A formula of linewidth calculation based on relation of light intensity versus wavelength is presented and the calculated values are found to agree with experimental results.

介绍了一种根据光强与波长关系来计算线宽的公式，计算结果与实验结果相符。

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The expression of Fresnel formula, the reflectance of light intensity, and the transmission of light intensity were given in this particular case.

讨论了这种情况下的菲涅耳公式以及光强的反射比、透射比表达形式。

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