| 光截止法中透光因子的解析式及其与碲镉汞组分的关系 |
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| 引用本文： | 戴显熹 王新德. 光截止法中透光因子的解析式及其与碲镉汞组分的关系[J]. 应用科学学报, 1989, 7(2): 143-147 |
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| 作者姓名： | 戴显熹 王新德 |
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| 作者单位： | 1. 复旦大学;2. 中国科学院上海技术物理研究所 |
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| 摘 要： | 本文导出光截止法中透光因子的解析式,它们分别适用于短波和长波.这些表式被用于实验测量并证明对改善精度和测量速度是很有用的.根据这些表式,获得精度为10-5的3000个数值的表,进而得到碲镉汞组分x和透光因子F的一个有用的精确到2×10-4的解析式.
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| 关 键 词： | 光截止法 透光因子 解析式 |
| 收稿时间： | 1986-07-10 |
| 修稿时间： | 1986-12-30 |
THE EXPRESSIONS OF TRANSMISIVITY IN THE METHODOF LIGHT CUT-OFF AND THE RELATION BETWEEN COMPOSITION OF Hg1-x Cdx Te AND TRANSMISIVITY |
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| DAI XIANXI,WANG XINDE. THE EXPRESSIONS OF TRANSMISIVITY IN THE METHODOF LIGHT CUT-OFF AND THE RELATION BETWEEN COMPOSITION OF Hg1-x Cdx Te AND TRANSMISIVITY[J]. Journal of Applied Sciences, 1989, 7(2): 143-147 |
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| Authors: | DAI XIANXI WANG XINDE |
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| Affiliation: | 1. Fudan University, Shanghai;2. Shanghai Institute of Technical Physics, Academia Sinica |
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| Abstract: | The expressions of transmisivity in the method of light cut-off (for short and long wave-length oases respectively) were dirived:f(νc)=1+15/(π4){xc3ln(1-e-xc)-3∑n=0∞ e-(n+1)xc[2/((n+1)4)+(2xc)/((n+1)3)+(xc2)/((n+1)2)]} (xc=(hνc)/kT ≥ 2)f(νc)=15/(π4)xc3[1/(3)-(xc)/8+(xc2)/60-0.0001984xc4+0.0000037xc6-7.5156325×10-8xc8+1.6059044×10-9xc10-……] (xc ≤ 2)These expressions were used in the experimental measurements. It was proved that the expressions were useful in improving the accuracy and measuring speed. According to these expressions a table (with 3000 data and an accuracy of 10-5) and a useful expression (with a calculating accuracy of 2×10-4) of x (the composition of Hg1-xCdxTe versus F (transmisivity) were obtained:x=0.1334+0.8240F-2.140F2+4.840F3 -5.450F4+2.550F5 (0.17 < x < 0.443) |
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