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Vladislav Gerginov (Fed)

Vladislav Gerginov is a Senior Research Associate at the National Institute of Standards and Technology and the University of Colorado Boulder. His areas of research are atomic physics and atomic frequency metrology. He has worked on atomic frequency standards and metrology, deep ultraviolet metrology, and atomic spectroscopy, metrology, and sensing. He participated in the chip-scale atomic clock program at NIST, evaluated and operated the Primary Frequency Standard (caesium atomic fountain clock) PTB-CSF2 at Germany’s national metrology institute Physikalisch-Technische Bundesanstalt, developed atomic sensors for magnetic and microwave field detection, and is currently working on the Primary Frequency Standards at the National Institute of Standards and Technology. He graduated with a MSc degree from Sofia University, Bulgaria in 1995, and with a PhD degree from the University of Notre Dame, IN in 2003.

Selected Publications

  • “Scalar Magnetometry Below 100 fT/Hz1/2 in a Microfabricated Cell”, V. Gerginov, M. Pomponio, S. Knappe, IEEE Sensors 20, 21, 2020.
  • “An Atomic Sensor for Direct Detection of Weak Microwave Signals”, V. Gerginov, F. da Silva, A. Hati, C. Nelson, ‎IEEE Trans. Microw. Theory Tech. 67, 8, 3485-3493, 2019.
  • "Field-Polarization Sensitivity in rf Atomic Magnetometers", V. Gerginov, Phys. Rev. Appl. 11, 024008, 2019.
  • "Two-photon Optical Frequency Reference with Active ac Stark Shift Cancellation", Gerginov, V. and Beloy, K., Phys. Rev. Applied, 10, 014031, 2018.
  • "Advances in the accuracy, stability, and reliability of the PTB primary fountain clocks Weyers, S.; Gerginov, V.; Kazda, M.; Rahm, J.; Lipphardt, B.; Dobrev, G.; Gibble, K Metrologia 55, 6, 2018.
  • "Prospects for magnetic field communications and location using quantum sensors", V. Gerginov, F. da Silva, D. Howe, Rev. Sci. Instrum. 88, 125005, 2017.
  • "First international comparison of fountain primary frequency standards via a long-distance optical fiber link", J. Guéna, S. Weyers, M. Abgrall, C. Grebing, V. Gerginov, P. Rosenbusch, S. Bize, B. Lipphardt, H. Denker, N. Quintin, S. M. F. Raupach, D. Nicolodi, F. Stefani, N. Chiodo, S. Koke, A. Kuhl, F. Wiotte, F. Meynadier, E. Camisard, C. Chardonnet, Y. L. Coq, M. Lours, G. Santarelli, Metrologia 54, 348, 2017.
  • “Realization of a timescale with an accurate optical lattice clock”, C. Grebing, A. Al-Masoudi, S. Dörscher, S. Häfner, V. Gerginov, S. Weyers, B. Lipphardt, F. Riehle, U. Sterr, and C. Lisdat, Optica 3, 6, 563, 2016.
  • “Improved Limit on a Temporal Variation of mp/me from Comparisons of Yb+ and Cs Atomic Clocks”, N. Huntemann, B. Lipphardt, Chr. Tamm, V. Gerginov, S. Weyers, E. Peik, Phys. Rev. Lett 113, 210802, 2014.
  • “A strontium lattice clock with 3 ×10-17 inaccuracy and its frequency”, S. Falke, N. Lemke, C. Grebing, B. Lipphardt, S. Weyers, V. Gerginov, N. Huntemann, C. Hagemann, A. Al-Masoudi, S. Häfner, U. Sterr, C. Lisdat, New Journal of Physics 16, 073023, 2014.
  • “Uncertainty evaluation of the caesium fountain clock PTB-CSF2”, V. Gerginov, N. Nemitz, S. Weyers, R. Schröder, D. Griebsch and R. Wynands, Metrologia 47, 65-79, 2010.
  • “Direct Frequency Comb Spectroscopy”, M. C. Stowe, M. J. Thorpe, A. Pe’er, J. Ye, J. E. Stalnaker, V. Gerginov, S. A. Diddams, Adv. At. Mol. Phys. 55, 2007.
  • “Optical frequency measurements of 6s 2S1/2–6p 2P1/2 transition in a 133Cs and their impact on the fine-structure constant”, V. Gerginov, K. Calkins, C. E. Tanner, S. Diddams, A. Bartels, L. Hollberg, Phys. Rev. A. 73, 032504, 2006.
  • “Microfabricated atomic frequency references”, J. Kitching, S. Knappe, L. Liew, J. Moreland, P. D. D. Schwindt, V. Shah, V. Gerginov, L. Hollberg, Metrologia 42, S100-S104, 2005.
  • “High-resolution spectroscopy with a femtosecond laser frequency comb”, V. Gerginov, C. E. Tanner, A. Bartels, S. Diddams, L. Hollberg, Opt. Lett. 30, 13, 1734, 2005.
  • “Optical frequency measurements of 6s 2S1/2–6p 2P3/2 transition in a 133Cs atomic beam using a femtosecond laser frequency comb”, V. Gerginov, C. E. Tanner, S. Diddams, A. Bartels, L. Hollberg, Phys. Rev. A, 70, 042505, 2004.
  • “Observation of the nuclear magnetic octupole moment of 133Cs”, V. Gerginov, A. Derevianko, C. E. Tanner, Phys. Rev. Lett. 91, 7, 072501, 2003.
  • “Frequency tuning peculiarities of enhanced power monomode He-Ne lasers”, S. Cartaleva, Y. Dancheva, S. Gateva, V. Gerginov, Opt. and Quantum Electronics, 28, 395-403, 1996.


