Nuclear clocks based on resonant excitation of γ-transitions
- E. Peik, M. Okhapkin
- Physics
- 25 February 2015
A crossed optical cavities apparatus for a precision test of the isotropy of light propagation
- C. Eisele, M. Okhapkin, A. Nevsky, S. Schiller
- Physics
- 1 March 2008
Laser spectroscopic characterization of the nuclear-clock isomer 229mTh
- J. Thielking, M. Okhapkin, E. Peik
- PhysicsNature
- 15 September 2017
The laser spectroscopic investigation of the hyperfine structure of the doubly charged 229mTh ion and the determination of the fundamental nuclear properties of the isomer, namely, its magnetic dipole and electric quadrupole moments, as well as its nuclear charge radius are presented.
Tunable single-frequency diode-pumped Nd:YAG ring laser at 1064/532 nm for optical frequency standard applications
- M. Okhapkin, M. Skvortsov, A. Belkin, N. L. Kvashnin, S. Bagayev
- Physics
- 15 March 2002
The thorium-229 low-energy isomer and the nuclear clock
- Kjeld Beeks, T. Sikorsky, T. Schumm, J. Thielking, M. Okhapkin, E. Peik
- PhysicsNature Reviews Physics
- 25 February 2021
The 229Th nucleus has an isomeric state at an energy of about 8 eV above the ground state, several orders of magnitude lower than typical nuclear excitation energies. This has inspired the…
Tunable single-frequency diode-pumped Nd:YAG ring laser at 946 nm
- M. Okhapkin, M. Skvortsov, A. Belkin, S. Bagayev
- Physics
- 1 July 2001
Femtosecond frequency combs stabilized with a He-Ne/CH4 laser: Toward a femtosecond optical clock
- S. Bagayev, A. Dmitriyev, A. Zheltikov
- Physics
- 2001
A concept of high-precision optical frequency measurements involving the use of femtosecond frequency combs with a bandwidths exceeding the frequency of a reference laser source is discussed. This…
Tunable diode-pumped single-frequency travelling-wave Nd : YAG laser operating at 1319 nm
- S. Ignatovich, N. L. Kvashnin, M. Okhapkin, M. Skvortsov
- Physics, Materials Science
- 30 June 2012
A single-frequency travelling-wave Nd:YAG laser with a wide wavelength tuning range achieved due to the use of a temperature-controlled intracavity KTP filter is studied. The output laser…
Single-frequency intracavity doubled Yb:YAG ring laser
- M. Okhapkin, M. Skvortsov, N. L. Kvashnin, S. Bagayev
- Physics
- 15 December 2005
946-nm Nd:YAG digital-locked laser at 1.1 × 10-16 in 1 s and transfer-locked to a cryogenic silicon cavity.
- A. Didier, S. Ignatovich, E. Benkler, M. Okhapkin, T. Mehlstäubler
- PhysicsOptics Letters
- 19 February 2019
A Nd:YAG ultra-stable laser system operating at 946 nm is presented and a fractional frequency instability of 1.1×10-16 at 1 s is demonstrated by pre-stabilizing it to a 30-cm-long ULE cavity at room temperature.
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