Dr. Armen R. Poghosyan Profile

Dr. Armen R. Poghosyan

Senior Scientific Researcher

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 3 October 2022 Poster + Paper

One-transistor memory element

A. Poghosyan, R. Hovsepyan, N. Aghamalyan, Y. Kafadaryan, H. Ayvazyan, H. Mnatsakanyan

Proceedings Volume 12229, 122290B (2022) https://doi.org/10.1117/12.2632105

KEYWORDS: Zinc oxide, Dielectrics, Polarons, Transistors, Oxygen, Field effect transistors, Electrodes, Capacitors, Capacitance, Aluminum

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Proceedings Article | 3 October 2022 Poster + Paper

Field-effect transistor based on ZnO:Li thin film with ferroelectric channel

A. Poghosyan, R. Hovsepyan, N. Aghamalyan, Y. Kafadaryan, H. Ayvazyan, H. Mnatsakanyan, S. Petrosyan

Proceedings Volume 12229, 122290A (2022) https://doi.org/10.1117/12.2632104

KEYWORDS: Transistors, Switching, Dielectric polarization, Polarization, Thin films, Zinc oxide, Field effect transistors, Picosecond phenomena, Electrodes, Sapphire

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Proceedings Article | 26 August 2015 Paper

Memristor memory element based on ZnO thin film structures

A. Poghosyan, E. Elbakyan, R. Guo, R. Hovsepyan

Proceedings Volume 9586, 95861C (2015) https://doi.org/10.1117/12.2190111

KEYWORDS: Zinc oxide, Diodes, Heterojunctions, Switching, Thin films, Lawrencium, Chemical elements, Resistance, Vacuum deposition, Oxygen

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Proceedings Article | 5 March 2015 Paper

Noninvasive continuous blood pressure monitoring

Armen Poghosyan, Vahram Mouradian, Levon Hovhannisyan

Proceedings Volume 9317, 93170G (2015) https://doi.org/10.1117/12.2086361

KEYWORDS: Blood pressure, Interference (communication), Sensors, Blood, Optical sensors, Heart, Light emitting diodes, Oxygen, Electromagnetism, Photoplethysmography

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Proceedings Article | 5 September 2014 Paper

Photoconductivity of ZnO based granular structures

Armen Poghosyan, Natella Aghamalyan, Elbak Elbakyan, Ruyan Guo, Ruben Hovsepyan, Silva Petrosyan

Proceedings Volume 9200, 92001G (2014) https://doi.org/10.1117/12.2062954

KEYWORDS: Zinc oxide, Thin films, Crystals, Fourier transforms, Lithium, Head, Oxygen, Spatial frequencies, Gallium, Magnetism

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Proceedings Article | 25 September 2013 Paper

Electronic phase transitions in transparent zinc oxide thin films

A. Poghosyan, N. Aghamalyan, R. Guo, Y. Kafadaryan, R. Hovsepyan, S. Petrosyan

Proceedings Volume 8847, 88471S (2013) https://doi.org/10.1117/12.2027431

KEYWORDS: Annealing, Zinc oxide, Oxygen, Lithium, Transition metals, Semiconductors, Gallium, Zinc, Chemical species, Temperature metrology

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Proceedings Article | 25 September 2013 Paper

Ferroelectric memory element based on thin film field effect transistor

A. Poghosyan, N. Aghamalyan, E. Elbakyan, R. Guo, R. Hovsepyan

Proceedings Volume 8847, 88471R (2013) https://doi.org/10.1117/12.2027429

KEYWORDS: Polarization, Switching, Field effect transistors, Thin films, Picosecond phenomena, Binary data, Electrons, Zinc oxide, Heterojunctions, Lithium

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Proceedings Article | 8 September 2011 Paper

