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Zeeman Slowing of Yb Atoms

Chang Yong Park, Eok Bong Kim, Sung Jong Park +2 more

한국광학회 학술대회논문집Jul 1, 20050 citations

Stimulated Slowing of Yb Atoms on the Narrow 1S0 →3P1 Transition

Tanaporn Na Narong, Leo W. Hollberg

We propose a method for slowing, cooling and trapping Yb atoms using stimulated forces and only the 1S0 → 3P1 transition. With laser frequency chirp, our computer simulation predicts a MOT loading rate over 108 atoms/s.

Conference on Lasers and Electro-OpticsJan 1, 20210 citations

Cooling and trapping of Single Yb atom in a high-finesse optical cavity

Yujiro Eto, Atsushi Noguchi, Peng Zhang +2 more

APSMar 1, 20100 citations

Stimulated slowing of Yb atoms on the narrow 1S0 → 3P1 transition

Tanaporn Na Narong, Tianmin Liu, Nikhil Raghuram +1 more

We analyzed bichromatic and polychromatic stimulated forces for laser cooling and trapping of Yb atoms using only the narrow ${}^{1}{S}_{0}\phantom{\rule{4pt}{0ex}}\ensuremath{\rightarrow}{\phantom{\rule{4pt}{0ex}}}^{3}{P}_{1}$ transition. Our model is based on numerical solutions of optical Bloch equations for two-level atoms driven by multiple time-dependent fields combined with Monte Carlo simulations, which account for realistic experimental conditions such as atomic beam divergence, geometry, and Gaussian laser modes. Using 1 W of laser power, we predict a loading rate of $\ensuremath{\approx}\phantom{\rule{4pt}{0ex}}{10}^{8}$ atoms/s into a 556-nm magneto-optical trap (MOT) with a slowing force of $\ensuremath{\approx}60{F}_{\text{rad}}$. We show that a square-wave modulation can produce similar stimulated forces with almost twice the velocity range and improve the MOT loading rate of Yb atoms by up to 70%.We analyzed bichromatic and polychromatic stimulated forces for laser cooling and trapping of Yb atoms using only the narrow ${}^{1}{S}_{0}\phantom{\rule{4pt}{0ex}}\ensuremath{\rightarrow}{\phantom{\rule{4pt}{0ex}}}^{3}{P}_{1}$ transition. Our model is based on numerical solutions of optical Bloch equations for two-level atoms driven by multiple time-dependent fields combined with Monte Carlo simulations, which account for realistic experimental conditions such as atomic beam divergence, geometry, and Gaussian laser modes. Using 1 W of laser power, we predict a loading rate of $\ensuremath{\approx}\phantom{\rule{4pt}{0ex}}{10}^{8}$ atoms/s into a 556-nm magneto-optical trap (MOT) with a slowing force of $\ensuremath{\approx}60{F}_{\text{rad}}$. We show that a square-wave modulation can produce similar stimulated forces with almost twice the velocity range and improve the MOT loading rate of Yb atoms by up to 70%.

arXiv:2109.09899Physical Review ANov 29, 20213 citations

Laser cooling of trapped Yb+

H. Arthur Klein, A.S. Bell, G. P. Barwood +1 more

Applied Physics BJan 1, 199044 citations

Crossed-beam slowing to enhance narrow-line ytterbium magneto-optic traps

Benjamin Plotkin-Swing, Anna Wirth-Singh, Daniel Gochnauer +3 more

We demonstrate a method to enhance the atom loading rate of a ytterbium (Yb) magneto-optic trap (MOT) operating on the 556 nm 1S0 → 3P1 intercombination transition (narrow linewidth Γg = 2π × 182 kHz). Following traditional Zeeman slowing of an atomic beam near the 399 nm 1S0 → 1P1 transition (broad linewidth Γp = 2π × 29 MHz), two laser beams in a crossed-beam geometry, frequency tuned near the same transition, provide additional slowing immediately prior to the MOT. Using this technique, we observe an improvement by a factor of 6 in the atom loading rate of a narrow-line Yb MOT. The relative simplicity and generality of this approach make it readily adoptable to other experiments involving narrow-line MOTs. We also present a numerical simulation of this two-stage slowing process, which shows good agreement with the observed dependence on experimental parameters, and use it to assess potential improvements to the method.We demonstrate a method to enhance the atom loading rate of a ytterbium (Yb) magneto-optic trap (MOT) operating on the 556 nm 1S0 → 3P1 intercombination transition (narrow linewidth Γg = 2π × 182 kHz). Following traditional Zeeman slowing of an atomic beam near the 399 nm 1S0 → 1P1 transition (broad linewidth Γp = 2π × 29 MHz), two laser beams in a crossed-beam geometry, frequency tuned near the same transition, provide additional slowing immediately prior to the MOT. Using this technique, we observe an improvement by a factor of 6 in the atom loading rate of a narrow-line Yb MOT. The relative simplicity and generality of this approach make it readily adoptable to other experiments involving narrow-line MOTs. We also present a numerical simulation of this two-stage slowing process, which shows good agreement with the observed dependence on experimental parameters, and use it to assess potential improvements to the method.

arXiv:2004.10298Review of Scientific InstrumentsSep 1, 202017 citations

Analysis of Stimulated Forces for Slowing and Trapping Yb Atoms on the Narrow 1 S 0 ↔ 3 P 1 Transition

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Analysis of Stimulated Forces for Slowing and Trapping Yb Atoms on the Narrow 1 S 0 ↔ 3 P 1 Transition

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