Near-infrared wavelength-dependent nonlinear transmittance tailoring in glass ceramics containing Er3+:LaF3 nanocrystals
作者： Z. Chen , L. Sun , H. Zhang , G. P. Dong , M. Gecevicius
DOI: 10.1039/C6TC01876A
关键词:
摘要: Nonlinear optical (NLO) effects originating from materials doped with rare-earth ions possess colossal potential for application in all-optical switches. However, among previous studies, Er3+ ion-doped glass ceramics (GCs) remarkable NLO features have been investigated respect to modulation applications by tailoring their nonlinear transmittance upon excitation at various near-infrared (NIR) wavelengths, which might prove be a simple way of achieving “on–off” future Here, we present the first observation tailorable germanate oxyfluoride GCs containing Er3+:LaF3 nanocrystals, manipulated 808, 980, and 1550 nm, is consistent results theoretical calculations simulations. Furthermore, conduct experimental investigation analysis related energy level transitions dynamical evolution, indicating that these intriguing can attributed differentiation between excited state absorption accompanied up-conversion luminescence stimulated emission processes during discrepant NIR wavelengths. Importantly, bidirectional switching toggle effect has successfully demonstrated selectively single Er3+-doped GCs. This behavior GCs, dependent on different provide versatile strategy development next-generation
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