J. Helmcke
Publications by Year
Research Areas
Advanced Frequency and Time Standards, Cold Atom Physics and Bose-Einstein Condensates, Advanced Fiber Laser Technologies, Spectroscopy and Laser Applications, Scientific Measurement and Uncertainty Evaluation
Most-Cited Works
- → Optical Ramsey spectroscopy in a rotating frame: Sagnac effect in a matter-wave interferometer(1991)511 cited
- → First Phase-Coherent Frequency Measurement of Visible Radiation(1996)237 cited
- → Doppler Cooling and Trapping on Forbidden Transitions(2001)166 cited
- → Optical Clock with Ultracold Neutral Atoms(2002)142 cited
- → Diode laser with 1 Hz linewidth(2006)141 cited
- → Calcium optical frequency standard with ultracold atoms: Approaching10−15relative uncertainty(2005)119 cited
- → A Ca optical frequency standard: Frequency stabilization by means of nonlinear Ramsey resonances(1989)90 cited
- → Dye laser spectrometer for ultrahigh spectral resolution: design and performance(1982)87 cited
- → High-resolution spectroscopy with laser-cooled and trapped calcium atoms(1994)82 cited
- → The optical calcium frequency standards of PTB and NIST(2004)79 cited