Ռադիոֆիզիկայի ֆակուլտետ
Faculty of Radiophysics
The Faculty was established in June 1975 by decision of Armenian Government (USSR era) aiming to meet growing demand in radiophysicist in military, industrial, high technology and R&D sectors of the plan - economy.:
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Hakob L. Margaryan

Leading Researcher | Faculty of Radiophysics
Education (beginning with IHE)
1971 - 1976 Graduated from State Engineering University of Armenia, Dept. Radioelectronics, Specialization: Microelectronics and Semiconductors
Qualification: Electronics Engineer
1978 - 1986 Post Graduate Study at Yerevan State University
1986 Candidate of Physical-Mathematical Sciences (Dr. of Physics), “Luminescence, Photoelectrical and Photoelectrochemical, Properties of TiO2 and ZnO Crystals”

Professional experience
1986 - up to now Senior Research Scientist Yerevan State University
2001 - 2003 ISTC A-321 Grant (Project Manager), “Investigation of Optical and Photoelectric Properties of Semiconductor - Liquid Crystal Interface”
2007 - 2009 IPP/ISTC A-1484 Grant (Project Manager), “Structural Innovation of Light Valves and Spatial Light Modulators”

Main Research Interests/ Expertise
• Optical Properties of Semiconductors
• Non Linear Optical Effects in Liquid Crystals
• Liquid Crystal-Semiconductor Interface

Current research interests
• CVD/MO CVD Thin Film Technology
• Optical Properties of Thin Films
• Photonics Elements Based on Liquid Crystal-Semiconductor Interface

Professional activities
Organizer and cochairman of International Conference of “Optics of Liquid Crystals 2011”

Intellectual Property/Ownership
Authors - H.L. Margaryan, V.M. Aroutiounian, N.H. Hakobyan, V.K. Abrahamyan,
D.L. Hovhannisyan/Owners - Yerevan State University, H.L. Margaryan, V.M. Aroutiounian, N.H. Hakobyan, V.K. Abrahamyan, D.L. Hovhannisyan, “Title- Method and Devise for Controlling of Switching and Phase Modulation of a Liquid Crystal Cell”. Armenian Patent # AM 20110007, priority 31.01.2011

Languages
Armenian, Russian, English - fluent

Conferences participated, scientific trips
• 11th International Topical Meeting on Optics of Liquid Crystals, Florida, USA, 2005
• 12th International Topical Meeting on Optics of Liquid Crystals, Puebla, Mexico, 2007
• 10th European Conference on Liquid Crystals, Colmar, France, 2009
• 13th Topical Meeting on the Optics of Liquid Crystals, Erice, Italy, 2009
• 5th World Conference on Photovoltaic Energy Conversion, Valencia, Spain, 2010
• 11th European Conference on Liquid Crystals, Maribor, Slovenia, 2011

