Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/135052
Title: MOLECULAR SPECTROSCOPY OF ULTRACOLD 6LI4°K MOLECULES
Authors: LAM MUN CHOONG, MARK (LIN WENZHONG, MARK)
Keywords: molecular spectroscopy, ultracold molecules, feshbach molecules
Issue Date: 29-Dec-2016
Citation: LAM MUN CHOONG, MARK (LIN WENZHONG, MARK) (2016-12-29). MOLECULAR SPECTROSCOPY OF ULTRACOLD 6LI4°K MOLECULES. ScholarBank@NUS Repository.
Abstract: This thesis reports on our experimental progress towards investigating anisotropic dipole-dipole interactions in ground state 6Li40K molecules. Evaporative cooling of 87Rb in a triple-species 87Rb-40K-6Li mixture provides sympathetically-cooled 6Li and 40K, that is subsequently magnetically associated into Feshbach molecules which we aim to coherently transfer to the absolute ro-vibrational ground state. The design and implementation of a high voltage electrode system, facilitating investigation of anisoptropic dipole-dipole interactions, is described. The implementation of 6Li D1 sub-Doppler cooling into our experiment is described, and its effectiveness evaluated. Theoretical considerations are presented on factors governing the optimal choice of starting and intermediate states for coherent state transfer, leading to two experimentally-feasible pathways to the absolute ground state being selected. A series of spectroscopic measurements are presented, comprising broad surveys of excited states on the 11Π and 21Σ potentials, followed by high resolution measurements of selected vibrational levels, as well our attempts at two-photon spectroscopy, one of which demonstrates successful addressing of the X1Σ ν=3 level.
URI: http://scholarbank.nus.edu.sg/handle/10635/135052
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
LamMCM.pdf7.95 MBAdobe PDF

OPEN

NoneView/Download
Corrigendum - Mark Lam.pdf63.98 kBAdobe PDF

OPEN

NoneView/Download

Page view(s)

211
checked on Feb 14, 2020

Download(s)

1
checked on Feb 14, 2020

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.