[Physstaff] Seminar by Prof. Qiang Lin, Zhejiang University of Technology

[Paul Griffin]

Dear colleagues,

I’ve attached details of talk that might be of general interest. On Thursday of this week Prof. Qiang Lin, Dean of College of Science at Zhejiang University of Technology in China, will give a seminar on his group’s work in precision metrology with atomic physics. Prof Lin will be hosted by Zhengming Shien, who can be contact for further details.

regards
PFG

Speaker: Prof Qiang Lin, Institute of Optics, Zhejiang University, China
Title: The Investigation of μ-Gal-Level Cold Atom Gravimeter for Field Applications
Date: 28th May 2015
Time: 11:00am
Location: JA3.17
Abstract: Over the last decade, the novel inertial sensors based on atom interferometer have a rapid development, such as atomic gravimeter, atomic gyroscope, and atomic gravity gradiometer. They have attracted many attentions due to their high sensitivity, high repetition rate and potentially high accuracy. They could be widely used in both fundamental sciences and practical applications. The initial atom gravimeters could only operate in the laboratories due to their bulk volume. Lots of efforts have been made to build compact and transportable atom gravimeter. Such mobile devices are applicable for a wide range, such as geophysics, resource exploration, seismic studies, gravimeter survey, and inertial navigation and so on. In the future, they may be installed in the mobile platforms.

In recent years, we have developed a high precision atom gravimeter. A sensitivity of 1.1×10-8 g at 200s has been reached in our experiment. The tidal phenomenon is observed by monitoring the local gravity continuously over 128 hours. Moreover, a whole seismic wave occurred in Pakistan was recorded in detail with our atom gravimeter and the results are very consistent with that recorded by a traditional seismic detector. Finally, the absolute gravity value at the location of our laboratory has been measured. The current performance of our gravimeter meets the most of the field applications.



************************************************
Dr. Paul F. Griffin
Lecturer & Chancellor’s Fellow
Department of Physics
University of Strathclyde
Glasgow G4 0NG
Phone : 0141-548-5813
email   : paul.griffin at strath.ac.uk<mailto:paul.griffin at strath.ac.uk>

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