RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Low phase noise Raman beams for atomic interferometry

August 18, 2017 - 10:00am
Eduardo Gómez
Instituto de Física, Universidad Autónoma de San Luis Potosí

Atomic gravimetry requires two phase locked lasers with the correct polarization. It is possible to generate the two beams using a fiber phase modulator. There is a destructive interference that appears with this method from the two Raman pairs produced. We show that a long calcite crystal can be used to turn this into constructive interference. In this scheme it is possible to excite both counter and co propagating Raman transitions. I will also show a way to combine two different hyperfine transitions to reduce the magnetic sensitivity in atomic gravimetry.

PSC 2136

Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to