Dr. Florin Garoi Profile

Dr. Florin Garoi

Research Scientist at INFLPR

SPIE Involvement:

Author

Publications (24)

Proceedings Article | 14 December 2016 Paper

Assessment of illumination conditions in a single-pixel imaging configuration

Florin Garoi, Cristian Udrea, Cristian Damian, Petre Logofătu, Daniela Colţuc

Proceedings Volume 10010, 1001011 (2016) https://doi.org/10.1117/12.2243295

KEYWORDS: Reconstruction algorithms, Signal to noise ratio, Multiplexing, Image quality, Photodiodes, Sensors, Modulation, Micromirrors, Signal to noise ratio, Image processing, Digital micromirror devices

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Proceedings Article | 20 February 2015 Paper

Implementation of Hadamard spectroscopy using MOEMS as a coded aperture

T. Vasile, V. Damian, D. Coltuc, F. Garoi, C. Udrea

Proceedings Volume 9258, 92581H (2015) https://doi.org/10.1117/12.2072259

KEYWORDS: Spectroscopy, Digital micromirror devices, Spectrometers, Signal to noise ratio, Mirrors, Coded apertures, Micromirrors, Computer programming, Microopto electromechanical systems, Photodiodes

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Proceedings Article | 20 February 2015 Paper

Physical Fourier encoding and compacting of optical data

Petre Logofatu, Florin Garoi, Victor Damian, Cristian Udrea

Proceedings Volume 9258, 925810 (2015) https://doi.org/10.1117/12.2071912

KEYWORDS: Fourier transforms, Computer programming, Charge-coupled devices, CCD image sensors, Sensors, Transparency, Polarizers, Diffractive optical elements, Fourier optics, Lenses

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Proceedings Article | 1 November 2012 Paper

Phase-shifting interferometry with a reflective diffraction grating for adaptive optics

F. Garoi, Petre Logofatu, D. Apostol, C. Udrea

Proceedings Volume 8411, 84110R (2012) https://doi.org/10.1117/12.966844

KEYWORDS: Diffraction gratings, Wavefronts, Wavefront sensors, Phase interferometry, Deformable mirrors, Adaptive optics, Sensors, Reflectivity, Phase shifts, Interferometry

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SPIE Journal Paper | 1 October 2011

High diffraction order grating interferometer for pitch measurement

Dan Apostol, Cristian Udrea, Florin Garoi, Tiberius Vasile, Petre Catalin Logofatu

OE, Vol. 50, Issue 10, 105601, (October 2011) https://doi.org/10.1117/12.10.1117/1.3633332

KEYWORDS: Diffraction gratings, Interferometers, Diffraction, Interferometry, Geometrical optics, Sensors, Optical engineering, Error analysis, Physics, Image resolution

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Proceedings Article | 8 December 2010 Paper

Laser cleaning of paintings: from preliminary investigations to a laser cleaning station

I. Apostol, V. Damian, F. Garoi, I. Iordache, M. Bojan, D. Apostol, P. Morais, D. Postolache, I. Darida

Proceedings Volume 7821, 78212E (2010) https://doi.org/10.1117/12.882162

KEYWORDS: Control systems, Laser ablation, Pulsed laser operation, Laser development, Laser safety, Laser systems engineering, Ultraviolet radiation, Imaging systems, Nd:YAG lasers, Prototyping

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Proceedings Article | 8 December 2010 Paper

Lateral shearing interferometry with a deformable mirror for wavefront analysis

F. Garoi, D. Apostol, P. Schiopu

Proceedings Volume 7821, 782122 (2010) https://doi.org/10.1117/12.881723

KEYWORDS: Wavefronts, Interferometers, Interferometry, Deformable mirrors, Sensors, Wavefront analysis, Shearing interferometers, Optical testing, Collimation, Laser interferometry

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Proceedings Article | 17 May 2010 Paper

Effects of layer-by-layer deposition on the structural and optical characteristics of thin films

Petronela Prepelita, R. Medianu, F. Garoi, A. Moldovan, A. Vlaicu

Proceedings Volume 7469, 74690T (2010) https://doi.org/10.1117/12.859695

KEYWORDS: Solar cells, Thin films, Glasses, Zinc, Thin film solar cells, Sputter deposition, Atomic force microscopy, Crystals, Reflection, Absorption

