Dr. Mihaela A. Ghelmez Profile

Dr. Mihaela A. Ghelmez

at Univ Politehnica Bucuresti

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 22 April 2005 Paper

Laser study of thermal neutron irradiation influence on simple biological membrane models

Mihaela Dumitru Ghelmez, Elena Slavnicu, Cristian Toma, Andreea-Rodica Sterian, Razvan Trascu

Proceedings Volume 5830, (2005) https://doi.org/10.1117/12.618470

KEYWORDS: Dielectrics, Nonlinear optics, Thermal modeling, Liquid crystals, Carbon, Chemical species, Laser optics, Systems modeling, Thin films, Differential equations

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Proceedings Article | 4 November 2003 Paper

Study of some liquid crystalline fatty acid samples subjected to thermal neutron irradiation

Mihaela Ghelmez, Elena Slavnicu, Dan Slavnicu, Andreea Sterian, Bogdan Dumitru

Proceedings Volume 5226, (2003) https://doi.org/10.1117/12.519590

KEYWORDS: Liquid crystals, Molecules, Liquids, Nonlinear optics, Crystals, Crystallography, Thermal effects, Dielectrics, Physics, Optical properties

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Proceedings Article | 9 August 2002 Paper

Laser investigations on the role of cholesterol in some liquid crystal biological membrane models

Mihaela Ghelmez, Elena Slavnicu, Bogdan Dumitru, Andreea-Rodica Sterian, C. Molnar, Maria Honciuc

Proceedings Volume 4762, (2002) https://doi.org/10.1117/12.478660

KEYWORDS: Liquid crystals, Laser optics, Electrodes, Helium neon lasers, Thin films, Nonlinear optics, Dielectrics, Modulation, Wave propagation, Statistical analysis

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Proceedings Article | 29 June 2001 Paper

Optical nonlinearities in fatty acids

Mihaela Ghelmez, Maria Honciuc, Elena Slavnicu

Proceedings Volume 4430, (2001) https://doi.org/10.1117/12.432881

KEYWORDS: Liquid crystals, Nonlinear optics, Modulation, Wave propagation, Helium neon lasers, Microscopes, Far-field diffraction, Gaussian beams, Photonic devices, Feedback loops

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Proceedings Article | 29 June 2001 Paper

Control of photocurrent in semiconductors through femtosecond pulses

Valerica Ninulescu, Paul Sterian, Mihaela Ghelmez, Jianying Zhou

Proceedings Volume 4430, (2001) https://doi.org/10.1117/12.432916

KEYWORDS: Semiconductors, Semiconductor lasers, Superposition, Femtosecond phenomena, Chemical species, Strontium, Fourier transforms, Erbium, Ionization, Pulsed laser operation

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Proceedings Article | 9 April 2001 Paper

Experimental and computer studies of the functional activity in laser field of some components of the biological membrane

Mihaela Ghelmez, Bogdan Dumitru, Andreea-Rodica Sterian, Razvan Trascu

Proceedings Volume 4397, (2001) https://doi.org/10.1117/12.425171

KEYWORDS: Dielectrics, Liquid crystals, Nonlinear optics, Laser applications, Data processing, Medicine, Biology, Computer simulations, Ions, Refractive index

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Proceedings Article | 3 November 2000 Paper

Low-power laser beam interaction with irradiated substances from the biological membrane

Mihaela Ghelmez, Elena Slavnicu, Razvan Trascu

Proceedings Volume 4159, (2000) https://doi.org/10.1117/12.405911

KEYWORDS: Liquid crystals, Nonlinear optics, Electrons, Helium neon lasers, Stanford Linear Collider, Statistical analysis, Electrodes, Polarizers, Laser optics, Ionization

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Proceedings Article | 4 January 1999 Paper

Optical nonlinearities induced by laser radiation in some fatty acids from the biological membrane

Mihaela Ghelmez, Maria Honciuc, Livia Sterian, Cristian Gheorghe

Proceedings Volume 3565, (1999) https://doi.org/10.1117/12.335795

KEYWORDS: Liquid crystals, Dielectrics, Nonlinear optics, Resistance, Glasses, Laser optics, Capacitance, Pulsed laser operation, Electrodes, Laser glasses

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Proceedings Article | 23 September 1998 Paper