(+374 10) 57-83-73
marhakob@ysu.am

Latest Publications (59)
H. L. Margaryan , N. H. Hakobyan , V. K. Abrahamyan, P. K. Gasparyan, A. S. Yeremyan, N. V. Tabiryan, R. Vergara
New prospects of application of liquid crystal polymer cantilever (Հեղուկ բյուրեղային պոլիմերից պատրաստված կանտիլեվերի կիրառման նոր հեռանկարներ)
2021 | Article
ԵՊՀ Գիտական տեղեկագիր, Ֆիզիկա և մաթեմատիկա, 2020, հ. 54, #3, էջ 161-171
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H. Margaryan , N. Hakobyan, V. Abrahamyan, H. Chiligaryan, P. Gasparyan, N. Tabirian, O. Goushcha
"Apparatus for filling liquid crystal device with liquid crystal substance"
2021 | Patent
PCT/IB2021/050331, 2021-01-18, Switzerland
Հ. Մարգարյան , Ն. Հակոբյան, Հ. Չիլինգարյան, Վ. Աբրահամյան, Պ. Գասպարյան
Հեղուկ բյուրեղային սարքը հեղուկ բյուրեղային նյութով լցման սարքավորում
2021 | Patent
3425 A, 2021-01-08, Հայաստան
H. L. Margaryan , N. H. Hakobyan , V. K. Abrahamyan, V. V. Belyaev, D. N. Chausov, A. S. Spakhov
New Generation Optical Elements With Centrally Symmetric Orientation Based On Liquid Crystal Polymers
2020 | Article
Proceedings of the YSU. Physical and Mathematical Sciences, 2020, 54(1), 70-76 էջ
H. Margaryan , N. Hakobyan, V. Belyaev, A. Solomatin, A. Belyaev, S. Kumar, A. Smirnov
Properties of Diffraction Optical Elements on the Base of Discotic Liquid Crystal for Display Application
2020 | Article
SID Symposium Digest of Technical Papers, 2020, Vol. 51, Issue 1, p. 1558-1561
А.Л. Маргарян , В.К. Абрамян, Н.Г. Акопян , В.М. Арутюнян , П.К. Гаспарян, В.В. Беляев, А.С. Соломатин, Д.Н. Чаусов
Метод Оптической Записи Упорядоченных Микроструктур На Основе Жидкокристаллического Полимера
2019 | Article
Известия НАН РА. Физика (Journal of Contemporary Physics (Armenian Academy of Sciences), 2019, т.54, №1, 36-43 էջ
H. L. Margaryan , N. H. Hakobyan , V. K. Abrahamyan, V. M. Aroutiounian , P. K. Gasparyan, V. V. Belyaev, A. S. Solomatin, D.N. Chausov
Optical Recording Method of Patterned Microstructures Based on Liquid Crystal Polymer
2019 | Article
Journal of Contemporary Physics (Armenian Academy of Sciences), 2019, Vol. 54, Issue 1, 27-32 էջ
Hakob Margaryan , Nune Hakobyan , Nelson Tabirian, Tigran Sargsyan, Petros Gasparyan, Valeri Abrahamyan, Hakob Chilingaryan, David Pokhsraryan
Device for real-time measuring of circular dichroism at a specific wavelength
2019 | Article
Journal of the Optical Society of America B: Optical Physics, 2019, 36, 5, D66-D69 էջ
Nune Hakobyan , Hakob Margaryan , Victor V. Belyaev, Alexey S. Solomatin, Douglas R. Suarez, Alexander G. Smirnov
Microlense liquid crystal devices on the base of cylindrical objects
2019 | Article
Journal Of The Society For Information Display, 27, 9, 536-542 էջ, 2019, 27, 9, 536-542 էջ
Hakobyan Nune , Margaryan Hakob , Chilingaryan Hakob, Tabiryan Nelson, Belyaev Victor, Solomatin Aleksey
Circular dichroism meter based on polarization diffractive waveplate
2017 | Article
Вестник московского государственного областного университета. Серия: Физика-математика, 2017, 4, стр. 88–94
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Nune H. Hakobyan , Hakob L. Margaryan , Valeri K. Abrahamyan, Vladimir M. Aroutiounian , Arpi S. Dilanchian Gharghani, Amalya B. Kostanyan, Timothy D. Wilkinson, Nelson V. Tabirian
Electro-optical characteristics of a liquid crystal cell with graphene electrodes
2017 | Article
Beilstein Journal of Nanotechnology, 2017, 8, 2802–2806 pp.
H. L. Margaryan , V. K. Abrahamyan, D. L. Hovhannisyan, N. H. Hakobyan , V. M. Aroutiounian , V. V. Belyaev, A. S. Solomatin
Recording of Geometric Phase Elements Based on Liquid Crystal Polymers
2017 | Article
Journal of Contemporary Physics (Armenian Academy of Sciences), 2017, 3, vol.52, 258–263 pp.
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Акопян Н. Г. , Маргарян А. Л. , Соломатин А. С., Мащенко В. И., Беляев В. В.
