Techniques in laser cooling and trapping of atomic ytterbium

Thomas H. Loftus

Xinye Xu, Wenli Wang, Qinghong Zhou +8 more

Tom Loftus

권민식

Jonathan A. Cox, Marko Cetina, Franz X. Käertner +1 more

We describe the design and performance of an ultraviolet diode laser system for laser cooling trapped ytterbium ions without frequency doubling. The performance is similar to resonantly doubled laser systems, but with greater efficiency, reduced size, expense and fragility. The system achieved laser cooling of ytterbium ions in a linear Paul trap to less than 270 mK. No shorter wavelength laser has previously been used for laser cooling

Sean Mulholland

Portable microwave clocks that incorporate laser cooling promise to bring significantly improved performance compared to commercially available microwave clocks that are based on thermal atoms. This thesis reports on the development of a portable, laser-cooled ytterbium-171 trapped-ion microwave frequency standard from design to testing.