When:
Tuesday, October 13, 2015
1:00 PM - 2:00 PM CT
Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it
Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students
Contact:
Leah Handel
(847) 491-3645
Group: AMO: The Atomic, Molecular, and Optical Physics Seminar
Category: Lectures & Meetings
Title: Synchronous Spin Exchange Optical Pumping
Speaker: Prof. Thad Walker, University of Wisconsin-Madison
Abstract: Hyperpolarized Xe gas is produced by spin-exchange collisions with optically spin-polarized Rb atoms. The Rb atoms form an embedded ultra sensitive magnetometer for detecting the Xe NMR, with a 500x quantum enhancement of the Xe NMR signals. Such a system holds promise for sub-nHz scale frequency resolution, were it not for a large NMR frequency shift due to the polarized Rb atoms. To mitigate this, we have demonstrated new concepts for NMR without DC bias fields, RF drive fields, or pickup coils.