Work on improving a high precision experiment in helium
POSTER
Abstract
Current work to improve an experimental setup for high precision laser spectroscopy of helium is presented. Included is ongoing work to construct a UHV apparatus for improved signal to noise, among other benefits. Also presented are efforts to design and implement a high brightness electron source using a lanthanum hexaboride cathode. This will provide the electron emission for initial state preparation of the helium atoms. Efforts to design and construct a cost effective laser source suitable for high precision spectroscopy and laser pumping applications are presented. Results with our custom designed Bragg gratings and ytterbium doped fiber in a Distributed Bragg Reflector configuration are discussed.
*Funded in part by an NSF grant.