| Title |
Realization of a deeply subwavelength adiabatic optical lattice / |
| Authors |
Anderson, R. P ; Trypogeorgos, D ; Valdés-Curiel, A ; Liang, Q.-Y ; Tao, J ; Zhao, M ; Andrijauskas, Tomas ; Juzeliūnas, Gediminas ; Spielman, I. B |
| DOI |
10.1103/PhysRevResearch.2.013149 |
| Full Text |
|
| Is Part of |
Physical review research.. College Park, MD : American Physical Society. 2020, vol. 2, iss. 1, art. no. 013149, p. 1-7.. ISSN 2643-1564. eISSN 2643-1564 |
| Keywords [eng] |
subwavelength optical lattice ; ultracold atoms ; Raman coupling |
| Abstract [eng] |
We propose and describe our realization of a deeply subwavelength optical lattice for ultracold neutral atoms using N resonantly Raman-coupled internal degrees of freedom. Although counterpropagating lasers with wavelength λ provided two-photon Raman coupling, the resultant lattice period was λ/2N, an N-fold reduction as compared to the conventional λ/2 lattice period. We experimentally demonstrated this lattice built from the three F = 1 Zeeman states of a 87 Rb Bose-Einstein condensate, and generated a lattice with a λ/6 = 132 nm period from λ = 790 nm lasers. Lastly, we show that adding an additional rf-coupling field converts this lattice into a superlattice with N wells uniformly spaced within the original λ/2 unit cell. |
| Published |
College Park, MD : American Physical Society |
| Type |
Journal article |
| Language |
English |
| Publication date |
2020 |
| CC license |
|
