Apr, 2014
Production of Ba Metastable State via Superradiance
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
- Volume
- 83
- Number
- 4
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.7566/JPSJ.83.044301
- Publisher
- PHYSICAL SOC JAPAN
We describe in this paper a fast and efficient method of producing a high density of barium (Ba) atoms in the D-1(2) metastable state, which is a candidate initial state for a new class of cooperative and coherent optical process called paired superradiance (PSR). In the experiment, Ba atoms are excited first by laser light to the P-1(1) state and then brought to the desired state D-1(2) via radiative transition in the superradiance (SR) mode. It is found that a production efficiency (from S-1(0) to D-1(2)) of more than similar to 30% is achieved within a time interval of a few nanoseconds for a Ba density n > 10(19) m(-3). Several key features of SR important for future PSR experiments are also studied.
- Link information
- ID information
-
- DOI : 10.7566/JPSJ.83.044301
- ISSN : 0031-9015
- Web of Science ID : WOS:000333179400011