Liquid crystalline state of some fatty acids and mixtures

Mihaela Ghelmez, Maria Honciuc, Mihai Piscureanu

Proceedings Volume 3488, (1998) https://doi.org/10.1117/12.323700

KEYWORDS: Liquid crystals, Molecules, Liquids, Dielectrics, Crystals, Resistance, Laser optics, Absorption, Mode conditioning cables, Electrodes

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Proceedings Article | 2 July 1998 Paper

Stabilization of unstable states in a modulated noisy CO2 laser

Valerica Ninulescu, Paul Sterian, Mihaela Ghelmez, Mihai Piscureanu

Proceedings Volume 3405, (1998) https://doi.org/10.1117/12.312743

KEYWORDS: Modulation, Carbon dioxide lasers, Chaos, Control systems, Feedback loops, Systems modeling, Polarization, Beam controllers, Laser applications, Computing systems

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Proceedings Article | 1 January 1998 Paper

Operating conditions of some liquid crystals in interactions with physical fields

Mihaela Ghelmez

Proceedings Volume 3319, (1998) https://doi.org/10.1117/12.301311

KEYWORDS: Liquid crystals, Magnetism, Crystals, Liquids, Nonlinear optics, Temperature metrology, Nonlinear crystals, Glasses, Dielectrics, Laser crystals

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Proceedings Article | 1 January 1998 Paper

Response of fatty acid systems with mesomorphic behavior to action of external electric field

Maria Honciuc, Elena Slavnicu, Victor Stoian, Mihaela Ghelmez

Proceedings Volume 3319, (1998) https://doi.org/10.1117/12.301315

KEYWORDS: Electrons, Biological research, Temperature metrology, Systems modeling, Statistical modeling

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SPIE Journal Paper | 1 May 1996

New nonlinear optical materials from living matter

Mihaela Ghelmez, Maria Honciuc, Mihai Piscureanu, Cristian Gheorghe

OE, Vol. 35, Issue 05, (May 1996) https://doi.org/10.1117/12.10.1117/1.600693

KEYWORDS: Liquid crystals, Nonlinear optical materials, Dielectrics, Nonlinear optics, Molecules, Optoelectronics, Complex systems, Statistical analysis, Optical engineering, Liquids

Proceedings Article | 13 October 1995 Open Access

Optics study and research by computer-aided training

Mihaela Ghelmez, Sigward Nilsson, Goeran Karlsson

Proceedings Volume 2525, (1995) https://doi.org/10.1117/12.224051

KEYWORDS: Physics, Refractive index, Engineering education, Nonlinear optics, Transient nonlinear optics, UV optics, Complex systems, Systems modeling, Geometrical optics, Optical fibers

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Proceedings Article | 17 August 1994 Paper

Estimation of the cholesterol percentages in mixtures of arachidonic acid and cholesterol

Mihaela Ghelmez, Maria Honciuc, Cristian Gheorghe

Proceedings Volume 2137, (1994) https://doi.org/10.1117/12.182774

KEYWORDS: Liquid crystals, Dielectrics, Liquids, Lithium, Microscopes, Neon, Neodymium, Molecules, Crystals, Ions

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Proceedings Article | 27 July 1994 Paper

Interaction of some laser radiations with the lauric acid in mesophase

Mihaela Dumitru, Maria Honciuc, Ion Popescu

Proceedings Volume 2138, (1994) https://doi.org/10.1117/12.181354

KEYWORDS: Liquid crystals, Optical activity, Helium neon lasers, Infrared radiation, Crystals, Dielectrics, Stanford Linear Collider, Astatine, Glasses, Optoelectronics

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Proceedings Article | 19 November 1993 Paper

Nonlinear optical behavior of the arachidonic acid and their mixtures with other fatty acids and cholesterol in mesophase

Mihaela Dumitru, Ion Popescu, Maria Honciuc

Proceedings Volume 1985, (1993) https://doi.org/10.1117/12.162737

KEYWORDS: Nonlinear optics, Dielectrics

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Proceedings Article | 1 October 1991 Paper

Nonlinear optical components with liquid crystals

Mihaela Dumitru, Maria Honciuc, Livia Sterian

Proceedings Volume 1500, (1991) https://doi.org/10.1117/12.46856

KEYWORDS: Nonlinear optics, Liquid crystals, Phase conjugation, Optical components, Biomedical optics, Laser optics, Bistable lasers, Optical microscopy, Germanium, Dielectrics

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Showing 5 of 18 publications

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