Up-conversion luminescence research of Er(0.5):ZBLAN material for volumetric display application when excited by 1520 nm laser

doi:10.1088/1009-1963/12/12/020

Abstract

Abstract The up-conversion luminescence of the ZBLAN fluoride glass Er(0.5):ZBLAN, when excited by a 1520 nm semiconductor laser, is studied in this paper. The absorption and common-fluorescence spectra are also measured in order to understand the up-conversion clearly. It is found that there are seven strong up-conversion luminescence lines (406.97

^{m}

, 410.42 nm), (521.97

^{m}

, 527.56 nm), (542.38

^{m}

, 549.27 nm), (654.27

^{m}

, 665.70 nm), 801.57

^{m}

nm, 819.46 nm, and 840.00 nm, which can be recognized as the fluorescence transitions of (

^{2}

G

^{4}

F

^{2}

H)

_{9 / 2}

→

^{4}

I

_{15 / 2}

,

^{2}

H

_{11 / 2}

→

^{4}

I

_{15 / 2}

,

^{4}

S

_{3 / 2}

→

^{4}

I

_{15 / 2}

,

^{4}

F

_{9 / 2}

→

^{4}

I

_{15 / 2}

,

^{4}

I

_{9 / 2}

→

^{4}

I

_{15 / 2}

, (

^{2}

G

^{4}

F

^{2}

H)

_{9 / 2}

→

^{4}

I

_{9 / 2}

, and

^{4}

S

_{3 / 2}

→

^{4}

I

_{13 / 2}

respectively. Meanwhile, the small up-conversion fluorescence lines 379.20 nm, 453.10 nm and 490.60 nm are the transitions of

^{4}

G

_{11 / 2}

→

^{4}

I

_{15 / 2}

,

^{4}

F

_{5 / 2}

→

^{4}

I

_{15 / 2}

and

^{4}

F

_{7 / 2}

→

^{4}

I

_{15 / 2}

respectively. It is interesting that the slopes of log F－logP curves, the double-logarithmic variation of up-conversion luminescence intensity F with laser power P, are different from each other for these observed up-conversion luminescence, this being valuable for the volumetric display. Comprehensive discussions find that the

^{4}

G

_{11 / 2}

→

^{4}

I

_{15 / 2}

, (

^{2}

G

^{4}

F

^{2}

H)

_{9 / 2}

→

^{4}

I

_{15 / 2}

, (

^{2}

H

_{11 / 2}

→

^{4}

I

_{15 / 2}

,

^{4}

S

_{3 / 2}

→

^{4}

I

_{15 / 2}

,

^{4}

F

_{9 / 2}

→

^{4}

I

_{15 / 2}

), and

^{4}

I

_{9 / 2}

→

^{4}

I

_{15 / 2}

up-conversion luminescences are five-photon, four-photon, three-photon, and two-photon up-conversion luminescences respectively. It is found also that the absorption from ground-state

^{4}

I

_{15 / 2}

level to

^{4}

I

_{13 / 2}

level is very large, which is beneficial to the sequential energy transfer up-conversion to occur.

Keywords: up-conversion luminescence Er(0.5):ZBLAN material volumetric display

Received: 15 January 2003
Revised: 20 June 2003
Accepted manuscript online:

PACS:	78.55.Hx	(Other solid inorganic materials)
	42.60.Jf	(Beam characteristics: profile, intensity, and power; spatial pattern formation)
	42.70.-a	(Optical materials)
	42.55.Px	(Semiconductor lasers; laser diodes)

Fund: Project supported by the National Natural Science Foundation of China (Grant No 10174008).

Cite this article:

Chen Xiao-Bo (陈晓波), Zhang Fu-Chu (张福初), Chen Luan (陈鸾) Up-conversion luminescence research of Er(0.5):ZBLAN material for volumetric display application when excited by 1520 nm laser 2003 Chinese Physics 12 1451

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Up-conversion luminescence research of Er(0.5):ZBLAN material for volumetric display application when excited by 1520 nm laser

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