Geometrically asymmetric optical cavity for strong atom-photon coupling

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Kawasaki A, Braverman B, Pedrozo-Penafiel E, Shu C, Colombo S, Li Z, Ozel O, Chen W, Salvi L, Heinz A, Levonian D, Akamatsu D, Xiao Y, Vuletic V
Zeitschrift: Physical Review A
Jahr der Veröffentlichung: 2019
Band: 99
Heftnummer: 1
ISSN: 1050-2947
eISSN: 2469-9926


Optical cavities are widely used to enhance the interaction between atoms and light. Typical designs using a geometrically symmetric structure in the near-concentric regime face a tradeoff between mechanical stability and high single-atom cooperativity. To overcome this limitation, we design and implement a geometrically asymmetric standing-wave cavity. This structure, with mirrors of very different radii of curvature, allows strong atom-light coupling while exhibiting good stability against misalignment. We observe effective cooperativities ranging from ηeff=10 to ηeff=0.2 by shifting the location of the atoms in the cavity mode. By loading Yb171 atoms directly from a mirror magneto-optical trap into a one-dimensional optical lattice along the cavity mode, we produce atomic ensembles with collective cooperativities up to Nη=2×104. This system opens a way to preparing spin squeezing for an optical lattice clock and to accessing a range of nonclassical collective states.

Autor(en) der externen Einrichtung(en)
MIT-Harvard Center for Ultracold Atoms (CUA)


Kawasaki, A., Braverman, B., Pedrozo-Penafiel, E., Shu, C., Colombo, S., Li, Z.,... Vuletic, V. (2019). Geometrically asymmetric optical cavity for strong atom-photon coupling. Physical Review A, 99(1).

Kawasaki, Akio, et al. "Geometrically asymmetric optical cavity for strong atom-photon coupling." Physical Review A 99.1 (2019).


Zuletzt aktualisiert 2019-14-05 um 08:53