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本文中报道了磷酸盐玻璃中Nd3+,Yb3+的时间分辨谱和激发能量的转移。通过实验确定了在不同温度下的转移速率。证实了Nd3+→Yb3+的能量转移机构为从4F3/2(Nd3+)到2F5/2(Yb3+)并同时产生单声子发射的过程;而从Yb3+到Nd3+This paper reports the spectra and the excited energy transfer in phosphate glass doped with Nd3+ and Yb3+. The transfer rates are determined experimentally, at different tempcralures. We confirme that the mechanism of energy transfer is a process in which the energy is transferred from 4F3/2(Nd3+) to 2F5/2(Yb3+) and at the same time a single phonon is emitted. The energy back transfer process from Yb3+ to Nd3+ may occur in two possible ways, one is the process 2F5/2(Yb3+)→4F3/2(Nd3+) which is accompanied by the absorption of a single phonon, and the other is the process 2F5/2(Yb3+)→4I15/2(Nd3+), being accompanied by emission of 4 phonons. Therefore Yb3+→Nd3+ transfer rate depends strongly upon the temperature. At room temperature, the transfer time from Nd3+ to Yb3+ and from Yb to Nd are 197μs and 13ms respectively. The efficiency of energy transfer is 47% for Nd3+→Yb3+ and 8% for Yb3+→ Nd3+.
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物理学报. 1984, 33(4): 515-522.
doi: 10.7498/aps.33.515.
磷酸盐玻璃中Yb3+和Nd3+之间的声子参助能量转移
- 收稿日期: 1983-04-20
- 刊出日期: 1984-02-05
摘要: 本文中报道了磷酸盐玻璃中Nd3+,Yb3+的时间分辨谱和激发能量的转移。通过实验确定了在不同温度下的转移速率。证实了Nd3+→Yb3+的能量转移机构为从4F3/2(Nd3+)到2F5/2(Yb3+)并同时产生单声子发射的过程;而从Yb3+到Nd3+
English Abstract
PHONON-ASSISTED TRANSFER BETWEEN Yb3+ AND Nd3+ IN PHOSPHATE GLASS
- Received Date:
20 April 1983
- Published Online:
05 February 1984
Abstract: This paper reports the spectra and the excited energy transfer in phosphate glass doped with Nd3+ and Yb3+. The transfer rates are determined experimentally, at different tempcralures. We confirme that the mechanism of energy transfer is a process in which the energy is transferred from 4F3/2(Nd3+) to 2F5/2(Yb3+) and at the same time a single phonon is emitted. The energy back transfer process from Yb3+ to Nd3+ may occur in two possible ways, one is the process 2F5/2(Yb3+)→4F3/2(Nd3+) which is accompanied by the absorption of a single phonon, and the other is the process 2F5/2(Yb3+)→4I15/2(Nd3+), being accompanied by emission of 4 phonons. Therefore Yb3+→Nd3+ transfer rate depends strongly upon the temperature. At room temperature, the transfer time from Nd3+ to Yb3+ and from Yb to Nd are 197μs and 13ms respectively. The efficiency of energy transfer is 47% for Nd3+→Yb3+ and 8% for Yb3+→ Nd3+.
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