Abstract
An intrinsic optical bistability can find potential applications in optical logic elements and switches for optical computing, telecommunication, etc. The effect can be predicted in many different systems with various physical mechanisms of nonlinearity. The bistability derived as a consequence of modification of the optical Bloch equations after introducing the local field correction terms,1,2 was first experimentally observed in Yb3+:Cs3 Y2Br9.3 We theoretically predict and experimentally demonstrate an intrinsic bistability in luminescence and transmission of Cr doped LiSrGaF6 (LiSGaF) and LiSrAlF6 (LiSAF) crystals, in which the luminescence quantum yield has a strongly nonlinear dependence on temperature T.
© 2001 Optical Society of America
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