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| 非线性光学晶体硼酸镧钠(Na_3La_9B_8O_(27))的光谱研究 | |
| 引用本文： | 侯碧辉,张云,韩守振,白晓艳,傅佩珍,陈华,汪力.非线性光学晶体硼酸镧钠(Na_3La_9B_8O_(27))的光谱研究[J].光散射学报,2007,19(4):325-329. |
| 作者姓名： | 侯碧辉 张云 韩守振 白晓艳 傅佩珍 陈华 汪力 |
| 作者单位： | 1. 北京工业大学应用数理学院,北京,100022 2. 中国科学院理化研究所,北京,100080 3. 中国科学院物理研究所,北京,100080 |
| 基金项目： | 国家自然科学基金(批准号:50672104和10390160)资助项目。 |
| 摘 要： | 测量了Na3La9B8O27晶体在紫外-可见光-红外波段的透射光谱和反射光谱,分析得到其在上述波段的吸收光谱。在波长400nm~2000nm范围内,透射比超过80%,禁带宽度为3.93eV,没有明显的缺陷和杂质吸收。测量了该晶体在太赫兹波段的时域光谱,分析得到其在上述波段的吸收光谱、折射光谱,且通过光学常数之间的关系,得到其介电常数ε曲线。在0.3~1.5THz内吸收小于10cm-1。在0.3~2.4THz内,介电常熟实部ε1成近似线性递增趋势,介电常熟虚部ε2小于0.03。 |
| 关 键 词： | 吸收光谱 太赫兹 硼酸镧钠 |
| 文章编号： | 1004-5929（2007）04-0325-05 |
| 收稿时间： | 2007-06-30 |
| 修稿时间： | 2007年6月30日 |
Spectrum Study of Nonlinear Optical Crystal Sodium Lanthanum Oxyborate (Na3La9B8O27) |
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| HOU Bi-hui,ZHANG Yun,HAN Shou-zhen,BAI Xiao-yan,FU Pei-zhen,CHEN Hua,WANG Li.Spectrum Study of Nonlinear Optical Crystal Sodium Lanthanum Oxyborate (Na3La9B8O27)[J].Chinese Journal of Light Scattering,2007,19(4):325-329. | |
| Authors: | HOU Bi-hui ZHANG Yun HAN Shou-zhen BAI Xiao-yan FU Pei-zhen CHEN Hua WANG Li |
| Abstract: | Transmittance and Reflectance spectrum in UV-IR band of Na3La9B8O27 had been measured.Absorption spectra in above band had been gained from analysis. Transmittance is more than 80% from 400 to 2000nm.The width of forbidden band (Eg) is 3.93eV.There is no obvious absorption from defect and impurity.Time-domain spectrum in THz band was measured.Absorption and refractive spectra in above band had been gotten.According to the relation of optical constants,dielectric constant ε curve of the crystal had been gained.The absorption coefficient is less than 10/cm from 0.3 to 1.5 THz.Real part of dielectric constant ε1 steadily and monotonically increase and imaginary part of dielectric constant ε2 is less than 0.03 in THz band. |
| Keywords: | Absorption spectrum THz Na3La9B8O27 |
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