Integrated Nanostructured Systems

A UB 2020 Academic and Strategic Strength

Aleksandr Verevkin, PhD
Aleksandr Verevkin, PhD

Department of Electrical EngineeringAssistant Professor
University at Buffalo
332 Bonner Hall
Buffalo, NY 14260

PH: (716) 645-1020
Web: http://www.ee.buffalo.edu/Verevkin.htm
E: erevkin@buffalo.edu

Laboratory
University at Buffalo
321 and 325 Bonner Hall
Buffalo, NY 14260

PH: (716) 645-1049

Affiliations


EE Laboratory of Optoelectronics
University at Buffalo
321 and 325 Bonner Hall
Buffalo, NY 14260

PH: (716) 645-3115, ext. 1236
E: verevkin@buffalo.edu

Research


Research Images

Realization of PNR mode

Realization of PNR mode in the sequentially connected nanostripes (or nanowires) device. The resulting signal is proportional to the total length of the resistive area, which, in turn, is proportional to the number of photons absorbed in the nanowire; a) one photon absorbed, b) 5 photons absorbed. In example shown, the width of nanostripe is 100 nm, and the film thickness is 4 nm.

Research Interests

Nanoelectronics; single-photon detection; optoelectronics; ultrafast photoluminescence.

Summary of Research

Within 2005-2007, I was working with the next projects:

  • experimental and theoretical study of transport phenomena in quasi-one-dimensional superconductors;
  • development of fiber-optic coupled single-photon superconducting detectors for infrared range;
  • development of the concept for the future photon number-resolved nanostripe-based detectors;
  • time-resolved study of CdSe nanoparticles photoluminescence in liquid at temperature range T=6-300 K;
  • development of x-ray imager based on EMCCD (together with Toshiba Stroke Institute).

During this period of time, 15 articles in peer-review journals have been published on related subjects.

Specialized Instrumentation

Time-resolved micro-photoluminescence setup with 40 ps temporal resolution, T=6-300K; Anritsu Spectrum Analyzer (10kHz-8.1 GHz);Torr-300 Reactive Etching system; cryogenics.

Publications

M. Bell, A. Sergeev, V. Mitin, J. Bird, A. Verevkin, and G. Gol’tsman, "One-dimensional resistive states in quasi-two-dimensional superconductors: Experiment and theory", Phys. Rev. B 76, 094521 (2007).

M. Bell, A. Antipov, B. Karasik, A. Sergeev, V. Mitin, and A. Verevkin, "Photon Number-Resolved Detection with Sequentially Connected Nanowires", IEEE Trans. on Appl. Supercond. 17, 289 (2007).

W. Slysz, M. Wegrzecki, J. Bar, P. Grabiec, M. Górska, V. Zwiller, C. Latta, P. Bohi Milostnaya, O. Minaeva, A. Antipov, O. Okunev, A. Korneev, K. Smirnov, B. Voronov, N. Kaurova, G. Gol'tsman, A. Pearlman, A. Cross, I. Komissarov, A. Verevkin, and R. Sobolewski, "Fiber-coupled single-photon detectors based on NbN superconducting nanostructures for practical quantum cryptography and photon-correlation studies", Appl. Phys. Lett. 88, 261113 (2006).

R. Rey-de-Castro, D. Wang, A.Verevkin, A. Mycielski, and R. Sobolewski, "Subpicosecond Faraday effect in Cd1-xMnxTe and its application in magneto-optical sampling", Appl. Phys. Lett. 85, 3806 (2005).

A. Lin, X. Hong, V. Wood, A. Verevkin, C.H. Ahn, R.A. McKee, F.J. Walker, E.D. Specht, "Epitaxial growth of Pb(Zr0.2Ti0.8)O3 on Si and its nanoscale piezoelectric properties", Appl. Phys. Lett. 78, 2034 (2001).