Sisyphus cooling in a continuously loaded trap
2013
Article
OS Lab
We demonstrate continuous Sisyphus cooling combined with a continuous loading mechanism used to efficiently slow down and accumulate chromium atoms from a guided beam. While the loading itself is based on a single slowing step, applying a radio frequency field forces the atoms to repeat this step many times resulting in a so-called Sisyphus cooling. This extension allows efficient loading and cooling of atoms from a wide range of initial beam conditions. We study the interplay of the continuous loading and simultaneous Sisyphus cooling in different density regimes. In the case of a low density flux we observe a differential gain in phase-space density of nine orders of magnitude. This makes the presented scheme an ideal tool for reaching collisional densities enabling evaporative cooling—in spite of unfavourable initial conditions.
Author(s): | Valentin Volchkov and Jahn Rührig and Tilman Pfau and Axel Griesmaier |
Journal: | New Journal of Physics |
Volume: | 15 |
Pages: | 093012 |
Year: | 2013 |
Month: | September |
Day: | 10 |
Publisher: | IOP Publishing and Deutsche Physikalische Gesellschaft |
Department(s): | Optics and Sensing Laboratory |
Bibtex Type: | Article (article) |
Paper Type: | Journal |
DOI: | 10.1088/1367-2630/15/9/093012 |
State: | Published |
BibTex @article{sisyph13, title = {Sisyphus cooling in a continuously loaded trap}, author = {Volchkov, Valentin and R{\"u}hrig, Jahn and Pfau, Tilman and Griesmaier, Axel}, journal = { New Journal of Physics}, volume = {15}, pages = {093012}, publisher = { IOP Publishing and Deutsche Physikalische Gesellschaft}, month = sep, year = {2013}, doi = {10.1088/1367-2630/15/9/093012}, month_numeric = {9} } |