Отдел международной аспирантуры и докторантуры

Andrei V. Ivanov,

Candidate of Science (Optics) (ITMO University)

Research interests

Investigation of optimizing the optical pumping of solid-state laser systems in order to reduce the thermal load of the active element through the use of optical cooling mechanisms.

 Features of the PhD program

List of the supervisor’s research projects (participation/supervision)

Study of the effect of optical pumping on the operation of an erbium-ytterbium laser to obtain a thermally

stabilized regime (principal investigator).

Optical and Electrical Properties of Hybrid Nanomaterials based on Carbon, Semiconductor, and Metal Nanostructures (investigator).

Laser cooling of ions and nanocrystals in non-linear radio frequency traps (investigator).

New types of nonlinear optical and photoinduced kinetic processes in condense matter (investigator).

Photoinduced phenomena in transparent materials: prebreakdown excitation, optical switching, processes with participation of surface and impurity states (investigator).

 List of potential thesis topics

Translational and internal optical cooling of nanocrystals doped with ytterbium ions.

Optical cooling of semiconductor nanostructures of various dimensions using dynamic Stark shift.

Laser systems with optical cooling: diamond Raman laser, crystal lasers with rare earth ions.

Publications in the last five years

10

 Key publications

• V. Rybin, S. Rudiy, D.P. Shcherbinin, M.S. Semynin, A.V. Ivanov // YAG:Yb3+ levitating polycrystal translational cooling induced by IR radiation // Proceedings of SPIE. 2022. Paper 12151-48.

• Ivanov A.V., Perlin E.Y. Vibronic coupling induced by fast Rabi oscillations for kinetic energy control in free atom // Journal of Physics B: Atomic, Molecular and Optical Physics, 2020, Vol. 53, No. 20, pp. 205005. DOI: 10.1088/1361-6455/abb012

• Kosinskii I.V., Rozhdestvensky Y.V., Ivanov A.V. Thermally stabilized operating mode of erbium-ytterbium laser // Applied Optics, 2020, Vol. 59, No. 28, pp. 8997-9002. DOI: 10.1364/AO.403389

• Vovk T.A., Rudyi S.S., Ivanov A.V., Perlin E.Y., Rozhdestvensky Y.V., Translational cooling of doped nanocrystals by Raman pulses: Towards macroscopic quantum state // Physics Letters A. 2019. V. 383. P. 923-928. DOI: 10.1016/j.physleta.2018.12.016

• A. Ivanov, Energy transfer controlled by dynamical Stark shift in two-level dissipative systems, Journal of the Optical Society of America B. 2018. V. 35, No 1. P. 20-29. https://doi.org/10.1364/JOSAB.35.000020

The most significant results of intellectual activity

Certificate, # 2015612108 (Rospatent), February 12, 2015. Ivanov A.V., Rozhdestvensky Yu.V., Perlin E.Yu. PC program for calculating time dependence of temperature for Raman scheme of laser cooling of crystals doped by RE ions.

Certificate, # 2018664807 (Rospatent), November 22, 2018. Ivanov A.V., Perlin E.Yu., Rozhdestvensky Yu.V., Popov A.A. PC program for calculating temperature dependence of the pump radiation intensity for increasing the depth of optical cooling of a crystal doped with ytterbium ions.

Certificate, # 2018664976 (Rospatent), November 27, 2018. Kosinskii I.V., Ivanov A.V., Rozhdestvensky Yu.V. Software package for analytical and numerical calculation of the dynamics of a charged particle in a multipole radio frequency trap.

 Requirements for a graduate student

For theoretical work

·         Good mathematical background and knowledge of classical and quantum mechanics.

·         Ability to work in symbolic computing systems (preferably Wolfram Mathematica).

For experimental work

·         Experience with spectroscopic instruments and laser systems.

Ability to work with application programs for processing experimental results.

 Code of the subject area of the PhD program

• Optical cooling of bulk solid materials and nanoobjects