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首页> 外文期刊>Coatings >Ultra-Low Reflectivity Anti-Reflection Coating on a Plastic Cover Slip in Liquid for He-Ne Laser Light
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Ultra-Low Reflectivity Anti-Reflection Coating on a Plastic Cover Slip in Liquid for He-Ne Laser Light

机译：He-Ne激光液体中的塑料盖玻片上的超低反射抗反射涂层

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An ultra-low anti-reflection optical coating on both surfaces of a plastic cover slip was studied for use in confocal image measurements. The optical reflectance at a wavelength of 632.8 nm was less than 0.1% when the coated sample was placed in a liquid having a refractive index of 1.34, close to the aqueous solution of the biomaterial. The high- and low-index coating films, Substance-2 (PrTiO 3 ) and silicon dioxide (SiO 2 ), were measured by an ellipsometer to determine their optical refraction indices and extinction coefficients. Theoretically, when the two layer thicknesses are designed using the optical admittance diagram of the cover slip to approach the equivalent index of 1.34, a reflectance of 1.6 × 10 ?5 % in the liquid could be obtained. Experimentally, the reflectance of the sample deposited on the two faces of the cover slip was 4.223 ± 0.145% as measured in the air; and 0.050 ± 0.002% as measured by a He-Ne laser in the liquid.
机译：研究了塑料盖玻片两个表面上的超低减反射光学涂层，用于共焦图像测量。当将涂覆的样品放置在折射率为1.34的接近生物材料的水溶液的液体中时，在632.8nm的波长处的光反射率小于0.1％。用椭偏仪测量高和低折射率涂膜Substance-2（PrTiO 3）和二氧化硅（SiO 2），以确定它们的光学折射率和消光系数。从理论上讲，当使用盖玻片的光导率图设计两层厚度以达到等效折射率1.34时，在液体中的反射率可以达到1.6×10〜5％。实验上，在空气中测得，沉积在盖玻片两个面上的样品的反射率为4.223±0.145％。氦氖激光在液体中测得的值为0.050±0.002％。

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