1 520 nm激光激发的Er(0.5):FOG材料的上转换发光与立体显示研究

摘要
参考文献
相关文章 (15)

全文: PDF (583 KB)
输出: BibTeX | EndNote (RIS)

摘要：立体显示为现代重要的科学前沿。上转换三维立体显示为一种新颖的自体视三维立体显示，在1996年被评为十大科技创新成就之一，现正向应用快速发展。研究了1 520 nm半导体激光激发的Er(0.5):FOG材料的上转换发光，发现了(407.43, 411.20 nm), (522.51^m, 528.57 nm), (540.53^m, 543.70，549.00 nm), (654.75^m, 665.50 nm), 和802.10^m nm的上转换发光(m代表主峰)，依次为(²G⁴F²H)_9/2→⁴I_15/2, ⁴H_11/2→⁴I_15/2, ⁴S_3/2→⁴I_15/2, ⁴F_9/2→⁴I_15/2和⁴I_9/2→⁴I_15/2的跃迁。值得注意的是上转换发光强度随激光功率变化的双对数曲线的斜率有各种各样的值。通过详细研究发现(407.43, 411.20 nm)的(²G⁴F²H)_9/2→⁴I_15/2上转换发光是四光子荧光;(522.51^m, 528.57 nm)的²H_11/2→⁴I_15/2，(540.53^m, 543.70，549.00 nm)的⁴S_3/2→⁴I_15/2和(654.75^m, 665.50 nm)的⁴F_9/2→⁴I_15/2的上转换发光为三光子荧光;而802.10^m nm的⁴I_9/2→⁴I_15/2上转换发光为双光子荧光。很明显从基态⁴I_15/2到第一激发态的吸收很大，因为它的振子强度f和与1 520 nm激光的匹配都很好，随后的起源于第一激发态的能量传递和相继吸收都很易于发生，这导致了1 520 nm激光激发下的Er(0.5): FOG材料的丰富和有意义的上转换发光现象。

关键词：上转换发光;Er³⁺离子;立体三维显示;多步激发;氟氧化物玻璃材料

Abstract：The volumetric display technology is one of the important science frontiers of modern society. Multi-photon up-conversion volumetric 3-D display, attractive especially in its self-spatial vision, has the advantages of total-solidification, high reliability and speedy operation so that it has a broad range of applications. The up-conversion luminescence of oxyfluoride glass material Er(0.5): FOG, when excited by 1 520 nm semiconductor laser, was studied. The common-fluorescence spectra were measured also, in order to know up-conversion sufficiently. It was found that there are several up-conversion luminescence lines (407.43, 411.20 nm), (522.51^m, 528.57 nm), (540.53^m, 543.70, 549.00 nm), (654.75^m, 665.50 nm) and 802.10^m nm, which can be recognized as the fluorescence-transitions of (²G⁴F²H)_9/2→⁴I_15/2, ⁴H_11/2→⁴I_15/2, ⁴S_3/2→⁴I_15/2, ⁴F_9/2→⁴I_15/2 and ⁴I_9/2→⁴I_15/2 respectively. It is interesting that the slopes of log F-log P curves, the double logarithmic variation of up-conversion luminescence intensity F with the laser power P, are various for these observed up-conversion luminescences, which are valuable for volumetric display. The comprehensive analysis found that the (²G⁴F²H)_9/2→⁴I_15/2 up-conversion luminescence is a four photon up-conversion luminescence, while {²H_11/2→⁴I_15/2, ⁴S_3/2→⁴I_15/2 and ⁴F_9/2→⁴I_15/2} up-conversion luminescence is three-photon up-conversion luminescences, and ⁴I_9/2→⁴I_15/2 up-conversion luminescence is a two-photon up-conversion luminescence. It was found also that the absorption from the ground-state ⁴I_15/2 level to first excited level is very large, resulting in the fact that the sequential energy transfer and step-by-step absorption up-conversion are readily to happen.

Key words：Up-conversion luminescence;Er³⁺ ion;Volumetric display;Multi-step excitation;Oxyfluoride glass material

收稿日期: 2003-01-08 修订日期: 2003-03-28

中图分类号:

O482.3

通讯作者: 陈晓波

引用本文:

陈晓波¹，宋增福²，N.Sawanobori³ . 1 520 nm激光激发的Er(0.5):FOG材料的上转换发光与立体显示研究 [J]. 光谱学与光谱分析, 2005, 25(01): 13-18.
CHEN Xiao-bo¹, SONG Zeng-fu², N. Sawanobori³ . Up-Conversion Luminescence and Volumetric Display Research on Er(0.5): FOG Material Excited by 1 520 nm Laser . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(01): 13-18.

链接本文:

https://www.gpxygpfx.com/CN/Y2005/V25/I01/13