Управляемые дифракционные элементы на основе жидкокристаллических композитов
2017 | Article
Вестник московского государственного областного университета. Серия: Физика-математика, 2017, 3, стр. 76-83
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Nune H. Hakobyan , Hakob L. Margaryan , Valeri K. Abrahamyan, Vladimir M. Aroutiounian , Arpi S. Dilanchian Gharghani, Amalya B. Kostanyan, Timothy D. Wilkinson, Nelson V. Tabirian
Some electro-optical characteristics of liquid crystal cell with graphene electrodes
2017 | Thesis
14th European Conference on Liquid Crystals (ECLC-2017). p. 62
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H. L. Margaryan , V. M. Aroutiounian , N. H. Hakobyan , V. К. Abrahamyan, H. S. Chilingaryan, Arpi S. Dilanchian Gharghani
Obtaning оf Graphene by Chemical Vapor Deposition
2017 | Thesis
11th International Conference on Semiconductor Micro-& Nanoelectronics (ICSMN-2017). p. 22
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Н. Г. Акопян , А. Л. Маргарян , В. К. Абраамян, Д. Л. Оганесян, В. М. Арутюнян , В. В. Беляев, А. С. Соломатин
Запись геометрических фазовых элементов на основе жидкокристаллических полимеров
2017 | Article
Известия НАН РА. Физика. 2017․, 52, N3, стр. 353-360
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H. L. Margaryan , V. M. Aroutiounian , N. H. Hakobyan , V. К. Abrahamyan, H. S. Chilingaryan, Arpi S. Dilanchian Gharghani
Obtaning оf Graphene by Chemical Vapor Deposition
2017 | Article
Semiconductor micro- and nanoelectronics. Proceedings of the eleventh international conference. 2017, 1, pp. 169-172
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Margaryan Hakob , Hakobyan Nune , Hovhannisyan David, Abrahamyan Valeri, Aroutiounian Vladimir, Tabirian Nelson
Centrally symmetric liquid crystal polarization diffractive waveplate and its fabrication
2016 | Patent
WO 2016/183602 A1
Margaryan Hakob , Hakobyan Nune , Hovhannisyan David, Aroutiounian Vladimir , Tabirian Nelson, Rohatgi Upendra, Jo Jae, Goushcha Oleksandr, Sargsyan Tigran, Gasparyan Petros
Device and Method for measuring circular dichroism
2016 | Patent
Ֆիզիկա: 2016: WO/2016/000001
Հակոբ Մարգարյան , Դավիթ Հովհաննիսյան, Նունե Հակոբյան , Վալերի Աբրահամյան, Վլադիմիր Հարությունյան , Նելսոն Թաբիրյան
Հեղուկ բյուրեղային բևեռային դիֆրակցիոն ալիքային թիթեղ
2016 | Patent
Ֆիզիկա, օպտիկա: 2016, AM20150065
Margaryan H. , Hakobyan N. , Hovhannisyan D., Aroutiounian V. , Tabirian N., Rohatgi U., Abrahamyan V., Sargsyan T., Movsisyan A., Gasparyan P.
Device for non-invasive determination of glucose concentration in human organizm
2015 | Patent
Medical equipment, WO 2015/154105 A1, 2015
Հակոբ Մարգարյան , Նելսոն Թաբիրյան, Ուպենդրա Ոոհաջի, Վլադիմիր Հարությունյան , Նունե Հակոբյան , Վալերի Աբրահամյան, Դավիթ Հովհաննիսյան, Տիգրան Սարգսյան, Արտաշես Մովսիսյան, Պետրոս Գասպարյան
Մարդու օրգանիզմում գլյուկոզայի պարունակության ոչ ինվազիվ որոշման սարք
2015 | Patent
Բժշկական սարքաշինություն, 2963 A, 2015
Radiation control in the mid IR wavelength range using the liquid crystal phase grating
2015 | Article
Journal of Contemporary Physics (Armenian Academy of Sciences), Armenia, 2015, Volume 50, Issue, 55-63 pp.
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Управление излучением в среднем ИК диапазоне длин волн с помощью жидкокристаллической фазовой решетки
2015 | Article
Известия НАН РА. Физика, Армения, 2015, т. 50, N 1, 74-84 стр.
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Technique for spectropolarimetry based on liquid crystal polarization diffraction grating
2015 | Article
Molecular Crystals and Liquid Crystals, Great Britain, 2015, v. 615, 63-69 pp.
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H. L. Margaryan , V. M. Aroutiounian , N. H. Hakobyan, D. L. Hovhannisyan, V. K. Abrahamyan
Influence of the voltage applied to the semiconductor substrate on birefringence of nematic liquid crystal
