scholarly journals 2.0 μm Ultra Broadband Emission from Tm3+/Ho3+ Co-Doped Gallium Tellurite Glasses for Broadband Light Sources and Tunable Fiber Lasers

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 190
Author(s):  
Jian Yuan ◽  
Weichao Wang ◽  
Yichen Ye ◽  
Tingting Deng ◽  
Yizhao Huang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Fiber Lasers ◽  
Emission Cross Section ◽  
Emission Spectra ◽  
Gain Coefficient ◽  
Light Sources ◽  
Tellurite Glasses ◽  
Broadband Emission ◽  
Forward Energy ◽  
Co Doped

A flat 2.0 μm ultra broadband emission with a full width at half maximum (FWHM) of 329 nm is achieved in 1 mol.% Tm2O3 and 0.05 mol.% Ho2O3 co-doped gallium tellurite glasses upon the excitation of an 808 nm laser diode. The influence of Tm3+ and Ho3+ contents on 2.0 μm spectroscopic properties of gallium tellurite glasses is minutely investigated by absorption spectra, emission spectra, and lifetime measurement. In addition, emission cross section and gain coefficient of Ho3+ ions at 2.0 μm are calculated, and the maximum values reach 8.2 × 10−21 cm2 and 1.54 cm−1, respectively. Moreover, forward and backward energy transfer probability between Tm3+ and Ho3+ ions are qualitatively evaluated by the extended spectral overlap method. Large ratio of the forward energy transfer from Tm3+ to Ho3+ to the backward one (19.7) and high forward energy transfer coefficient (6.22 × 1039 cm6/s) are responsible for effective 2.0 μm emission from Ho3+ ions. These results manifest that Tm3+/Ho3+ co-doped gallium tellurite glass is suitable for potential applications of broadband light sources and tunable fiber lasers operating in eye-safe 2.0 µm spectral region.

Expanding broadband emission in the near-IR via energy transfer between Er3+–Tm3+ co-doped tellurite-glasses

2014 ◽  
Vol 145 ◽  
pp. 787-792 ◽  
Author(s):  
V.A.G. Rivera ◽  
Mohammed El-Amraoui ◽  
Y. Ledemi ◽  
Y. Messaddeq ◽  
E. Marega
Keyword(s):  
Energy Transfer ◽  
Tellurite Glasses ◽  
Broadband Emission ◽  
Near Ir ◽  
Co Doped

Mid-Infrared Luminescence and Energy Transfer Mechanism of Tm3+/Ho3+Co-Doped Tellurite Glasses

2012 ◽  
Vol 39 (10) ◽  
pp. 1006002 ◽  
Author(s):  
徐星辰 Xu Xingchen ◽  
周亚训 Zhou Yaxun ◽  
戴世勋 Dai Shixun ◽  
王训四 Wang Xunsi ◽  
郑世超 Zheng Shichao ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Tellurite Glasses ◽  
Mid Infrared ◽  
Infrared Luminescence ◽  
Co Doped

Tunable dual emission of Ca3Al4ZnO10:Bi3+,Mn4+via energy transfer for indoor plant growth lighting

2018 ◽  
Vol 6 (33) ◽  
pp. 8914-8922 ◽  
Author(s):  
Zhi Zhou ◽  
Yuan Zhong ◽  
Mao Xia ◽  
Nan Zhou ◽  
Bingfu Lei ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Plant Growth ◽  
Absorption Spectra ◽  
Emission Spectra ◽  
Plant Pigments ◽  
Dual Emission ◽  
Co Doped

The emission spectra of Bi3+ and Mn4+ co-doped Ca3Al4ZnO10 phosphors match well with the absorption spectra of plant pigments for indoor plant growth lighting.

Time dependence and energy-transfer mechanisms in Tm3+, Ho3+ and Tm3+–Ho3+ co-doped alkali niobium tellurite glasses sensitized by Yb3+

2001 ◽  
Vol 284 (1-3) ◽  
pp. 217-222 ◽  
Author(s):  
L.C. Courrol ◽  
L.V.G. Tarelho ◽  
L. Gomes ◽  
N.D. Vieira ◽  
F.C. Cassanjes ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Time Dependence ◽  
Tellurite Glasses ◽  
Transfer Mechanisms ◽  
Co Doped

Energy transfer and upconversion luminescence in Tm3+/Yb3+ co-doped lanthanum–zinc–lead–tellurite glasses

