Papers

Peer-reviewed
Apr, 2014

Production of Ba Metastable State via Superradiance

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
  • Ohae Chiaki
  • Fukumi Atsushi
  • Kuma Susumu
  • Miyamoto Yuki
  • Nakajima Kyo
  • Nakano Itsuo
  • Nanjo Hajime
  • Sasao Noboru
  • Uetake Satoshi
  • Wakabayashi Tomonari
  • Yoshimi Akihiro
  • Yoshimura Koji
  • Yoshimura Motohiko
  • Display all

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
DOI
https://doi.org/10.7566/JPSJ.83.044301
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000333179400011&DestApp=WOS_CPL
ID information
  • DOI : 10.7566/JPSJ.83.044301
  • ISSN : 0031-9015
  • Web of Science ID : WOS:000333179400011

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