免费看欧美性生活黄片-成年人免费在线看大片-精品少妇人妻中文字幕-日本一区二区免费在线视频

Dielectric Mirrors

關(guān)閉
產(chǎn)品咨詢
客服熱線:400-700-9997

●Product Description

A dielectric mirror, also known as a Bragg mirror, is a type of a mirror composed of multiple thin layers of dielectric material, typically deposited on a substrate of glass or some other optical material. By careful choice of the type and thickness of the dielectric layers, one can design an optical coating with specified reflectivity at different wavelengths of light. Dielectric mirrors are also used to produce ultra-high reflectivity mirrors: values of 98% or better over a narrow range of wavelengths can be produced using special techniques. Alternatively, they can be made to reflect a broad spectrum of light, such as the entire visible range or the spectrum of the Ti-sapphire laser. Mirrors of this type are very common in optics experiments, due to improved techniques that allow inexpensive manufacture of high-quality mirrors. Examples of their applications include laser cavity end mirrors, hot and cold mirrors, thin-film beamsplitters, and the coatings on modern mirrorshades.

●Filter Description

Dielectric mirrors function based on the interference of light reflected from the different layers of dielectric stack. This is the same principle used in multi-layer anti-reflection coatings, which are dielectric stacks which have been designed to minimize rather than maximize reflectivity. Simple dielectric mirrors function like one-dimensional photonic crystals, consisting of a stack of layers with a high refractive index interleaved with layers of a low refractive index (see diagram). The thicknesses of the layers are chosen such that the path-length differences for reflections from different high-index layers are integer multiples of the wavelength for which the mirror is designed. The reflections from the low-index layers have exactly half a wavelength in path length difference, but there is a 180-degree difference in phase shift at a low-to-high index boundary, compared to a high-to-low index boundary, which means that these reflections are also in phase. In the case of a mirror at normal incidence, the layers have a thickness of a quarter wavelength.

●Specifications

 

Substrate material: BK7,Fused Silica, Pyrex
Diameter tolerance: +0/-0.2mm
Thickness tolerance: +/-0.2mm
Surface Quality: 60-40 for instrumental application
Coating: R>=98.8%, 0 degree AOI
              R>=98.5%, 45 degree AOI 
国产精彩视频一区二区三区| 亚洲av色区一区二区三区| 亚洲日本韩国一区二区| 二次元中文字幕色在线| 加勒比视频在线观看一区| 在线精品日韩一区二区三区| 亚洲一区二区三区日本人妻| 精品午夜人妻一区二区| 欧美日韩亚洲综合在线| 欧美国产精品一区二区免费 | 国产夜色高潮在线播放| 日本精品三级一区二区视频| 美女主播在线一区二区| 亚洲一区二区在线日韩| 人人狠狠综合久久亚洲| 亚洲国产精品久久九色| 国产精品一区二区女厕| 国产乱码精品一区二区三区忘忧草| 日日麻批免费高清视频| 中文字幕一区日韩一区| 中文字幕高清不卡视频二区| 自拍一区日韩二区欧美三区| 99偷拍在线视频精品| av国产剧情在线观看| 少妇被爽到高潮喷水免费福利 | 日韩亚洲人成网站在线播放| 久久久精品人妻一区二区三区免费 | 国产精品丝袜一区二区三区| 精品国产精品久久一区免费式| 国产精品一区二区av白丝| 日韩国产自拍精品在线| 亚洲成人高清在线播放| 久久99国产综合精品女同| 91亚洲国产成人久久精品网站 | 视频一区二区国产盗摄| 最新亚洲香蕉有码视频| 天堂精品中文字幕在线| 欧美日韩国产精品久久| 亚洲乱码国产乱码精品精98午夜| 麻豆视频在线观看播放| 亚洲五月天小说综合网|