Size-Dependent Nonlinear Optical Properties of Gd(2)O(2)S:Tb(3+) Scintillators and Their Doped Gel Glasses.
Size-Dependent Nonlinear Optical Properties of Gd(2)O(2)S:Tb(3+) Scintillators and Their Doped Gel Glasses.
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DOI：
10.3390/molecules27010085
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发表时间：
2021-12-24
期刊：
影响因子：
--
通讯作者：
Zhou S
中科院分区：
文献类型：
--
作者：
Chen L;Wu C;Xie Z;Sun C;Zhou S
随着超快、高能量脉冲激光输出的发展，激光对精密仪器和人眼造成了严重的危害。因此，开发具有快速响应、低光限幅阈值和高损伤阈值的光限幅材料具有重要意义。在这项工作中，第一次，据报道，荧光粉Gd2O2S：Tb3+（GOS）显示特殊的功能，在激光防护。制备了尺寸为11 μm、1 μm和0.45 μm的GOS。基于光限幅和Z扫描技术系统，在532 nm和1064 nm纳秒激光激发下，研究了GOS的非线性光学特性。结果表明，GOS具有优异的光限幅特性。此外，GOS的光限幅响应具有尺寸依赖性。就最大粒径而言，GOS具有最好的非线性光学响应，而前驱体没有表现出非线性光学性能。同时，GOS掺杂的凝胶玻璃也表现出了优异的光限幅性能和高的透过率，初步验证了GOS和其他掺杂剂在非线性光学中的应用，并鼓励更多的研究更好地发挥GOS的潜力。
With the advancement of ultra-fast and high-energy pulsed laser output, lasers have caused serious harm to precision instruments and human eyes. Therefore, the development of optical limiting materials with a fast response, low optical limiting threshold, and high damage threshold are important. In this work, for the first time, it is reported that phosphors Gd2O2S:Tb3+(GOS) displays exceptional functionality in laser protection. GOS with sizes of 11 μm, 1 μm, and 0.45 μm are prepared. Based on the optical limiting and Z-scan technology systems under 532 nm and 1064 nm nanosecond laser excitation, the nonlinear optical properties of GOS are investigated. It is found that GOS exhibits outstanding optical limiting properties. In addition, the optical limiting response of GOS is size-dependent. Concerning the largest particle size, GOS has the best nonlinear optical response, while the precursor shows no nonlinear optical performance. Meanwhile, GOS doped gel glass also displays excellent optical limiting properties with high transmittance, which preliminarily validates the application of GOS and other scintillators in nonlinear optics and encourages more research to better realize the potential of GOS.
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发表时间：
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影响因子：
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