Quantum Optics and Nanophotonics Research Group
David Hayrapetyan

Assoc. Prof. David Hayrapetyan

Principal Investigator

Assoc. Prof David B. Hayrapetyan is a the principal investigator in our group and holds the position of the Head of the Department of Physics and Quantum Nanostructures at Russian-Armenian University. Holding a Ph.D. in Physics, Dr. Hayrapetyan has made remarkable contributions to the study of quantum dots and nanocomposite materials. He has authored and co-authored 88 scholarly articles that have garnered 774 citations across 375 documents, boasting an impressive h-index of 19. His research is widely published in esteemed journals and conference proceedings, covering topics from optical properties of biexcitons in ellipsoidal quantum dots to the influence of hydrostatic pressure on electronic states in spherical quantum dots. Additionally, Dr. Hayrapetyan has made significant contributions to educational literature through methodological publications and book chapters, including a Springer chapter on "Electronic and Optical Characteristics of Core/Shell Quantum Dots." His career stands as a testament to both his scientific innovation and his commitment to educational excellence.


  • Quantum Dots as Nanoscale Device Components
  • Quantum Optics
  • Quantum Information


  • 2014: Appointed as Associate Professor in the field of Physics.
  • 2009: Earned a Doctor of Physics (PhD) in the field of Semiconductor and Insulator Physics from Yerevan State University. Thesis titled "Investigation of electronic and optical properties of quantum structures with nontrivial geometry."
  • 2006-2009: Postgraduate Student at the Department of Physics, State Engineering University of Armenia.
  • 2004-2006: Earned a Master's degree in Physics from the Department of Solid State Physics, Faculty of Physics, Yerevan State University. Thesis titled "Direct interband light absorption in strongly oblate and strongly prolate ellipsoidal quantum dots."
  • 2000-2004: Earned a Bachelor's degree in Physics from the Department of Solid State Physics, Faculty of Physics, Yerevan State University. Thesis titled "Electron states in a strongly flattened ellipsoidal quantum dot in the presence of electric and magnetic fields.

Selected Publications

Effect of Gaussian and Bessel laser beams on linear and nonlinear optical properties of vertically coupled cylindrical quantum dots

T.A. Sargsian, P.A. Mantashyan, D.B. Hayrapetyan

Nano-Structures & Nano-Objects, 33, p.100936, 2023.

Hydrogen-like donor impurity states in strongly prolate ellipsoidal quantum dot

D.B. Hayrapetyan

Physica E: Low-dimensional Systems and Nanostructures, 145, p.115493, 2023.

Nonlinear optical properties of coupled quantum dots in peanut configuration

E.S. Hakobyan, D.A. Baghdasaryan, E.M. Kazaryan, P.A. Mantashyan, D.B. Hayrapetyan

Philosophical Magazine, pp.1-16, 2023.

Optical Properties of Conical Quantum Dot: Exciton-Related Raman Scattering, Interband Absorption and Photoluminescence

S.P. Gavalajyan, G.A. Mantashian, G.T. Kharatyan, H.A. Sarkisyan, P.A. Mantashyan, S. Baskoutas, D.B. Hayrapetyan

Nanomaterials, 13(8), p.1393, 2023.

Modeling of Quantum Dots with the Finite Element Method

G.A. Mantashian, P.A. Mantashyan, D.B. Hayrapetyan

Computation, 11(1), p.5, 2023.

Talbot effect in InAs/GaAs coupled cylindrical quantum dots ensemble

P. Mantashyan, G. Mantashyan, D. Hayrapetyan

Physica E: Low-dimensional Systems and Nanostructures, 148, p.115662, 2023.