2008 ◽  
Vol 128 (1) ◽  
pp. 135-141 ◽  
Author(s):  
Qiuhua Nie ◽  
Xujie Li ◽  
Shixun Dai ◽  
Tiefeng Xu ◽  
Zhe Jin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Upconversion Luminescence ◽  
Tellurite Glasses ◽  
Co Doped

NIR broadband luminescence and energy transfer in Er3+–Tm3+-co-doped tellurite glasses

2009 ◽  
Vol 481 (1-2) ◽  
pp. 881-884 ◽  
Author(s):  
Dacheng Zhou ◽  
Zhiguo Song ◽  
Guangwei Chi ◽  
Jianbei Qiu
Keyword(s):  
Energy Transfer ◽  
Tellurite Glasses ◽  
Co Doped

Downconversion for Solar Cells in Sr3Gd(PO4)3:Tb, Yb Phosphors

2012 ◽  
Vol 502 ◽  
pp. 136-139 ◽  
Author(s):  
Jia Yue Sun ◽  
Yi Ning Sun ◽  
Ji Cheng Zhu ◽  
Jun Hui Zeng ◽  
Hai Yan Du
Keyword(s):  
Energy Transfer ◽  
Solar Cell ◽  
Near Infrared ◽  
Emission Spectra ◽  
Fluorescence Decay ◽  
Quantum Cutting ◽  
Silicon Based ◽  
Visible Photon ◽  
Co Doped ◽  
Cooperative Energy

An efficient near-infrared (NIR) quantum cutting (QC) Tb3+ and Yb3+ co-doped phosphor Sr3Gd(PO4)3 has been synthesized by conventional high temperature solid technique. Upon excitation of Tb3+ with a visible photon at 485 nm, two NIR photons could be emitted by Yb3+ through cooperative energy transfer (CTE) from Tb3+ to two Yb3+ ions. Excitation and emission spectra as well as fluorescence decay measurements have been carried out to examine the occurrence of cooperative energy transfer (CET ) from Tb3+ to Yb3+ ions. The result indicates Tb3+ and Yb3+ co-doped Sr3Gd(PO4)3 is potentially used as down-converter layer in silicon-based solar cell.

Spectroscopic Properties and Energy Transfer of Er3+-doped and Er3+/Yb3+Co-doped Tellurite Glasses

2011 ◽  
Vol 32 (12) ◽  
pp. 1221-1226
Author(s):  
姜慧鹏 JIANG Hui-peng ◽  
孙江亭 SUN Jiang-ting ◽  
黄慧敏 HUANG Hui-min ◽  
郑双雁 ZHENG Shuang-yan ◽  
侯文远 HOU Wen-yuan
Keyword(s):  
Energy Transfer ◽  
Spectroscopic Properties ◽  
Tellurite Glasses ◽  
Co Doped

scholarly journals Effect of BaF2 Variation on Spectroscopic Properties of Tm3+ Doped Gallium Tellurite Glasses for Efficient 2.0 μm Laser

2021 ◽  
Vol 8 ◽  
Author(s):  
Jian Yuan ◽  
Weichao Wang ◽  
Yichen Ye ◽  
Tingting Deng ◽  
Deqian Ou ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Tellurite Glass ◽  
Emission Cross Section ◽  
Spectroscopic Properties ◽  
Gain Coefficient ◽  
Relative Energy ◽  
Energy Transfer Mechanism ◽  
Tellurite Glasses ◽  
Laser Development ◽  
The One

The effects of substitution of BaF2 for BaO on physical properties and 1. 8 μm emission have been systematically investigated to improve spectroscopic properties in Tm3+ doped gallium tellurite glasses for efficient 2.0 μm fiber laser. It is found that refractive index and density gradually decrease with increasing BaF2 content from 0 to 9 mol.%, due to the generation of more non-bridging oxygens. Furthermore, OH− absorption coefficient (αOH) reduces monotonically from 3.4 to 2.2 cm−1 and thus emission intensity near 1.8 μm in gallium tellurite glass with 9 mol.% BaF2 is 1.6 times as large as that without BaF2 while the lifetime becomes 1.7 times as long as the one without BaF2. Relative energy transfer mechanism is proposed. The maximum emission cross section and gain coefficient at around 1.8 μm of gallium tellurite glass containing 9 mol.% BaF2 are 8.8 × 10−21 cm2 and 3.3 cm−1, respectively. These results indicate that Tm3+ doped gallium tellurite glasses containing BaF2 appear to be an excellent host material for efficient 2.0 μm fiber laser development.

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