UPCONVERSION PROCESSES IN COUPLED ION SYSTEMS
UPCONVERSION PROCESSES IN COUPLED ION SYSTEMS
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DOI：
10.1016/0022-2313(90)90189-i
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发表时间：
1990-01-01
影响因子：
3.6
通讯作者：
AUZEL, F
中科院分区：
文献类型：
--
作者：
AUZEL, F
在简要介绍了历史之后，回顾了通过能量转移进行上转换的基本过程（Addition de Photons par Transferts d'Energie：APTE 效应）。它们与可能并行发生的其他多光子效应不同，例如协同敏化、协同发光和谐波生成。给出了这些不同上转换过程的相对数量级。实际上，APTE 的上转换通常占主导地位，只有当由于相邻离子的单离子能级之间存在较大的能量不匹配或由于低离子浓度导致缺乏能量扩散而无法发生 APTE 效应时，协同效应才被清楚地观察到。
After a brief history, the basic processes involved in up-conversion by energy transfer (Addition de Photons par Transferts d'Energie: APTE effect) are recalled. They are distinguished from other multiphoton effects which may take place in parallel, such as cooperative sensitization cooperative luminescence and harmonic generation. The relative orders of magnitude of these different up-conversion processes are given. Practically, up-conversion by APTE is usually so dominant that cooperative effects are shown to be clearly observable only when APTE effects cannot take place due to either a large energy mismatch between single ion levels of adjacent ions or due to lack of energy diffusion resulting from low ion concentrations.An overview of recent results showing the positive and negative implications of up-conversion by energy transfer in the detection and generation of photons as well as in visual display systems, is finally given.