Journal
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
Volume 11, Issue 10, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1464-4258/11/10/105203
Keywords
optical bistability; Tm3+-doped materials; photon avalanche; rate equation
Categories
Funding
- National Natural Science Foundation of China [10804022, 60878016]
- Higher Education of China [20070217014]
- Natural Science Foundation of Heilongjiang Province, China [A200801]
- Science and Technology Innovation Talents of Harbin City, China [2009RFQXG054, 2008RFQXG026]
Ask authors/readers for more resources
This paper presents theoretical investigations on the dynamics of intrinsic optical bistability (IOB) in Tm3+/Yb3+ codoped systems with an upconversion avalanche mechanism. Numerical simulations based on the rate equation model demonstrate distinct IOB hysteresis and critical slowing dynamics around the avalanche thresholds. Moreover, the unusual IOB characteristics are well interpreted by developing a simplified analytic model which gives the formulations of two critical thresholds and the necessary condition for IOB to occur. The simplified model shows that such IOB phenomena may occur only if the total quantum yields of the dipole-dipole energy transfer processes are much higher than that of the inherent decay losses involved in an upconversion avalanche. The analytic model developed in the paper may be useful for the prediction of new rare-earth-doped materials giving rise to IOB.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available