Skip to Main Content

Spring classes begin Jan. 25 as fully remote, 25% transition to in-person Feb. 1. For more information, visit COVID website.

Nikolay Lepeshkin

Nikolay Lepeshkin faculty bio headshot
Nikolay Lepeshkin Associate Teaching Professor, Associate Chair for Undergraduate Education, Transfer Coordinator


Photonics, Physics Education


  • Ph D: Physics, (2001), New Mexico State University - Las Cruces, NM, USA
  • Other: Physics, (1995), Novosibirsk State University - Novosibirsk, Russia

Selected Awards and Honors

  • 2015 Faculty Award for Teaching Excellence (2015), Teaching - University of Massachusetts Lowell

Selected Publications

  • Lepeshkin, N., Kim, W., Safonov, V.P., Zhu, J.G., Armstrong, R.L., White, C.W., Zuhr, R.A., Shalaev, V.M. (1999). Optical nonlinearities of metal-dielectric composites. Journal of Nonlinear Optical Physics and Materials, 8(2) 191-210.
  • Safonov, V.P., Zhu, J.G., Lepeshkin, N., Armstrong, R.L., Shalaev, V.M., White, C.W., Zuhr, R.A., Danilova, Y.E. (1999). Spectral dependence of cubic nonlinearity in gold nanoparticles and their fractal aggregates. IQEC, International Quantum Electronics Conference Proceedings, 25-26.
  • Safonov, V.P., Shalaev, V.M., Markel, V.A., Danilova, Y.E., Lepeshkin, N., Kim, W., Rautian, S.G., Armstrong, R.L. (1998). Spectral dependence of selective photomodification in fractal aggregates of colloidal particles. Physical Review Letters, 80(5) 1102-1105.
  • Danilova, Y.E., Lepeshkin, N., Rautian, S.G., Safonov, V.P. (1997). Excitation localization and nonlinear optical processes in colloidal silver aggregates. Physica A: Statistical Mechanics and its Applications, 241(1-2) 231-235.