58 citations · 185 across the 9 of their papers we have counts for
10 papers
Miniaturized vacuum package for magneto-optical trapping of strontium
Julian Pick, Eric Henker, Florian Löwinger +17
Quantum sensors, like optical lattice clocks, undergo a continuous development from lab-based towards mobile systems. A key aspect in the miniaturization of the experimental setups…
Robust watt-level continuous-wave deep-ultraviolet lasers near 230 nm
J. Cai, M. Stoepper, P. Agarwal +20
Continuous-wave (CW) deep-ultraviolet (DUV) lasers near 230~nm enable laser cooling of AlF, Cd, and Zn, but second-harmonic generation below 237~nm relies in practice on beta-bariu…
Generation of continuous-wave laser light at 148.4 nm using cavity-enhanced second harmonic generation in
Keerthan Subramanian, Hiroki Tanaka, Simon J. Herr +22
The development of a nuclear optical clock based on \textsuperscript{229}Th is expected to influence the next generation of time and frequency standards. At its heart is the need f…
A tunable, continuous-wave 130-mW laser at 213 nm
Lukas Möller, Stephan Hannig, Stefan Truppe +1
We present a tunable, continuous-wave (CW) laser system emitting at 213 nm, based on the frequency quadrupling of a single Ti:sapph laser. The setup features two sequential, cavity…
Phase-stabilized UV light at 267 nm through twofold second harmonic generation
Benjamin Kraus, Fabian Dawel, Stephan Hannig +3
Providing phase stable laser light is important to extend the interrogation time of optical clocks towards many seconds and thus achieve small statistical uncertainties. We report…
A stable 2 W continuous-wave 261.5 nm laser for cooling and trapping aluminum monochloride
J. C. Shaw, S. Hannig, D. J. McCarron
We present a high-power tunable deep-ultraviolet (DUV) laser that uses two consecutive cavity enhanced doubling stages with LBO and CLBO crystals to produce the fourth harmonic of…
Towards a Transportable Aluminium Ion Quantum Logic Optical Clock
S. Hannig, L. Pelzer, N. Scharnhorst +7
With the advent of optical clocks featuring fractional frequency uncertainties on the order of and below, new applications such as chronometric levelling with few-cm hei…
A highly stable monolithic enhancement cavity for SHG generation in the UV
S. Hannig, J. Mielke, J. A. Fenske +4
We present a highly stable bow-tie power enhancement cavity for critical second-harmonic generation into the UV using a Brewster-cut -BaBO (BBO) nonlinear crystal. The c…
On-Line Estimation of Local Oscillator Noise and Optimisation of Servo Parameters in Atomic Clocks
Ian D. Leroux, Nils Scharnhorst, Stephan Hannig +4
For atomic frequency standards in which fluctuations of the local oscillator (LO) frequency are the dominant noise source, we examine the role of the servo algorithm that predicts…
High-bandwidth transfer of phase stability through a fiber frequency comb
Nils Scharnhorst, Jannes B. Wübbena, Stephan Hannig +4
We demonstrate phase locking of a 729 nm diode laser to a 1542 nm master laser via an erbium-doped-fiber frequency comb, using a transfer-oscillator feedforward scheme which suppre…