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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Sensitivity-enhanced Tm3+/Yb3+ co-doped YAG single crystal optical fiber thermometry based on upconversion emissions
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Sensitivity-enhanced Tm3+/Yb3+ co-doped YAG single crystal optical fiber thermometry based on upconversion emissions

机译：基于上调排放的灵敏度增强TM3 + / YB3 +共掺杂YAG单晶光纤测温法

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摘要

Optical thermometry based on Y3Al5O12 (YAG) single crystal optical fiber with end Tm3+/Yb3+ co-doped is presented. The YAG crystal fiber with end Tm3+/Yb3+ co-doped was grown by laser heated pedestal growth (LHPG) method. Under a 976 nm laser diode excitation, the upconversion (UC) emissions, originating from F-3(2,3) - H-3(6) and H-3(4) - H-3(6) transitions of Tm3+ ions, were investigated in the temperature range from 333 K to 733 K. Interestingly, the UC emission intensity of F-3(2,3) - H-3(6) transition was significantly enhanced with increase of temperature, as compared with the other Tm3+/Yb3+ co-doped materials. The temperature dependence of fluorescence intensity ratio (FIR) of these two emission bands (F-3(2,3)/H-3(4) - H-3(6)) suggests that this doped YAG crystal fiber can be used as a highly sensitive optical thermal probe, which demonstrates a high absolute sensitivity with the maximum value of 0.021 K-1 at 733 K. In addition, due to the compact structure, strong mechanical strength and high thermal stability, such thermal probe may be a more promising candidate for temperature sensor with a high spatial resolution. (C) 2017 Elsevier B.V. All rights reserved.
机译：基于Y3Al5O12（YAG）单晶光纤的光学温度介绍了具有端部TM3 + / YB3 +共掺杂的单晶光纤。具有端部TM3 + / YB3 +共掺杂的YAG晶体纤维被激光加热的基座生长（LHPG）方法生长。在976nm激光二极管励磁下，源自F-3（2,3）的上变（UC）排放 - ＆ H-3（6）和H-3（4） - ＆ H-3（6）在333k至733k的温度范围内研究了TM3 +离子的转变。有趣的是，F-3（2,3）的UC发射强度 - ＆随着其他TM3 + / YB3 +共掺杂材料相比，温度随温度而显着增强H-3（6）转变。这两个发射带（F-3（2,3）/ H-3（4） - ＆ H-3（6））的荧光强度比（FIR）的温度依赖性表明，这种掺杂的YAG晶体纤维可以是用作高敏感的光学热探针，其在733k下显示出高度值0.021k-1的绝对灵敏度。此外，由于结构紧凑，机械强度强，热稳定性高，这种热探针可以是具有高空间分辨率的温度传感器更有前途的候选者。 （c）2017年Elsevier B.V.保留所有权利。

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