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首页> 外文期刊>Applied optics >Phase shift and penetration depth of metal mirrors in a microcavity structure
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Phase shift and penetration depth of metal mirrors in a microcavity structure

机译：微腔结构中金属镜的相移和穿透深度

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Optical properties of metal films, such as phase shift on reflection or penetration depth of electromagneticwaves into mirrors, play an important role in determining the resonance wavelength of a microcavity. We created a series of lambda/2 cavities with a symmetrical structure of glass/Ag/lithium fluoride/Ag by changing the thickness of the Ag film. The penetration depth at different thicknesses of Ag film was obtained from the transmittance peaks of the cavities. Phase shift on reflection at the lithium fluoride-Ag interface was calculated based on the measured optical constants. The formulation between phase shift and penetration depth was proved by experimental results, which are in good agreement with the theoretical calculations.
机译：金属膜的光学特性，例如反射的相移或电磁波向镜子的穿透深度，在确定微腔的共振波长方面起着重要作用。通过改变银膜的厚度，我们创建了一系列具有玻璃/银/氟化锂/银对称结构的λ/ 2腔。从腔的透射率峰值获得不同厚度的Ag膜的穿透深度。根据测得的光学常数，计算出氟化锂-Ag界面反射时的相移。实验结果证明了相移与穿透深度之间的关系式，与理论计算结果吻合良好。

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