616 citations · 919 across the 9 of their papers we have counts for
9 papers
Noise-induced servo errors in optical clocks utilizing Rabi interrogation
T. Lindvall, A. E. Wallin, K. J. Hanhijärvi +1
We show that in optical clocks based on Rabi interrogation, both laser-frequency and magnetic-field flicker () noise with zero mean can lead to servo errors at the …
High-Accuracy Determination of Paul-Trap Stability Parameters for Electric-Quadrupole-Shift Prediction
T. Lindvall, K. J. Hanhijärvi, T. Fordell +1
The motion of an ion in a radiofrequency (rf) Paul trap is described by the Mathieu equation and the associated stability parameters that are proportional to the rf and dc electric…
Real-Time Optical Time Interpolation Using Spectral Interferometry
Thomas Fordell
A simple scheme for all-optical time interpolation using spectral interferometry is put forward that is in principle capable of single-shot measurements. In this method, the arriva…
Open-Loop Polarization Mode Dispersion Mitigation for Fibre-Optic Time and Frequency Transfer
Thomas Fordell
The non-reciprocal and dynamic nature of polarization mode dispersion (PMD) in optical fibers can be a problem for accurate time and frequency transfer. Here a simple, passive solu…
Broadband, unpolarized repumping and clearout light sources for Sr single-ion clocks
T. Fordell, T. Lindvall, P. Dubé +3
Future transportable optical clocks require compact and reliable light sources. Here, broadband, unpolarized repumper and state clearout sources for Sr+ single-ion optical clocks a…
Unpolarized, incoherent repumping light for prevention of dark states in a trapped and laser-cooled single ion
T. Lindvall, T. Fordell, I. Tittonen +1
Many ion species commonly used for laser-cooled ion trapping studies have a low-lying metastable 2D3/2 state that can become populated due to spontaneous emission from the 2P1/2 ex…
Photoemission time-delay measurements and calculations close to the 3s ionization minimum in Ar
D. Guenot, K. Klunder, C. L. Arnold +12
We present experimental measurements and theoretical calculations of photoionization time delays from the and shells in Ar in the photon energy range of 32-42 eV. The exp…
Simultaneous compression and characterization of ultrashort laser pulses using chirped mirrors and glass wedges
Miguel Miranda, Thomas Fordell, Cord Arnold +2
We present a simple and robust technique to retrieve the phase of ultrashort laser pulses, based on a chirped mirror and glass wedges compressor. It uses the compression system its…
Probing single-photon ionization on the attosecond time scale
K. Klünder, J. M. Dahlström, M. Gisselbrecht +9
We study photoionization of argon atoms excited by attosecond pulses using an interferometric measurement technique. We measure the difference in time delays between electrons emit…