Scan

I. Dancus, V. Vlad, A. Petris, I. Rau, F. Kajzar, A. Meghea, A. Tane

Proceedings Volume 8882, 88820D (2013) https://doi.org/10.1117/12.2032352

KEYWORDS: Refractive index, Nonlinear optics, Molecules, Absorption, Molecular interactions, Femtosecond phenomena, Rhodamine, Mode locking, Polymers, Photonics

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Proceedings Article | 10 June 2013 Paper

Nonlinear refractive properties of 1D periodically nanostructured silicon-on-insulator investigated by reflection I-Scan

Tatiana Bazaru Rujoiu, Adrian Petris, Valentin Vlad

Proceedings Volume 8882, 88820C (2013) https://doi.org/10.1117/12.2032351

KEYWORDS: Silicon, Nanostructures, Nonlinear optics, Refractive index, Nanostructuring, Composites, Femtosecond phenomena, Dielectric polarization, Ultrafast phenomena, Reflection

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Proceedings Article | 12 October 2010 Paper

Side-chain polymers bearing azo-moieties for nonlinear optics

F. Adriana Nicolescu, V. Victor Jerca, Ioan Dancus, Adrian Petris, Valentin Vlad, D. Sorin Vasilescu, D. Mircea Vuluga

Proceedings Volume 7838, 78381B (2010) https://doi.org/10.1117/12.869885

KEYWORDS: Polymers, Nonlinear optics, Chromophores, Glasses, Absorption, UV-Vis spectroscopy, Temperature metrology, Refraction, Optical design, Crystals

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Proceedings Article | 17 May 2010 Paper

Optical limiting in CdTe nanocrystals embedded in polystyrene

I. Dancus, V. Vlad, A. Petris, V. Lesnyak, N. Gaponik, A. Eychmüller

Proceedings Volume 7469, 74690A (2010) https://doi.org/10.1117/12.865611

KEYWORDS: Refractive index, Optical limiting, Nanocrystals, Nonlinear optics, Absorption, Laser beam diagnostics, Quantum dots, Optical properties, Polymers, Integrated optics

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Proceedings Article | 17 May 2010 Paper

Fast writing of soliton waveguides in lithium niobate with a low-power blue-violet laser

S. Popescu, A. Petris, V. Vlad, E. Fazio

Proceedings Volume 7469, 74690I (2010) https://doi.org/10.1117/12.867544

KEYWORDS: Crystals, Waveguides, Solitons, Laser crystals, Lithium niobate, Semiconductor lasers, Photonic crystals, Femtosecond phenomena, Beam propagation method, Integrated photonics

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Proceedings Article | 17 May 2010 Paper

Effective nonlinear refractive index of nano-porous silicon and its dependence on porosity and light wavelength

Tatiana Bazaru, Valentin Vlad, Adrian Petris, Mihaela Miu

Proceedings Volume 7469, 74690D (2010) https://doi.org/10.1117/12.866770

KEYWORDS: Silicon, Refractive index, Nonlinear optics, Absorption, Reflectivity, Visible radiation, Thermal effects, Statistical analysis, Semiconductor lasers, Crystals

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Proceedings Article | 1 August 2007 Paper

Electronic and thermal nonlinear refractive indices of SOI and nano-patterned SOI measured by Z-scan method

A. Petris, F. Pettazzi, E. Fazio, C. Peroz, Y. Chen, V. Vlad, M. Bertolotti

Proceedings Volume 6785, 67850P (2007) https://doi.org/10.1117/12.756845

KEYWORDS: Silicon, Refractive index, Reflection, Nonlinear response, Mode locking, Semiconductor lasers, Silicon photonics, Femtosecond phenomena, Optical components, Nonlinear optics

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Proceedings Article | 1 August 2007 Paper

Z-Scan measurement of thermal optical nonlinearities

I. Dancus, A. Petris, Petronela Doia, E. Fazio, V. Vlad

Proceedings Volume 6785, 67851F (2007) https://doi.org/10.1117/12.757946

KEYWORDS: Femtosecond phenomena, Refractive index, Nonlinear optics, Sensors, Thermal effects, Absorption, Continuous wave operation, Optical testing, Glasses

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Proceedings Article | 1 August 2007 Paper

Confocal microscopy for visualization and characterization of porous silicon samples

Petronela Doia, A. Petris, I. Dancus, V. Vlad

Proceedings Volume 6785, 67850T (2007) https://doi.org/10.1117/12.757841

KEYWORDS: Confocal microscopy, Silicon, Microscopes, Particle filters, Sensors, Visualization, Image resolution, Image transmission, Resolution enhancement technologies, Optical microscopy

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Proceedings Article | 20 April 2006 Paper

Photorefractive bright soliton in erbium doped lithium niobate

Federico Pettazzi, Grigore Lehau, Massimo Alonzo, Cinzia Sada, Marco Bazzan, Nicola Argiolas, Paolo Mazzoldi, Mathieu Chauvet, Valentin Vlad, Adrian Petris, Eugenio Fazio

Proceedings Volume 6183, 618319 (2006) https://doi.org/10.1117/12.664082

KEYWORDS: Erbium, Solitons, Photovoltaics, Lithium niobate, Crystals, Spatial solitons, Laser crystals, Photorefraction, Refractive index, Absorption

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Proceedings Article | 14 December 2005 Paper

Soliton waveguides in photorefractive crystals

V. Vlad, E. Fazio, M. Bertolotti, A. Petris

Proceedings Volume 5972, 597201 (2005) https://doi.org/10.1117/12.639166

KEYWORDS: Solitons, Crystals, Waveguides, Laser crystals, Spatial solitons, Beam shaping, Absorption, Photonic crystals, Wave propagation, Laser beam propagation

