Rafik S. Hakobyan
Biography
Education
1978: MS in Physics, Yerevan State University, Yerevan, Armenia
1981 – 1984: PhD student in the Physics Department of the Yerevan State University and Institute of Mechanics Problem in Moscow

Academic degrees
Ph.D. Thesis: “Coherent light interaction with orientational and hydrodynamical motions in liquid crystals”, 1985, Kiev State University, Kiev, Ukraine
D. Sc. Thesis: “Orientational, light-induced hydrodynamic phenomena in liquid crystals and related optical nonlinearities”, 1995, Institute of Laser Technology, Yerevan, Armenia

Professional experience
1978 - 1981: Laboratory assistant Optics chair (OC), Physics department (PD), Yerevan State University (YSU).
1985 - 1986: Junior Scientist, OC, PD, YSU.
1986 - 1993: Senior Research Scientist, OC, PD, YSU.
1993 - 2000: Associate Professor, OC, PD, YSU.
2000 - 2007: Professor, head of research group, OC, PD, YSU.
2007 - 2012: Head of Optics chair, Physics department, Yerevan State University.
Since 2011 up to present: Professor, head of research group, Optics chair, YSU.
Since 2016 up to present: head of “Optoelectronics and Photonics” laboratory, YSU.
Since 2011 up to present: Senior Researcher, Beam Engineering for Advanced Measurements Co., 1300 Lee Road, Orlando, FL 32810.

Research experience
Visiting researcher (or professor)
Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS), University of Metz and Supelec, France, 2008
University of Lens, France, 2008
Center for Research and Education in Optics and Lasers (CREOL) and Beam Engineering for Advanced Measurement Corporation, Orlando, FL, USA, 2002, 2004
Laval University, Center for Optics, Photonics and Lasers, Faculty of Sciences and Engineering, Department of Physics, Engineering Physics and Optics, Quebec, Canada, 2001, 2003
Institute of Applied Physics, Darmstadt, Germany, 1993
University of Yena, Germany, 1987

Academic courses thought
The physics of optical phenomena
Introduction in nonlinear physics
Nonlinear optics and laser physics
Linear and nonlinear dynamics of light field
The physics of liquid crystals
Hydrodynamics of liquid crystals
Nonlinear optics of liquid crystals

Supervision of MS studies
Since 1985 more than 100 MS students some of them now are studying or working in USA, Canada, Japan, UK, France, German, Greece and others

Supervision of PhD studies
“The laser emission interaction with defect containing periodic structured liquid crystals” - Karen Allahverdyan, 2012
“Investigations of orientational optical nonlinearity in liquid crystals conditioned by thermomecha-nical mechanism” – Gevorg Gevorgyan, 2011
“Laser – induced thermomechanical phenomena and new mechanism of strong orientational optical nonlinearity” - Jafar Poursamad Bonab, 2009
“The peculiarities of anisotropic diffraction gratings” – Gegham Zakharyan, 2008
“Dynamics of photo-polymerization phenomena and diffraction structure formation in composites of polymer dispersed liquid crystals” – Arayik Aslanyan, 2008
“The formation and peculiarities of diffraction gratings in photopolymer dispersed liquid crystalline materials” – Artur Galstyan, 2004
“Experimental study of thermomechanical phenomena in nematic liquid crystals”-Emin Santrosyan, 2000

Professional interests
Nonlinear optics, light-induced hydrodynamics and thermomechanics of liquid crystals, optofluidics, Jones matrix methods in optics and diffraction grating in polymer dispersed liquid crystals

Principal achievements / contributions
Conservation laws and integration of the equilibrium equation of liquid crystals
Orientational instability of liquid crystal at hydrodynamical flows
Orientational optical nonlinearity near the non-optical instabilities
Laser induced hydrodynamics and hydrodynamical nonlinearities
Thermomechanical effects in deformed nematics
Anisotropic Diffraction Holograms Recorded in Polymer-Dispersed Liquid Crystals

Participation in grant projects
ECO-NET Projet: 21310WD 2009, ECO-NET Projet: 18843TM 2008
2003 - 2011: NATO Grant - SfP 978027
2002 - 2004: CRDF CGP grant number AP2 - 2302 - YE - 02
1997 - 1998: INTAS 97 - 1672
1993: Short - term research grant of International Science Foundation
1994 - up to date: - Armenian Grant
1993: Grant of Armenian professional society in USA

