We have realised a 4-beam pyramidal magneto-optical trap ideally suited for
future microfabrication. Three mirrors split and steer a single incoming beam
into a tripod of reflected beams, allowing trapping in the four-beam overlap
volume. We discuss the influence of mirror angle on cooling and trapping,
finding optimum efficiency in a tetrahedral configuration. We demonstrate the
technique using an ex-vacuo mirror system to illustrate the previously
inaccessible supra-plane pyramid MOT configuration. Unlike standard pyramidal
MOTs both the pyramid apex and its mirror angle are non-critical and our MOT
offers improved molasses free from atomic shadows in the laser beams. The MOT
scheme naturally extends to a 2-beam refractive version with high optical
access. For quantum gas experiments, the mirror system could also be used for a
stable 3D tetrahedral optical lattice.
%0 Journal Article
%1 Vangelyn2009
%A Vangeleyn, Matthieu
%A Griffin, Paul F.
%A Riis, Erling
%A Arnold, Aidan S.
%D 2009
%K construction, magneto, mot, optical, pyramidal, tetrahedral, trap
%T Single-laser, one beam, tetrahedral magneto-optical trap
%U http://arxiv.org/abs/0905.2897
%X We have realised a 4-beam pyramidal magneto-optical trap ideally suited for
future microfabrication. Three mirrors split and steer a single incoming beam
into a tripod of reflected beams, allowing trapping in the four-beam overlap
volume. We discuss the influence of mirror angle on cooling and trapping,
finding optimum efficiency in a tetrahedral configuration. We demonstrate the
technique using an ex-vacuo mirror system to illustrate the previously
inaccessible supra-plane pyramid MOT configuration. Unlike standard pyramidal
MOTs both the pyramid apex and its mirror angle are non-critical and our MOT
offers improved molasses free from atomic shadows in the laser beams. The MOT
scheme naturally extends to a 2-beam refractive version with high optical
access. For quantum gas experiments, the mirror system could also be used for a
stable 3D tetrahedral optical lattice.
@article{Vangelyn2009,
abstract = {We have realised a 4-beam pyramidal magneto-optical trap ideally suited for
future microfabrication. Three mirrors split and steer a single incoming beam
into a tripod of reflected beams, allowing trapping in the four-beam overlap
volume. We discuss the influence of mirror angle on cooling and trapping,
finding optimum efficiency in a tetrahedral configuration. We demonstrate the
technique using an ex-vacuo mirror system to illustrate the previously
inaccessible supra-plane pyramid MOT configuration. Unlike standard pyramidal
MOTs both the pyramid apex and its mirror angle are non-critical and our MOT
offers improved molasses free from atomic shadows in the laser beams. The MOT
scheme naturally extends to a 2-beam refractive version with high optical
access. For quantum gas experiments, the mirror system could also be used for a
stable 3D tetrahedral optical lattice.},
added-at = {2009-05-19T18:00:18.000+0200},
author = {Vangeleyn, Matthieu and Griffin, Paul F. and Riis, Erling and Arnold, Aidan S.},
biburl = {https://www.bibsonomy.org/bibtex/2ecae4a818b1af1137cd120229928ff0f/earthfare},
citeulike-article-id = {4544607},
description = {CiteULike: Everyone's library},
eprint = {0905.2897},
interhash = {91008828899c278b600307833754382c},
intrahash = {ecae4a818b1af1137cd120229928ff0f},
keywords = {construction, magneto, mot, optical, pyramidal, tetrahedral, trap},
month = May,
posted-at = {2009-05-19 10:01:05},
priority = {2},
timestamp = {2009-05-19T18:03:27.000+0200},
title = {Single-laser, one beam, tetrahedral magneto-optical trap},
url = {http://arxiv.org/abs/0905.2897},
year = 2009
}