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Proceedings Article | 7 January 2009 Paper

Nano-metrology of macro-systems

F. Garoi, D. Apostol, P. Schiopu, P. Logofatu, V. Damian

Proceedings Volume 7297, 72971G (2009) https://doi.org/10.1117/12.823663

KEYWORDS: Interferometers, Beam splitters, Electronics, Polarization, Photodetectors, Homodyne detection, Signal analyzers, Michelson interferometers, Reflectors, Retroreflectors

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Proceedings Article | 5 June 2008 Paper

CALAS: Carpathian laser strainmeter: a project and preliminary results

F. Garoi, D. Apostol, V. Damian, P. Logofătu, B. Ioniţă, J. Lazar, G. Molesini, T. Papadopoulos, C. Ionescu, Andreea Ţugui

Proceedings Volume 7022, 702218 (2008) https://doi.org/10.1117/12.804106

KEYWORDS: Interferometers, Laser optics, Laser stabilization, Laser interferometry, Interferometry, Beam splitters, Physics, Geophysics, Mechanics, Earthquakes

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Proceedings Article | 29 April 2008 Paper

Laser removal of thin layers for surface cleaning

Ileana Apostol, D. Apostol, V. Damian, Iuliana Iordache, F. Garoi, E. Capello

Proceedings Volume 7007, 70070I (2008) https://doi.org/10.1117/12.801968

KEYWORDS: Thin films, Photoresist materials, Pulsed laser operation, Silicon, Semiconducting wafers, Laser ablation, Silicon films, Semiconductor lasers, Laser applications, Polymer thin films

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Proceedings Article | 1 August 2007 Paper

Fourier transform digital holography

Dan Apostol, Adrian Sima, Petre Logofătu, Florin Garoi, Victor Damian, Victor Nascov, Iuliana Iordache

Proceedings Volume 6785, 678522 (2007) https://doi.org/10.1117/12.756836

KEYWORDS: Digital holography, Holograms, Fourier transforms, 3D image reconstruction, Holography, Analog electronics, Image analysis, Digital cameras, Digital recording, Transparency

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Proceedings Article | 1 August 2007 Paper

Static Fourier transform lambdameter

Dan Apostol, Adrian Sima, Petre Logofătu, Florin Garoi, Victor Damian, Victor Nascov, Iuliana Iordache

Proceedings Volume 6785, 678521 (2007) https://doi.org/10.1117/12.756815

KEYWORDS: Spatial frequencies, Fourier transforms, Interferometers, Spectroscopy, Semiconductor lasers, Fabry–Perot interferometers, Helium neon lasers, Charge-coupled devices, Sensors, Zoom lenses

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Proceedings Article | 1 August 2007 Paper

Magnetic liquid surface behaviour to external stimulus

V. Damian, P. Logofatu, D. Apostol, L. Vekas, Doina Bica, A. Damian, F. Garoi, Iuliana Iordache, A. Sima, Mihaela Bojan

Proceedings Volume 6785, 678523 (2007) https://doi.org/10.1117/12.756817

KEYWORDS: Magnetism, Liquids, Actuators, Signal detection, Interferometers, Semiconductor lasers, Fabry–Perot interferometers, Digital cameras, Diffractive optical elements, Fizeau interferometers

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Proceedings Article | 8 May 2007 Paper

Refractive index measurement using comparative interferometry

Mihaela Bojan, D. Apostol, V. Damian, P. Logofatu, F. Garoi, Iuliana Iordache

Proceedings Volume 6635, 66350Q (2007) https://doi.org/10.1117/12.741908

KEYWORDS: Refractive index, Interferometry, Liquids, Solids, Thin films, Reflectivity, Water, Spatial frequencies, Optical properties, Fringe analysis

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Proceedings Article | 8 May 2007 Paper

Time-averaged vibration mode viewing with DSPI

F. Garoi, D. Apostol, A. Sima, V. Damian, P. Logofatu, V. Nascov, Iuliana Iordache, Mihaela Bojan

Proceedings Volume 6635, 66350V (2007) https://doi.org/10.1117/12.741925

KEYWORDS: Speckle, Aluminum, Speckle pattern, Beam splitters, Digital signal processing, Interferometers, Charge-coupled devices, Visualization, Speckle interferometry, CCD cameras

