严格的数值计算结果表明：两类透镜的纵、横向球差都随折射率梯度的增强而减小。
The accurate expressions to calculate the aberration for two sorts of lens decrease on the increase of gradient index.
本文研究一类抛物型发散梯度折射率棒透镜中高斯光束的传播。
Gaussian beam propagation through a kind of parabolic divergent GRIN rod lenses is studied.
重点讨论了以“热透镜效应”和“蜃景效应”为基础的一类激光光热光谱法。
A laser photothermal spectrometry based on the "thermal lens effect" and the "mirage effect" is discussed with emphasis.
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