20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Session

Atomic Physics, Quantum Physics, Molecular and Chemical Physics

21 May 2015, 08:00

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Mr Nuttanan Tanasanchai (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand), Waranont Anukool (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 08:15
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We have trapped a laser-cooled single rubidium-85 atom in an optical dipole trap using sub-Poissonian loading scheme. The trap beam with 4mK depth was produced with 830nm focused laser beam. Our optical circuits based on the two-beam trap and homemade equipments are described. The photograph of a single rubidium-85 atom taken for the first time in Thailand is presented.
Rattakorn Kaewuam (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand), Waranont Anukool (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 08:30
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We use the density matrix formulation to study the dynamic of atom-photon interaction of Rb-85 atoms under the cooling and repumping laser fields in a magneto-optical trap (MOT). The spontaneous emission process is taken into account using the fully-quantized theory. The obtained master equations are numerically solved for the four-level system including two levels of $5^2S_{1/2}F=2,3$ and two...
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