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Proceedings Article | 7 May 2007 Paper

Optical encoder measurement technology

Iuliana Iordache, Mihaela Bojan, D. Apostol, V. Damian, F. Garoi, P. Logofatu, Raluca Muller, B. Savu

Proceedings Volume 6635, 663506 (2007) https://doi.org/10.1117/12.741862

KEYWORDS: Interferometers, Calibration, Atomic force microscopy, Interferometry, Light sources, Microscopes, Optical encoders, Optical testing, Laser stabilization, Helium neon lasers

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Proceedings Article | 7 May 2007 Paper

Nanometrology of microsystems: traceability problem in nanometrology

Iuliana Iordache, D. Apostol, O. Iancu, G. Stanciu, P. Logofatu, V. Damian, F. Garoi, B. Savu, M. Bojan

Proceedings Volume 6635, 663503 (2007) https://doi.org/10.1117/12.741833

KEYWORDS: Interferometers, Calibration, Metrology, Interferometry, Fringe analysis, Ferroelectric materials, Standards development, Light sources, Microelectromechanical systems, Laser stabilization

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Proceedings Article | 25 April 2007 Paper

Plane deformation state determination by digital speckle correlation

Victor Nascov, Dan Apostol, Florin Garoi, Adrian Sima

Proceedings Volume 6606, 660613 (2007) https://doi.org/10.1117/12.729660

KEYWORDS: Speckle, Correlation function, Fringe analysis, Fourier transforms, Error analysis, Surface plasmons, Plasma physics, Plasma, Physics, Optical simulations

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Proceedings Article | 25 April 2007 Paper

SNR improvement of digital speckle pattern interferograms

F. Garoi, A. Sima, D. Apostol, V. Damian, P. C. Logofătu, V. Nascov, Iuliana Iordache, Ludmila Serghei, Mihaela Bojan

Proceedings Volume 6606, 660612 (2007) https://doi.org/10.1117/12.729657

KEYWORDS: Signal to noise ratio, Speckle, Aluminum, Digital filtering, Speckle pattern, Image filtering, Image processing, Charge-coupled devices, Beam splitters, Electronic filtering

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SPIE Journal Paper | 1 February 2007

Statistical processing of Newton's rings using discrete Fourier analysis

Victor Nascov, Dan Apostol, Florin Garoi

OE, Vol. 46, Issue 02, 028201, (February 2007) https://doi.org/10.1117/12.10.1117/1.2709856

KEYWORDS: Fringe analysis, Fourier transforms, Error analysis, Optical engineering, Statistical analysis, Numerical analysis, Matrices, Holography, Light sources, Paraxial approximations

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Proceedings Article | 9 June 2006 Paper

Statistical processing of Newton's rings fringe pattern using the Fresnel transform

Victor Nascov, Dan Apostol, Florin Garoi, Victor Damian, Luliana Lordache, Petre Cãtãlin Logofãtu

Proceedings Volume 6252, 62521P (2006) https://doi.org/10.1117/12.677168

KEYWORDS: Fringe analysis, Error analysis, Fourier transforms, Statistical analysis, Numerical analysis, Ferroelectric LCDs, Nickel, Chlorine, Holography, Californium

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Proceedings Article | 14 December 2005 Paper

Interferogram analysis for flatness metrology

Victor Nascov, Adrian Timcu, Dan Apostol, Florin Garoi, Victor Damian, Iuliana Iordache, Petre Cătălin Logofătu

Proceedings Volume 5972, 59721C (2005) https://doi.org/10.1117/12.639776

KEYWORDS: Fringe analysis, Statistical analysis, Fourier transforms, Error analysis, Metrology, Spatial frequencies, Optical interferometry, Digital signal processing, Interferometry, Glasses

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Proceedings Article | 14 December 2005 Paper

Absolute measurement of length with nanometric resolution

D. Apostol, F. Garoi, A. Timcu, V. Damian, P. Logofatu, V. Nascov

Proceedings Volume 5972, 59720K (2005) https://doi.org/10.1117/12.639719

KEYWORDS: Fringe analysis, Interferometers, Error analysis, Distance measurement, Ferroelectric materials, Charge-coupled devices, Interferometry, Statistical analysis, Laser applications, Transducers

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Showing 5 of 24 publications

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