Languages
Armenian, Russian, English

Organizing of international conferences
Chairman of organizing committee of the 14th International Topical Meeting on “OLC 2011” (25 September – 1 October, Yerevan, Armenia, 2011)
Guest editor of the Proceedings of the 14th International Topical Meeting on Optics of Liquid Crystals, OLC 2011
Co - chairman of organizing committee of the Young Optician School (2-7 May, Yerevan, Armenia, 2007)
Secretary of the First International Congress of Armenian Physicists (11-15 September, Yerevan, Armenia, 2005)

Membership
PhD and doctor of science Committee Member, Radik Martirosyan, Yerevan State University, since 1996; member of American Optical Society (OSA), since 2011

Awards received
Diploma of the National Academy of Armenia

rhakob@ysu.am

Rafik S. Hakobyan

Professor | Faculty of Physics - Chair of Optics
 
 

Book

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Ոչգծային ֆիզիկա | Մեթոդական աշխատանք, Երևան, 2006, 165 էջ

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Ոչ գծային ֆիզիկայի ներածություն | ԵՊՀ հրատ., Երևան 2006, 166 էջ

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Մակածված փուլային անցումներ և հիդրոդինամիկական անկայունություններ հեղուկ բյուրեղներում | «Մանկավարժ», Երևան, 2000, 184 էջ
 

Article

М. Р. Акопян, Р. С. Акопян

Принудительная конвекция в легированных наночастицами нематиках в отсутствие переориентации | Известия НАН РА. Физика. 2016, 51(3), стр. 363-370 |

R. B. Alaverdyan, M. R. Hakobyan, R. S. Hakobyan, Yu. S. Chilingaryan

Гравитационный и термокапиллярный механизмы возбуждения гидродинамических движений в жидких кристаллах лазером с пространственно периодической структурой интенсивности | Известия НАН Армении, Физика, 2014, т.49, №3, с. 177-189

R. B. Alaverdyan, M. R. Hakobyan, R. S. Hakobyan, Yu. S. Chilingaryan

Лазерно-индуцированные термокапиллярные волны в изотропных и анизотропных жидкостях | Изв. НАН РА, Физика, 49(4), pp. 230–240, 2014

M. R. Hakobyan, R. B. Alaverdyan, Yu. S.Chilingaryan, R. S. Hakobyan

Gravitational and Thermocapillary Mechanisms of Hydrodynamic Motions in Liquid Crystals Induced by Laser with a Spatially Periodic Intensity Structure | J. Contemp. Phys., 49(3), pp. 110-118, 2014

M. R. Hakobyan, R. B. Alaverdyan, R. S. Hakobyan, Yu. S. Chilingaryan

Enhanced Physical Properties of Nematics Doped with Ferroelectric Nanoparticles | Armenian Journal of Physics, 7(1), pp. 11-18, 2014
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Thesis

A. K. Aleksanyan, A. K. Minasyan, R. S. Hakobyan

Theoretical study of convective motions in liquids and liquid crystals induced by laser radiation with Gaussian cross distribution of intensity | 14th Topical Meeting on the Optics of Liquid Crystals, OLC–2011, P-95, September 25 - October 1 2011, Marriott, Yerevan, Armenia

O. Buluy, D. Burseva, M.R. Hakobyan, John W. Goodby, M. Kolosov, Yu. Reznikov,, R. S. Hakobyan, K. Slyusarenko, M. Prodanov, V. Vashchenko

Nematic-isotropic transition in the ferromagnetic nanoparticles doped thermotropic nematic liquid crystals | 14th Topical Meeting on the Optics of Liquid Crystals, OLC–2011, P-8, September 25 - October 1 2011, Marriott, Yerevan, Armenia

A. M. Galstyan, G. G. Zakharyan, R. S. Hakobyan

Polarization properties of thin anisotropic diffraction gratings | 11th Topical Meeting on the Optics of Liquid Crystals, OLC–2009, P66, September 28th - October 2nd 2009, Erice, Sicily (Italy)

G. S. Gevorgyan, A. K. Aleksanyan, R. S. Hakobyan

Orientational Optical Nonlinearity of Twisted Nematic Liquid Crystal Due to the Thermomechanical Effect | 11th Topical Meeting on the Optics of Liquid Crystals, OLC–2009, P21, September 28th - October 2nd 2009, Erice, Sicily (Italy)

K. M. Sargsyan, T. V. Galstian, R. S. Hakobyan

Photo-induced Surface Relief Modulation due to the Surface Tension Anisotropy | 12th International Topical Meeting on “OLC 2007”, Puebla, Mexico, p. 122 (2007)
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