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本文用 Interphako 干涉显微镜测量了经 NaNO_3盐浴处理的玻璃薄片中的梯度折射率分布。将剪切微差干涉测得的结果与剪切干涉的结果进行了比较,并讨论两种测量方法的特点和误差。
The gradient refractive index profile in glass flakes treated with NaNO 3 salt bath was measured by Interphako interference microscope. The results of shear-perturbation interference were compared with the results of shear interference and the characteristics and errors of the two methods were discussed.