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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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通过与JGB混合来调整DR1的光学和光物理特性
Ahmed R Ghazy1, S A Abdel Gawad2, Alaa Ashraf1
1Laser Laboratory, Physics Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
概括
这项研究研究了Disperse Red 1 (DR1) 和Janus Green B (JGB) 染料混合物的光学特性. 它们的能量差距和光学常数随着染料度的增加而系统地变化,与理论模拟保持一致.
科学领域:
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
- 频谱学是一种光谱学.
背景情况:
- 了解染料混合物的光学特性对于开发新材料至关重要.
- 分散红1 (DR1) 和日绿B (JGB) 是具有明显光谱特征的常见染料.
研究的目的:
- 为了研究DR1和JGB染料混合物的光学特性.
- 为了确定染料度如何影响光学常数和能量差距.
- 将实验结果与理论模拟进行比较.
主要方法:
- 用不同的DR1和JGB度制备染料混合物.
- 光谱分析包括吸收和光光谱.
- 计算光能间隙,折射率,灭绝系数,介电常数和光导率.
- 时间依赖密度功能理论 (TD-DFT) 模拟.
主要成果:
- 对于DR1和JGB的实验能量差距分别为2.234 eV和1.666 eV.
- 混合物能量差距在这些值之间,显示了与度的系统变化.
- 折射率,介电常数和光导率随着染料组成而有系统的变化.
- 光强度随着混合物组成而变化.
- TD-DFT模拟支持实验光学吸收和电子结构数据.
结论:
- 通过调整染料度,可以调整DR1/JGB混合物的光学特性.
- 实验结果与TD-DFT的理论预测一致.
- 这项研究提供了对二进制染料系统光学行为的洞察.
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