光截止法中透光因子的解析式及其与碲镉汞组分的关系

应用科学学报 ›› 1989, Vol. 7 ›› Issue (2): 143-147.

光截止法中透光因子的解析式及其与碲镉汞组分的关系

戴显熹¹, 王新德²

1. 复旦大学;
2. 中国科学院上海技术物理研究所

收稿日期:1986-07-10 修回日期:1986-12-30 出版日期:1989-06-30 发布日期:1989-06-30

THE EXPRESSIONS OF TRANSMISIVITY IN THE METHODOF LIGHT CUT-OFF AND THE RELATION BETWEEN COMPOSITION OF Hg_1-x Cd_x Te AND TRANSMISIVITY

DAI XIANXI¹, WANG XINDE²

1. Fudan University, Shanghai;
2. Shanghai Institute of Technical Physics, Academia Sinica

Received:1986-07-10 Revised:1986-12-30 Online:1989-06-30 Published:1989-06-30

摘要/Abstract

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.

Abstract: The expressions of transmisivity in the method of light cut-off (for short and long wave-length oases respectively) were dirived:
f(ν_c)=1+15/(π⁴){x_c³ln(1-e^-x_c)-3∑_n=0^∞ e^-(n+1)x_c[2/((n+1)⁴)+(2x_c)/((n+1)³)+(x_c²)/((n+1)²)]} (x_c=(hν_c)/kT ≥ 2)
f(ν_c)=15/(π⁴)x_c³[1/(3)-(x_c)/8+(x_c²)/60-0.0001984x_c⁴+0.0000037x_c⁶-7.5156325×10^-8x_c⁸+1.6059044×10^-9x_c¹⁰-……] (x_c ≤ 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 Hg_1-xCd_xTe versus F (transmisivity) were obtained:
x=0.1334+0.8240F-2.140F₂+4.840F³ -5.450F⁴+2.550F⁵ (0.17 < x < 0.443)

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.

DAI XIANXI, WANG XINDE. THE EXPRESSIONS OF TRANSMISIVITY IN THE METHODOF LIGHT CUT-OFF AND THE RELATION BETWEEN COMPOSITION OF Hg_1-x Cd_x Te AND TRANSMISIVITY[J]. Journal of Applied Sciences, 1989, 7(2): 143-147.