2010 | Article
Molecular Crystals and Liquid Crystals, v. 525, p. 78–87, 2010
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H. L. Margaryan , N. A. Shurpo, S. V. Serov, A. V. Shmidt, N. V. Kamanina
Features of fullerenes and carbon nanotubes for nonlinear optics and disply application
2009 | Article
Diamond & Related Materials, v. 18, p. 931-934, 2009
V. K. Abrahamyan, N. H. Hakobyan, V. M. Aroutiounian , N. V. Kamanina, H. L. Margaryan , D. L. Hovhannisyan, D. K. Pokhsraryan
Influence of additional electric field on the birefringence of a nematic liquid crystal
2009 | Article
Journal of Contemporary Physics (Armenian Academy of Sciences), v. 44, № 6, p. 283-290, 2009
H. Margaryan , V. Aroutiounian , V. Babajanyan, N. Hakobyan, V. Harutyunyan, V. Abrahamyan
Investigation of Transient Processes in Nematic Liquid Crystal Cells with Semiconductor Substrate, Caused by the Electric Field Applied to Semiconductor
2008 | Article
Mol. Cryst. Liq. Cryst., v. 488, p. 231-237, 2008
H. L. Margaryan , V. M. Aroutiounian , A. L. Kesoyan, G. Lopez
About the Possibility of Carrying out a Revote Scientific Experiment in Real Time Mode with the Use Internet
2007 | Article
Reports of National Academy of Sciences of Armenia, v. 107, №.2, p. 132-139, 2007
H. Margaryan , V. Aroutiounian , V. Babajanyan, N. Hakobyan, V. Harutyunyan, V. Abrahamyan
Investigation of oscillations in nematic liquid crystal cells with semiconductor substrate, caused by the electric field applied to semiconductor
2007 | Article
12-th International Topical Meeting on Optics of Liquid Crystals, 1-5 October, Puebla City, Mexico, Book of abstracts, p.127, 2007
H. Margaryan , V. Aroutiounian , V. Babajanyan, N. Hakobyan, D. Harutyunyan, V. Abrahamyan
Some peculiarities of photorefraction in nematic liquid crystal cells with a semiconductor substrate
2007 | Article
12-th International Topical Meeting on Optics of Liquid Crystals, 1-5 October, Puebla City, Mexico, Book of abstracts, p. 49, 2007
Automated System for Investigation of Spectral Characteristics of Optical and Photoelectric Properties of Semiconductors
2006 | Article
Journal of Contemporary Physics, v. 41, № 4, p. 296-301, 2006
A. O. Arakelyan, V. M. Aroutiounian , H. L. Margaryan , V. A. Meliksetyan, S. R. Nersisyan, N. V. Tabiryan
Interface effects on semiconductor liquid crystal structure
2004 | Article
Mol. Cryst. Liquid Cryst, v. 422, p. 497-506, 2004
Arakelyan A. O., Aroutiounian V. M. , Margaryan H. L. , Meliksetyan V. A., Nersisyan S. R., Tabirian N. V.
Influence of a semiconductor-liquid crystal interfacial layer on the orientational effects
2003 | Article
Journal of Contemporary Physics, v. 38, № 2, p. 24-31, 2003
Margaryan H. L. , Aroutiounian V. M. , Meliksetyan V. A., Darbasyan A. T., Arakelyan A. O., Khalatyan A. V., Tabirian N. V.
Device for measuring laser beam intensity
2003 | Article
Proceedings of SPIE, v. 5213, p. 278-282, 2003
V. Tabiryan, U. A. Hrozhyk, H. L. Margaryan , M. J. Mora, S. R. Nersisyan, S. V. Serak
Nonlinear optical absorption and related phenomena in liquid crystal
2002 | Article
Materials Research Society Symp. Proc., v. 709, p. CC4.5 – CC4.5-11, 2002
Optical transitions coupled with the two-dimensional surface subbands
1998 | Article
Applied Surface Science, v. 134, p. 267-270, 1998
M. A. Bolshtyansky, H. L. Margaryan , N. V. Tabiryan, B.Ya. Zel’dovich
Realization and development of briefing beam reconstruction algorithm and visualization methods
1998 | Article
Conference on Lasers and Electro-Optics (CLEO’98), San Francisco, CA, USA, 1998
V. M. Aroutiounian , V. A. Meliksetyan, H. L. Margaryan , A. L. Kesoyan
Influence of surface excitons on photocurrent across the semiconductor-electrolyte interface
1997 | Article
Surface Review and Letters, v. 4, № 5, p. 929-931, 1997
