Department ofPhysics

Bachana Lomsadze

Bachana Lomsadze
Bachana Lomsadze

Assistant Professor

Bachana Lomsadze received his Bachelor’s degree in physics from Tbilisi State University (Georgia) in 2007 and a Ph.D. in Physics from Kansas State University (KSU) in 2012. At KSU he worked in the James R. Macdonald - atomic, molecular and optical physics laboratory and studied coherent control of cold and trapped atomic and molecular systems. After graduation, he was a joint post-doctoral researcher at JILA and the University of Colorado and then a research fellow at the University of Michigan (Ann Arbor). He is a co-inventor of a novel optical method “frequency comb-based multidimensional coherent spectroscopy” that enables the measurement of materials’ optical properties and many-body interactions rapidly and with unprecedented high resolution. His work at Santa Clara University focuses on using the Nobel-Prize-Winning technology of optical frequency combs to study light-matter interactions and ultrafast dynamics in atomic/molecular systems (cold and Doppler broadened) and semiconductor nanostructures.


Selected publications:

Cover of Nature Photonics with Tri-comb spectroscopy

•  B. Lomsadze, B. Smith and S.T. Cundiff. “Tri-comb spectroscopy”. Nature Photonics 12, 677 (2018). (Featured on the coverDOI
  • B. Lomsadze and S.T.Cundiff. “Frequency-Comb Based Double-Quantum Two-Dimensional Spectrum Identifies Collective Hyperfine Resonances in Atomic Vapor Induced by Dipole-Dipole Interactions”. Physical Review Letters 120 (23), 233401, 2018
  • B. Smith, B.Lomsadze and S.T.Cundiff. “Optimum repetition rates for dual-comb spectroscopy”. Optics Express 26 (9), 12049-12056, 2018.
  • B. Lomsadze and S.T.Cundiff. “Frequency combs enable rapid and high-resolution multidimensional coherent spectroscopy” Science 357 (6358), 1389-1391, 2017.
  • B. Lomsadze and S.T.Cundiff. “Multi-heterodyne two-dimensional coherent spectroscopy using frequency combs”. Scientific Reports 7 (1), 14018, 2017.
  • B. Lomsadze and S.T.Cundiff, “Frequency comb-based four-wave-mixing spectroscopy”. Optics Letters 42 (12), 2346-2349,2017. (Editor’s choice)
  • B. Lomsadze and S.T.Cundiff, “Frequency comb-based multi-dimensional coherent spectroscopy”. Optics and Photonics News special issue “OPTICS IN 2017”.
  • B. Lomsadze, C.W.Fehrenbach, B.D.DePaola. “Measurement of ionization in direct frequency comb spectroscopy”. Journal of Applied Physics 113 (10), 103105, 2013.
  • B. Lomsadze, C.W.Fehrenbach, B.D.DePaola. “Calculation of ionization in direct frequency comb spectroscopy” Physics Review A 86 (4), 043403, 2012.
  • H. Jang, B.Lomsadze, ML. Trachy, G.Veshapidze, CW.Fehrenbach and B.D.DePaola. “Interaction of a finite train of short pulses with an atomic ladder system”. Physical Review A 82 (4), 043424, 2010.

Book chapter(s)

  • B. Lomsadze. “Saturated absorption spectroscopy for diode laser locking”. Encyclopedia of Modern Optics II. Volume 2, 227-232, 2018.


  • S.T.Cundiff and B.Lomsadze .“Multidimensional coherent spectroscopy using frequency combs”. US Patent App. 15/705.511.