Bulletin of the American Physical Society
2006 37th Meeting of the Division of Atomic, Molecular and Optical Physics
Tuesday–Saturday, May 16–20, 2006; Knoxville, TN
Session T1: Emerging Applications of AMO Physics |
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Chair: Mark Edwards, Georgia Southern University Room: Knoxville Convention Center Lecture Hall |
Friday, May 19, 2006 10:30AM - 11:06AM |
T1.00001: TBD Invited Speaker: |
Friday, May 19, 2006 11:06AM - 11:42AM |
T1.00002: TBD Invited Speaker: |
Friday, May 19, 2006 11:42AM - 12:18PM |
T1.00003: All-optical atomic magnetometry Invited Speaker: The talk will address recent advances in measuring magnetic fields using nonlinear magneto-optical effects in alkali-atom vapors. We will discuss several applications, including measuring magnetic properties of nominally non-magnetic materials, robust detection of magnetic microparticles at ultra- low concentrations, and using atomic magnetometers for remote detection of nuclear magnetic resonance and magnetic-resonance imaging. [Preview Abstract] |
Friday, May 19, 2006 12:18PM - 12:54PM |
T1.00004: Chip-Scale Atomic Devices Invited Speaker: We describe recent efforts to develop millimeter-sized devices based on atomic spectroscopy for highly precise timing and sensing applications. At the heart of these structures are miniature alkali vapor cells, fabricated using techniques common in micro electro mechanical systems (MEMS). These cells allow atoms to be confined along with a buffer gas in volumes of order 1 mm$^{3}$ and allow for optical access to the cell interior. Atoms in these cells are excited using light from modulated vertical cavity surface-emitting lasers and magnetic fields generated by microfabricated current loops. To date physics packages have been developed for atomic clocks with an instability below 4$\times $10$^{-11}$ at an integration time of one second while magnetic field sensors with a similar structure demonstrate a sensitivity near 40 pT/$\surd $Hz. These physics packages have volumes of order 10 mm$^{3}$ -- about the size of a grain of rice -- and require less than 200 mW of electrical power to run. We anticipate that in the future complete systems, including control electronics, will be possible with volumes near 1 cm$^{3}$, and a power requirement near 30 mW. Applications for such units include global positioning system receivers, wireless communication devices, detection of improvised explosive devices and remote monitoring. [Preview Abstract] |
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