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 
熟女自拍偷拍视频播放| 欧美日韩在线一区二区| 日本精品一区二区三区四| 亚洲国产精品欧美激情| 日本2区3区视频在线观看| 亚洲精品露脸自拍高清在线观看| 国产第一精品福利在线| 最新国语对白在线视频| 久久综合九色综合97婷婷| 在线观看国产激情免费视频| 国产精品毛片在线免费观看| 欧美日韩一区三区不卡在线| 日本偷拍一区二区三区| 视频二区国产欧美日韩| 亚洲邻家人妻一区二区| 国产免费一区二区福利| 亚洲天堂成人综合在线| 国产亚洲青春草在线视频| 中文字幕乱码熟女人妻| 亚洲大尺度视频在线观看| 亚洲丰满老熟女激情av| 中文字幕免费日本在线| av在线观看亚洲天堂| 成人免费大片黄在线播放| 国精品91人妻一区二区| 日本岛国免费一区二区| 国产成人综合亚洲不卡| 久久婷婷av一区二区三区| 久久国产精品午夜视频| 亚洲区1区3区4区中文字幕码| 精品一区无遮挡免费网站| 亚洲国产用力插视频在线播放| 青青草免费在线视频蜜臀| 伊人久久亚洲综合影院首页| 日韩人妖精品一区二区av| 婷婷亚洲五月伊人91| 一级特一黄大片欧美久久| 日韩精品有码在线视频| 国产特黄特色成年女人毛片免| 人妻丰满熟妇中文字幕| 亚洲午夜理论片av大片|