15 Aug 2017 by amj

We saw our first signal of trapped strontium ions on August 15th. The trap lifetime was limited by background gas collisions because the plan was to bake after loading our first ions. Post bake we were able to laser cool to generate crystals of trapped ions. The image shows a chain of 17 trapped strontium ions. We are working on our electronics and control to compensate for stray electric fields to reduce excess micromotion so that we can pursue our science goals.

Everyone in the lab contributed to this effort, including significant contributions from the lab's undergrads: Alexander James setup the 405 nm photoionization laser as well as other optics. Sam Dutt made and characterize the neutral strontium oven and Jack Roten meticulously cleaned our vacuum parts.

10 Apr 2017 by amj

UCSB undergraduate Jared Pagett joins the group.

16 Mar 2017 by amj

Ania Jayich and I created the first Math Kangaroo center in Santa Barbara, CA in late 2016. Math Kangaroo is an international math competition that takes place annually on the third Thursday in March. Leading up to this year's exam we hosted 5 practice sessions on Saturday mornings for the eighteen 1st through 5th graders that registered for our Math Kangaroo center. Twelve students from our center took the 2017 Math Kangaroo exam, along with roughly 5 million students worldwide. See me with students on test today with our new Math Kangaroo shirts. We are looking forward to growing the program and hosting more practice sessions soon for Math Kangaroo 2018.

We are excited to have Anna Wang join our research efforts. Anna graduated from UCLA where she developed expertise in AMO physics while working in Wes Campbell's group. After graduation she worked at HRL laboratories on quantum dots for applications in quantum computing.

Cooling on a two-photon transition with an optical frequency comb is published. In Wes Campbell's Lab at UCLA we demonstrated that by driving a two-photon transition the entire power of an optical frequency comb can be utilized to laser cool and trap atoms. We developed the technique (using rubidium) for cooling atoms with deeply bound valence electrons such as hydrogen and carbon for precision measurement and quantum chemistry. Please see our paper

Press

John Barry, the master of laser cooling molecules, wrote a Physics Viewpoint article covering our research.

UCLA newsroom

Phys.org article

5 Oct 2016 by amj

UCSB sophmores Sam "Bhaskar" Dutt and William Ortez join the group.

Undergraduate

Undergraduate

3 Oct 2016 by amj

Alexander James joins the group.

1 Oct 2016 by amj

Our great temporary lab space was designed and used by David Awschalom. The temperature is well controlled with multiple doors between our future optics and the ocean air.