  • US 8,334,690: “Atomic Magnetometer and Method of Sensing Magnetic Fields” J. Kitching, S. Knappe, J. Preusser, V. Gerginov
  • US 10,965,298: "Two-photon optical frequency reference with active Stark shift cancellation", V. Gerginov
  • US 11,454,682: "Optically pumped magnetometers for communication reception", V. Gerginov, F. da Silva
  • US 11,143,721: "Noise reduction in RF atomic magnetometer", V. Gerginov
  • US 11,555,873: “Increasing the Degree of Atomic Polarization in Optically Pumped Atomic Magnetometers Based on Magnetic Field Zeroing,” V. Gerginov


  • Sofia University, Sofia, Bulgaria: “Best experimental diploma thesis”, 1995
  • Department of Commerce, USA: “Silver medal for participation in NIST’s Chip-Scale Atomic Clock team”, 2004
  • Physikalisch-Technische Bundesanstalt, Germany: “PTB President’s award for the evaluation and operation of the Primary Frequency Standard PTB-CSF2”, 2010
  • Physical Measurement Laboratory, NIST, Department of Commerce: “PML Distinguished Associate Award”, 2022


NIST-F3, a cesium fountain frequency reference

Gregory Hoth, Alexander Radnaev, Peter Mitchell, Jeffrey Sherman, Vladislav Gerginov
A cesium fountain frequency reference known as NIST-F3 is under development at the National Institute of Standards and Technology (NIST). The fountain is

A Resilient Architecture for the Realization and Distribution of Coordinated Universal Time to Critical Infrastructure Systems in the United States: Methodologies and Recommendations from the National Institute of Standards and Technology (NIST)

Jeffrey Sherman, Ladan Arissian, Roger Brown, Matthew J. Deutch, Elizabeth Donley, Vladislav Gerginov, Judah Levine, Glenn Nelson, Andrew Novick, Bijunath Patla, Tom Parker, Benjamin Stuhl, Jian Yao, William Yates, Michael A. Lombardi, Victor Zhang, Douglas Sutton
The Time and Frequency Division of the National Institute of Standards and Technology (NIST), an agency of the United States Department of Commerce (DOC), was

Patents (2018-Present)

Fiber magnetometer

Chip-Scale Atomic Magnetometer

NIST Inventors
John Kitching and Vladislav Gerginov
A magnetometer and method of use is presently disclosed. The magnetometer has at least one sensor void of extraneous metallic components, electrical contacts and electrically conducting pathways. The sensor contains an active material vapor, such as an alkali vapor, that alters at least one
Created August 1, 2019, Updated April 10, 2023