Periodical poling of lithium niobate crystals with Li-enriched surface layer

A. Poghosyan, I. Ghambaryan, R. Guo, E. Vardanyan

Proceedings Volume 8120, 812017 (2011) https://doi.org/10.1117/12.893038

KEYWORDS: Crystals, Lithium niobate, Lithium, Thin films, Switching, Annealing, Nonlinear crystals, Semiconducting wafers, Electrodes, Sol-gels

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Proceedings Article | 5 March 2011 Paper

Memory elements based on thin film field-effect transistor

Natella Aghamalyan, Ruben Hovsepyan, Evgenia Kafadaryan, Silva Petrosyan, Armen Poghosyan, Eduard Vardanyan

Proceedings Volume 7998, 79980A (2011) https://doi.org/10.1117/12.891259

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Proceedings Article | 5 March 2011 Paper

Possible reasons of preferred orientation of crystalline ZnO and LiNbO[sub]3[/sub] films produced by sol-gel method

A. Arzumanyan, I. Ghambaryan, S. Grigoryan, E. Vardanyan, R. Hovsepyan, A. Poghosyan, G. Shirinyan

Proceedings Volume 7998, 799802 (2011) https://doi.org/10.1117/12.890899

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Proceedings Article | 22 February 2011 Paper

Modulation and efficiency characteristics of miniature microchip green laser sources based on PPMgOLN nonlinear material

John Khaydarov, Stepan Essaian, Andrei Shchegrov, Slav Slavov, Gevorg Gabrielyan, Armen Poghosyan, Suren Soghomonyan

Proceedings Volume 7917, 791705 (2011) https://doi.org/10.1117/12.875772

KEYWORDS: Laser sources, Modulation, Projection systems, Laser development, Semiconductor lasers, RGB color model, Photodiodes, Lithium niobate, Nonlinear crystals, Neodymium lasers

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Proceedings Article | 18 August 2010 Paper

Pyroelectric photodetector based on ferroelectric crystal-semiconductor thin film heterostructure

Armen Poghosyan, N. Aghamalyan, R. Guo, R. Hovsepyan, E. Vardanyan

Proceedings Volume 7781, 778117 (2010) https://doi.org/10.1117/12.863037

KEYWORDS: Crystals, Pyroelectric detectors, Heterojunctions, Field effect transistors, Thin films, Transistors, Infrared radiation, Photodetectors, Zinc oxide, Electrodes

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Proceedings Article | 18 February 2010 Paper

Highly efficient and compact microchip green laser source for mobile projectors

John Khaydarov, Stepan Essaian, Greg Nemet, Andrei Shchegrov, Natalia Simanovskaia, Hakob Danielyan, Gevorg Gabrielyan, Armen Poghosyan, Suren Soghomonyan

Proceedings Volume 7582, 758202 (2010) https://doi.org/10.1117/12.843619

KEYWORDS: Projection systems, Laser sources, Semiconductor lasers, Crystals, Nonlinear crystals, Harmonic generation, Laser crystals, Lithium niobate, Waveguides, Laser development

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Proceedings Article | 2 September 2008 Paper

Modified sol-gel method for patterned lithium niobate thin film preparation

Armen Poghosyan, Ruyan Guo, Stepan Grigoryan, Aleksandr Manukyan, Eduard Vardanyan

Proceedings Volume 7056, 705614 (2008) https://doi.org/10.1117/12.793810

KEYWORDS: Crystals, Thin films, Lithium niobate, Lithium, Waveguides, Sol-gels, Integrated optics, Etching, Ultraviolet radiation, Sapphire

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Proceedings Article | 17 September 2007 Paper

Sol-gel method of p-type zinc oxide films preparation

Armen Poghosyan, XiaoNan Li, Alexandr Manukyan, Stepan Grigoryan, Eduard Vardanyan

Proceedings Volume 6698, 66981D (2007) https://doi.org/10.1117/12.734442

KEYWORDS: Zinc oxide, Nitrogen, Sol-gels, Zinc, Thin films, Gallium, Doping, Lithium, Carbon monoxide, Aluminum

