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 
中文字幕一区二区人妻中文字| 色播五月麻豆激情综合网| 日韩免费人妻av一区二区三区| 日本高清日本道不卡视频| 日本一区二区日韩在线| 日本韩国国内精品一区二区三区| 国产亚洲欧洲在线观看| 乱熟av一区二区三区| 国产亚洲精品1区2区| 国产精品福利一区二区三区| 日韩在线免费播放视频| 刘亦菲毛片一区二区三区| 摸奶子中文字幕av在线| 国产高清在线精品一区二区 | 国产成人亚洲精品在线看| 丰满大乳少妇在线观看网站| 国产精品自拍视频合集| 四只虎视频大全免费观看| 女人av天堂国产在线| 日韩成人手机视频在线观看| 9热在线视频精品这里只有| 国产一区二区三区av在线播放| 久草手机福利在线观看| 亚洲精品乱码精品乱码不卡| 欧美丝袜熟女日韩亚洲| 精品久久人妻中文字幕| 熟妇人妻精品一区二区| 初尝人妻少妇中文字幕在线| 久久精品国产69国产精品亚洲| 免费国产中文字幕黄网站| 中文有码精品视频一区二区| 亚洲视频在线中文字幕乱码 | av毛片天堂在线观看| 亚洲国产精品天堂一区| 日本新任女教师在线播放| 99精品日本观看久久| 国产中文字幕精品在线观看| 日本一区二区视频免费播放 | 国产福利午夜在线播放| 亚洲专区综合红桃av| 亚洲久久精品成人在线|