Files in this item

FilesDescriptionFormat

application/vnd.openxmlformats-officedocument.presentationml.presentation

application/vnd.openxmlformats-officedocument.presentationml.presentation429390.pptx (10MB)
PresentationMicrosoft PowerPoint 2007

application/pdf

application/pdf1170.pdf (17kB)
AbstractPDF

Description

Title:PROGRESS ON OPTICAL ROTATIONAL COOLING OF SiO+
Author(s):Stollenwerk, Patrick R
Contributor(s):Odom, Brian C.; Lin, Yen-Wei
Subject(s):Cold/Ultracold/Matrices/Droplets
Abstract:Producing ultracold molecules is the first step in precision molecular spectroscopy. Here we present some of the challenges and advantages of SiO+ as well as some of our progress toward meeting those challenges. To demonstrate ground state SiO+, we first load about 100 SiO+ via 2+1 REMPI into an ion trap. Translational motion of SiO+ is then sympathetically cooled by co-trapped Ba+, which is laser cooled. To prepare the population into the ground state, we optically pump the P-branch (rotational cooling transitions) in the B:$Sigma$(v�=0) $leftarrow$ X:$Sigma$(v=0) band with broadband radiation. Because the band is highly diagonal, population can be effectively driven into the rotational ground state before falling into other manifolds. The broadband source, a fs laser, is spectrally filtered using an ultrashort pulse shaping technique to drive only the P-branch. Attention must be paid when aligning the optics to obtain sufficient masking resolution. We have achieved 3 cm$^{-1}$ resolution, which is sufficient to modify a broadband source for rotationally cooling SiO+.
Issue Date:25-Jun-15
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:ACS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/79259
Date Available in IDEALS:2016-01-05


This item appears in the following Collection(s)

Item Statistics