Current status of an atomic gravimeter developing at KRISS

Author

Lee, Sang-Bum ; Park, Sang Eon ; Yu, Dai-Hyuk ; Park, Chang Yong ; Lee, Won-Kyu ; Kwon, Taeg Yong

Author_Institution

Center for Time & Freq., Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea

fYear

2012

fDate

1-6 July 2012

Firstpage

614

Lastpage

615

Abstract

We present a current status of an atomic gravimeter, which is based on Mach-Zehnder-type atom interferometer using stimulated Raman transition, developing at KRISS. Cooling beams with (111) geometric configuration was used for magnetic optical trap (MOT). Rubidium⁸⁷ (Rb⁸⁷) atoms are trapped and cooled in MOT. Temperature of the trapped atoms was measured to be about 1.7μK by time of flight measurement after a deep cooling.

Keywords

atom optics; cooling; gravimeters; magnetic traps; particle interferometry; radiation pressure; rubidium; temperature measurement; KRISS; MOT; Mach-Zehnder-type atom interferometer; Raman transition simulation; Rb; atomic gravimeter; deep cooling beam; geometric configuration; magnetic optical trap; time of flight measurement; trapped atom temperature measurement; Atomic beams; Atomic measurements; Gravity measurement; Laser beams; Measurement by laser beam; Optical fiber amplifiers; Semiconductor lasers; Magnetic optical trap; Rubidium; atomic gravimeter; atomic interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6251079

Filename

6251079