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Prospects for Narrow-line Cooling of KRb Molecules in Rovibrational Ground State
J. Kobayashi, K. Aikawa, K. Oasa +1
We propose and experimentally investigate a scheme for narrow-line cooling of KRb molecules in the rovibrational ground state. We show that the spin-forbidden $\mathrm{X^1Σ^+} \rig…
Hyperfine structure of laser-cooling transitions in fermionic erbium-167
Albert Frisch, Kiyotaka Aikawa, Michael Mark +3
We have measured and analyzed the hyperfine structure of two lines, one at 583nm and one at 401nm, of the only stable fermionic isotope of atomic erbium as well as determined its i…
Narrow-line magneto-optical trap for erbium
A. Frisch, K. Aikawa, M. Mark +5
We report on the experimental realization of a robust and efficient magneto-optical trap for erbium atoms, based on a narrow cooling transition at 583nm. We observe up to $N=2 \tim…
Predicting and verifying transition strengths from weakly bound molecules
K. Aikawa, D. Akamatsu, M. Hayashi +3
We investigated transition strengths from ultracold weakly bound 41K87Rb molecules produced via the photoassociation of laser-cooled atoms. An accurate potential energy curve of th…
Coherent transfer of photoassociated molecules into the rovibrational ground state
K. Aikawa, D. Akamatsu, M. Hayashi +6
We report on the direct conversion of laser-cooled 41K and 87Rb atoms into ultracold 41K87Rb molecules in the rovibrational ground state via photoassociation followed by stimulated…
Direct evaporative cooling of 41K into a Bose-Einstein condensate
T. Kishimoto, J. Kobayashi, K. Noda +3
We have investigated the collisional properties of 41K atoms at ultracold temperature. To show the possibility to use 41K as a coolant, a Bose-Einstein condensate of 41K atoms in t…