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Proceedings Article | 13 September 2007 Paper

Stoichiometric lithium niobate thin films preparation by sol-gel method

Armen Poghosyan, Ruyan Guo, Alexandr Manukyan, Stepan Grigoryan

Proceedings Volume 6698, 66981C (2007) https://doi.org/10.1117/12.734353

KEYWORDS: Lithium niobate, Thin films, Crystals, Lithium, Sapphire, Sol-gels, Niobium, Zinc oxide, Transparent conducting films, Telecommunications

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Proceedings Article | 3 November 2004 Paper

Transparent conductive ZnO films for solar cell applications: photoelectric and spectral properties

Natella Aghamalyan, Ruben Hovsepyan, Armen Poghosyan

Proceedings Volume 5520, (2004) https://doi.org/10.1117/12.556791

KEYWORDS: Zinc oxide, Lithium, Ultraviolet radiation, Solar cells, Doping, Transparent conducting films, Photodetectors, Electrodes, Semiconductors, Switching

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Proceedings Article | 22 October 2004 Paper

Suppression of photorefraction in hafnium doped lithium niobate crystals

Ruben Hovsepyan, Armen Poghosyan, Eduard Vardanyan

Proceedings Volume 5560, (2004) https://doi.org/10.1117/12.556784

KEYWORDS: Crystals, Photorefraction, Lithium niobate, Lithium, Photovoltaics, Niobium, Iron, Hafnium, Polarons, Nonlinear crystals

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Proceedings Article | 22 October 2004 Paper

Light influence on domain switching process in ferroelectrics

Armen Poghosyan, Ruben Hovsepyan, Vahe Lazaryan

Proceedings Volume 5560, (2004) https://doi.org/10.1117/12.557522

KEYWORDS: Crystals, Switching, Electrodes, Electronic components, Optical lithography, Polarization, Process modeling, Lithium, Crystal optics, Phase matching

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Proceedings Article | 22 October 2004 Paper

Photodetectors on the base of ZnO thin films

Natella Aghamalyan, Ruben Hovsepyan, Armen Poghosyan, Vahe Lazaryan

Proceedings Volume 5560, (2004) https://doi.org/10.1117/12.556790

KEYWORDS: Zinc oxide, Lithium, Ultraviolet radiation, Photodetectors, Thin films, Heterojunctions, Phototransistors, Modulation, Transistors, Electrodes

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Proceedings Article | 21 October 2003 Paper

Creation of periodical antiparallel domain structure in lithium niobate crystals during growth process

I. Ghambaryan, Ruyan Guo, Ruben Hovsepyan, Armen Poghosyan, Eduard Vardanyan, V. Lazaryan

Proceedings Volume 5206, (2003) https://doi.org/10.1117/12.512459

KEYWORDS: Crystals, Lithium niobate, Polarization, Potassium, Oxides, Nonlinear crystals, Nonlinear dynamics, Modulation, Electrodes, Phase matching

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Proceedings Article | 14 June 2000 Paper

Optical control of domain structures in ferroelectrics: mechanisms and applications

Armen Poghosyan

Proceedings Volume 3992, (2000) https://doi.org/10.1117/12.388197

KEYWORDS: Crystals, Switching, Electrodes, Electronic components, Wafer-level optics, Erbium, Picosecond phenomena, Astatine, Ultraviolet radiation, Optical lithography

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Proceedings Article | 1 January 1998 Paper

Mechanism of photoconductivity fluctuations in lead molybdate crystals

Natella Agamalyan, Eduard Vartanyan, Ruben Hovsepyan, Azmen Pogosyan

Proceedings Volume 3347, (1998) https://doi.org/10.1117/12.301419

KEYWORDS: Crystals, Lead, Dynamical systems, Solitons, Photoresistors, Amplifiers, Stochastic processes, Laser crystals, Diffusion, Differential equations

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Showing 5 of 23 publications

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