Investigations of the semiconductor-electrolyte interface in the presence of the longitudinal and cross surface fields
1997 | Article
Surface Review and Letters, v. 4, № 5, p. 1051-1054, 1997
Influence of optical excitation of tow-dimensional surface subbands o photocurrent across semiconductor-electrolyte interface
1997 | Article
Surface Review and Letters, v. 4, № 5, p. 933-935, 1997
V. M. Aroutiounian , V. A. Meliksetyan, H. L. Margaryan , A. L. Kesoyan
Method of surface state investigation at low temperatures
1997 | Article
Surface Review and Letters, v. 4, № 5, p. 1055-1058, 1997
V. M. Aroutiounian , A. T. Darbasian, A. L. Kesoyan, H. L. Margaryan
Preparation and investigation of semiconducting multycomponent thin films
1996 | Article
Proceedings of NAS of Armenia, v. 31, № 5, p. 202-208, 1996
V. M. Aroutiounian , S. Kh.Vardanian, H. L. Margaryan , V. A. Meliksetyan
Effect of surface potential on the physical processes in photoelectrochemical converters of solar energy
1993 | Article
Appl. Solar Energy, № 6, p. 8-15, 1993
V. M. Aroutiounian , S. Kh. Vardanian, M. L. Dimaksian, H. L. Margaryan , V. A. Meliksetyan, R. E. Sarukhanian
Feasibility of surface state using photoconductivity spectra
1992 | Article
Sov. Phys. Semicond., v. 26, № 3, p. 312-314, 1992
V. M. Aroutiounian , M. L. Dimaksian, H. L. Margaryan , S. Kh. Vardanian
Electrophysical properties of CulnSe2
1992 | Article
Unorganic Materials., v. 19, № 3, p. 203-213, 1992
Influence of exciton field dissociation o photocurrent in semiconductors
1990 | Article
Sov. Phys. Semicond., v. 24, № 1, p. 203-206, 1990
V. M. Harutunian , H. L. Margaryan , V. A. Meliksetyan, J. R. Panossian
Surface excitons in ZnO crystals
1989 | Article
J. Phys. Condens. Matter, v.1, № 5, p. 847-854, 1989
Low temperature spectra of ZnO crystals in the exciton resonance region
1989 | Article
Sov. Phys. Solid State, v. 31, № 11, p. 263-266, 1989
Sensitization of semiconductors by a surface field formed in contact with an electrolyte
1989 | Article
Sov. Phys. Semicond., v. 23, № 11, p. 2062-2064, 1989
J. R. Panossian, Z. A. Kasamanian, H. L. Margaryan , O. A. Adamian
Surface electron states on the TiO2-electrolyte interface
1988 | Article
Sov. Electrochemistry, № 7, p. 949-953, 1988
V. M. Harutunian , A. R. Mailian, H. L. Margaryan , V. A. Meliksetyan, J. R. Panossian
Phtoelectrochemical conversion of solar energy by using of the exciton absorption
1987 | Article
J. of Electrochemical Society, v.134, №3, p. 147C, 1987
Influence of exciton absorption on the photoconductivity and photocurrent spectra of ZnO-electrolyte interface
1986 | Article
Sov. Phys. Solid State, v. 28, № 5, p. 1518-1521, 1986
Наблюдение поверхностных электронно-дырочных скоплений (конденсатов) в монокристаллах ZnO (Մակերևութային էչեկտրոնախոռոչային կուտակումների (կոնդենսատորների) դիտարկումը ZnO մոնոբյուրեղներում)
1985 | Article
ԵՊՀ Գիտական տեղեկագիր, Բնական գիտություններ, 1985, #2, էջ 148-151 (ռուսերեն)
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V. M. Aroutiounian , S. Kh. Vardanian, H. L. Margaryan , V. A. Meliksetyan, R. E. Sarukhanian
The influence of exciton field dissociation on the efficiency of photoelectrochemical production of hydrogen
1984 | Article
J. Hydrogen Energy, v. 19, № 3, p. 203-213, 1984
J. R. Panossian, V. M. Harutunian , A. G. Sarkisian, V. A. Meliksetyan, H. L. Margaryan
Some peculiarity of generation-recombination processes on semiconductor-electrolyte junction
1982 | Article
Sov. Phys. Semicond., v.16, № 7, p.1298-1301, 1982
V. M. Harutunian , V. A. Meliksetyan, J. R. Panossian, H. L. Margaryan , A. G. Sarkisian
Influence of surface recombination on the efficiency of water photolysis
1981 | Article
Appl. Solar Energy, № 4, p. 3-10, 1981
Влияние легирующих добавок на электрофизические и фотоэлектрохимические свойства TiO2
1981 | Article
Ученые зап. Ер. Гос. Унт. Физика 1, 1981 г.