In Point Source Atom Interferometry (PSI), a sequence of Raman laser pulses interact with an expanding ball of cold atoms, to split, redirect and recombine the matter-wave. It exploits the correlation between the position and velocity of the atoms to produce a spatially imprinted interference pattern across the atomic cloud. Since the phase of atoms contains information about inertial effects on the system, the interferometer can be used to detect angular rates. PSI can therefore be used as a sensor that can take measurements for inertial navigation applications. We plan to develop such a rotation sensor and test out optimal control pulses to improve the performance of the interferometer, tackling issues involving scale factor instability and low contrast. As a preliminary step, we characterised the response of the I&Q modulator needed to control the phase of the optimal pulses, thus reducing the errors caused by potential non-linearities.
|Presenter name||Joel Abraham|
|How will you attend ICAP-27?||I am planning on in-person attendance|