Broad-spectrum and long-lifetime emissions of Nd3+ ions in lead fluorosilicate glass.

Broad-spectrum and long-lifetime emissions of Nd3+ ions in lead fluorosilicate glass.
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氟硅酸铅玻璃中 Nd3 离子的广谱和长寿命发射。

DOI:
10.1364/oe.17.010001
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发表时间:
2009-06
期刊:
影响因子:
3.8
通讯作者:
--
中科院分区:
物理与天体物理2区
文献类型:
--
作者:

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采用两步熔融法制备了掺钕氟硅酸铅玻璃。根据吸收光谱,对薄膜进行了Judd-Ofelt理论分析。NPS玻璃的发射谱线宽度为44.2 nm。(4)F(3/2)能级的荧光衰减寿命为586 ± 20微秒,受激发射截面为0.87 × 10 ~(-20)cm ~ 2。在808 nm半导体激光器泵浦下,产生了1062 nm的激光振荡。在阈值为415 mJ时,斜率效率为23.7%。研究表明,微晶玻璃具有较宽的发光带宽和较长的荧光寿命,是一种很好的超短脉冲产生和放大材料。
A novel Nd(3+)-doped lead fluorosilicate glass (NPS glass) is prepared by a two-step melting process. Based on the absorption spectrum a Judd-Ofelt theory analysis is made. The emission line width of NPS glass is 44.2 nm. The fluorescence decay lifetime of the (4)F(3/2) level is 586+/-20 microsec, and the stimulated emission cross-section is 0.87x10(-20)cm(2)at 1056 nm. A laser oscillation is occurred at 1062 nm when pumped by 808 nm Diode Laser. The slope efficiency is 23.7% with a 415 mJ threshold. It is supposed that NPS glass is a good candidate for using in ultra-short pulse generation and amplification by the broad emission bandwidth and long fluorescence lifetime.
DOI: 10.1103/physrevb.53.6186
发表时间: 1996-03
期刊: Physical review. B, Condensed matter
影响因子: --
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M. Saisudha;J. Ramakrishna
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