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Proceedings Article | 21 October 2004 Paper

Polarization evolution of spatial solitons in photorefractive crystals with large optical activity

Valentin Vlad, Adrian Petris, Vasile Babin, Eugenio Fazio, Mario Bertolotti

Proceedings Volume 5581, (2004) https://doi.org/10.1117/12.582967

KEYWORDS: Solitons, Crystals, Optical activity, Absorption, Spatial solitons, Polarization, Wave propagation, Optical spheres, Crystal optics, Nonlinear optics

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Proceedings Article | 21 October 2004 Paper

Light polarization dynamics in self-confined beams and solitons propagating in photorefractive media

Eugenio Fazio, Alessio Bosco, Roberto Rinaldi, A. Mascioletti, Fabrizio Renzi, Mario Bertolotti, Wael Ramadan, Vasile Babin, Adrian Petris, Valentin Vlad

Proceedings Volume 5581, (2004) https://doi.org/10.1117/12.582789

KEYWORDS: Solitons, Polarization, Crystals, Beam propagation method, Optical activity, Diffraction, Numerical simulations, Refractive index, Geometrical optics, Laser crystals

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Proceedings Article | 21 October 2004 Paper

Determining the chemical potential of confined quantum systems of bosonic and fermionic type

Nicholas Ionescu-Pallas, Ovidiu Racoveanu, Valentin Vlad

Proceedings Volume 5581, (2004) https://doi.org/10.1117/12.583042

KEYWORDS: Particles, Gases, Thermodynamics, Bosons, Quantum physics, Fermions, Information operations, Atomic, molecular, and optical physics, Photonics, Inverse optics

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Proceedings Article | 21 October 2004 Paper

Multiple-pass Z-Scan for the characterization of partial transparent nonlinear optical materials

Tatiana Bazaru, Ioan Dancus, Petronela Doia, Adrian Petris, Valentin Vlad

Proceedings Volume 5581, (2004) https://doi.org/10.1117/12.583043

KEYWORDS: Refractive index, Silicon, Semiconducting wafers, Nonlinear optics, Nonlinear optical materials, Interfaces, Nano opto mechanical systems, Four wave mixing, Statistical analysis, Estimation theory

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Proceedings Article | 21 October 2004 Paper

High reflectivity and fidelity SBS phase conjugation mirrors for solid state lasers

Valentin Vlad, Hans Eichler, Vasile Babin, Anca Mocofanescu, Thomas Riesbeck, E. Riesse

Proceedings Volume 5581, (2004) https://doi.org/10.1117/12.582935

KEYWORDS: Reflectivity, Phase conjugation, Solid state lasers, Mirrors, Nd:YAG lasers, Oscillators, Laser systems engineering, 3D modeling, Multimode fibers, Optical fibers

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Proceedings Article | 18 August 2004 Paper

Generation of bright solitons in LiNbO3 and their application as programmable monomode waveguides

Eugenio Fazio, Wael Ramadan, Matthieu Chauvet, Fabrizio Renzi, Roberto Rinaldi, Adrian Petris, Valentin Vlad, Mario Bertolotti

Proceedings Volume 5451, (2004) https://doi.org/10.1117/12.545825

KEYWORDS: Solitons, Waveguides, Lithium niobate, Crystals, Photovoltaics, Refractive index, Laser crystals, Channel waveguides, Beam propagation method, Diffraction

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Proceedings Article | 18 August 2004 Paper

Self-waveguiding of light pulses in photorefractive BSO crystals: intensity and polarization dynamics

Roberto Rinaldi, Eugenio Fazio, Adrian Petris, Valentin Vlad, Mario Bertolotti

Proceedings Volume 5451, (2004) https://doi.org/10.1117/12.545859

KEYWORDS: Polarization, Solitons, Crystals, Refractive index, Diffraction, Optical activity, Laser crystals, Numerical simulations, Geometrical optics, Transient nonlinear optics

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Proceedings Article | 19 November 2003 Paper

Adaptive optical interconnection using double phase conjugation in Rh:BaTiO3 photorefractive crystals

Adrian Petris, Michael Damzen, Valentin Vlad

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.530052

KEYWORDS: Phase conjugation, Crystals, Optical interconnects, Reflectivity, Modulation, Physics, Mirrors, Laser crystals, Diffraction, Plasma physics

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Proceedings Article | 19 November 2003 Paper

Spatial solitons in photorefractive crystals with large optical activity and absorption

Eugenio Fazio, V. Babin, Adrian Petris, A. Belardini, Mario Bertolotti, Valentin Vlad

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.530071

KEYWORDS: Solitons, Crystals, Spatial solitons, Optical activity, Absorption, Nonlinear crystals, Crystal optics, Polarization, Atomic, molecular, and optical physics, Numerical simulations

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Proceedings Article | 10 November 2003 Paper

Reflectivity and fidelity of phase conjugation by stimulated Brillouin scattering of focused beams

Anca Mocofanescu, V. Babin, T. Riesbeck, V. Vlad

Proceedings Volume 5120, (2003) https://doi.org/10.1117/12.515504

KEYWORDS: Reflectivity, Phase conjugation, Scattering, Oscillators, Laser scattering, Mirrors, Nd:YAG lasers, Electroluminescence, Amplifiers, Carbon

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Proceedings Article | 19 June 2003 Paper

Optical multifunction logic gate based on BSO photorefractive crystal

Fabio Garzia, Eugenio Fazio, Mario Bertolotti, Valentin Vlad

Proceedings Volume 4987, (2003) https://doi.org/10.1117/12.478328

KEYWORDS: Crystals, Polarization, Laser crystals, Radio propagation, Information operations, Logic devices, Electro optics, Logic, Wave propagation, Beam propagation method

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