Site-Selective, Intrinsically Bistable Luminescence of Yb31 Ion Pairs in CsCdBr3

نویسندگان

  • Markus P. Hehlen
  • Amos Kuditcher
  • Stephen C. Rand
  • Stefan R. Lüthi
چکیده

Stefan R. Lüthi Department of Chemistry and Biochemistry, The University of Bern, Freiestrasse 3, 3012 Bern, Switzerland (Received 2 December 1998) We report the first observation of intrinsic optical bistability in CsCdBr3:1% Yb31 and show, using site-selective spectroscopy, that only the asymmetric, strongly coupled Yb31 ion-pair minority site gives rise to hysteresis of near-infrared and cooperative up-conversion luminescence as a function of incident laser intensity below 15 K. [S0031-9007(99)08880-8]

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تاریخ انتشار 1999