论文标题
\ b {eta} -ga2O3的高度不对称光学特性，如线性和非线性光激发光谱探测
Highly asymmetric optical properties of \b{eta}-Ga2O3 as probed by linear and nonlinear optical excitation spectroscopy
论文作者
论文摘要
通过极化依赖性光致发光（PL）激发光谱研究了B-GA2O3的高度不对称光学特性，以评估其对新型紫外发射器和非线性光学材料的潜在用途。基于功率依赖性激发和两光子深度扫描，证明PL的基本机制远低于带隙，而是由固有的极性效应引起的，而是由外部缺陷位点的激发型重组引起的。
Highly asymmetric optical properties of b-Ga2O3 are investigated by polarization-dependent photoluminescence (PL) excitation spectroscopy for assessing its potential use for a novel ultraviolet emitter and nonlinear optical material. Based on power-dependent excitation and two-photon depth scan, it is demonstrated that the underlying mechanism for the PL occurring far below the bandgap is not caused by intrinsic polaron effects, but by excitonic recombination at extrinsic defect sites.
