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 
中文字幕一区二区三区久久久| 国产综合色产在线精品| 中文字幕99国产精品| 成人免费亚洲av在线| 日韩特级黄片在线免费观看| 亚洲av一区二区三区网站| 国产在线视频不卡福利片| 午夜免费观看国产视频| 国产精品妇女一二三区| 麻豆视频成年人在线免费观看| 久久国产精品免费一区二区 | 一区二区三区一级黄片| 久久热最新免费观看视频| 日本高清不卡在线视频| 狼人综合伊人免费在线| 国产激情小视频在线观看| 中文字日产幕码三区国产| 97精品久久九九中文字幕| 日韩日韩毛片日韩毛片| 91国产性感美女视频| 亚洲精品私拍国产在线播放| 国产在线播放一区二区不卡| 国产av一区二区三区精品最新| 国产一区二区三区内射| 成人午夜亚洲精品在线观看 | 欧美av精品一区二区三区| 日本午夜激情一区二区| 国产精品极品网站91青青| 国产亚洲精品中文字幕免费| 蜜桃视频免费在线观看视频 | 99久久久精品国产性黑人| 国产高清在线精品一区| 日韩中文在线一区二区| av免费在线观看蜜臀| 九色综合一区二区三区| 国产精品一区二区三区日本| 亚洲精品专区永久免费区| 国产成人av区一区二区三泡芙| 久草国产手机视频在线观看| 亚洲天堂一区二区三区| 日本高清不卡不码免费|