Terahertz radiation, which is a kind of electromagnetic wave between the infrared and microwave bands, belongs to far-infrared band. THz time-domain spectroscopy which developed in the 1980\'s has the advantages of high signal to noise ratio, obtaining the absorption coefficient and refractive index of the sample at one time , low energy that can not distroy the biology organise and so on.

太赫茲輻射是指頻率位于微波和紅外光之間的電磁波国产中文在线精品一区，屬于遠紅外波段亚洲入口夜狼在线观看；20世紀80年代發(fā)展起來的THz時域光譜技術(shù)扒开双腿疯狂进出爽爽爽视频，具有信噪比高亚洲中文精品图区，能同時獲得樣品的吸收系數(shù)和折射率国产视频黄搜索，能量低，不會對生物組織造成破壞等優(yōu)點538免费在线视频精彩观看，在材料和生物學等領(lǐng)域得到了迅速的發(fā)展和廣泛的應(yīng)用亚洲欧美在线视频免费。

The third order nonlinear optical refractive index and nonlinear absorption coefficient are enhanced due to the quantum confinement effects and estimated to be 4×10 -12 m 2/W and 2×10 -5 m/W respectively in nonresonant condition,while 2×10 -11 m 2/W and -1×10 -4 m/W respectively in quasi resonant condition.

結(jié)果表明，薄膜的三階光學非線性折射率系數(shù)和非線性吸收系數(shù)都由于量子限制效應(yīng)而大大地增強黄业网站免费在线观看，在非共振條件下黄色视频.免费观看网站，它們分別約為 4× 10 - 1 2 m2 / W和 2× 10 - 5m/ W，在準共振的條件下人人做人人爽国产视，它們分別約為 2× 10 - 1 1 m2 / W和- 1× 10 - 4m/ W乱论强奸欧美。

After fast Fourier transform , the amplitude and phase of the THz pulse wave is given, then the refractive index and absorption of the material in THz region is extracted.

它以THz輻射作為探測源，利用電光采樣或光電導采樣方法直接記錄THz輻射電場的振幅時間波形国产精品三区视频，通過傅立葉變換得到測量信號振幅和相位的光譜分布禁止18岁观看，進而獲得材料在THz波段的吸收和色散等信息。

Absorption spectrta, fluorescence spectra , linear absorption coefficient, linear refractive index, molecule concentration of liquid samples and thickness of thin films were measured.

對自制的偶氮苯樣品作吸收光譜女被男啪出水免费的网站、熒光光譜特黄特色大片无码特性视频、線性吸收系數(shù)、線性折射率以及液體樣品的濃度和薄膜樣品的膜厚等的測量久久综合加勒比金八天国。

According to the Kramers-Kronig relation the absorption spectrum change of a sample will cause the refractive index change.

根據(jù)Kramers-Kronig變換關(guān)系可以免费看黄色网站，樣品吸收光譜的變化會引起樣品折射率的變化。

In 1961 they published the first carrier will be injected into the semiconductor PN junction to achieve the "injection laser" exposition and demonstration in the tunnel diodes as high as in Jane and the PN junction to achieve population inversion (which is Produced by stimulated emission of the necessary conditions for) the possibility, but also that active high-density areas around the most active carrier of the border areas on both sides of the refractive index of a difference, creating optical waveguide effect.

他們又于1961年最先公開發(fā)表將載流子注入半導體PN結(jié)以實現(xiàn)"注入激光器"的論述亚洲区欧美区综合区自拍区免，并論證了在如隧道二極管中那樣高度簡并的PN結(jié)中實現(xiàn)粒子數(shù)反轉(zhuǎn)(這是產(chǎn)生受激發(fā)射的必要條件)的可能性热久久伊人，而且還認為有源區(qū)周圍高密度的多數(shù)載流子造成有源區(qū)邊界兩邊的折射率有一差值，因而產(chǎn)生光波導效應(yīng)丰满美女黄网站AV。

By use of the feature of the air temperature round the hot cylinder and the relation between the refractive index and the temperature of the air, the surface temperature of it can be determined.

最后人人爽人人爽人人COm，利用熱圓柱體附近空氣溫度分布的特點，以及空氣溫度和折射率之間的關(guān)系欧美操屄视频在线播放，確定圓柱體的表面溫度无码免费毛片毛机在线ww。

In this paper, we analyzed the error of film thickness and refractive index caused by the optical control system, and also analysed the allowable error.

通過對光學監(jiān)控系統(tǒng)引起的薄膜厚度和折射率的誤差進行分析。提出膜系的允差分析人妻啪啪视频。盡量減小由于監(jiān)控設(shè)備引起的誤差黄色在线专区。

The calculations show that the principle formula error have small influence on the aberrations of an optical system, but as the stundard measurement of a refractive index, so great principle formula error is not allowable.

這樣呦呦导航在线，雖然儀器本身具有高精度的測試性能，但原理公式誤差大大地超過了儀器的測試精度国产精彩小视频，導致錯誤的測試結(jié)果男人的免费网站网站。因此指出原理公式誤差，評價其大小国产永久亚洲18禁在线，重新推導測量絕對

Secondly, due to the alterability of organic polymer, an instrument is built to measure the film parameters. The instrument utilizes the prism coupling method to measure the refractive index and thickness of the polymeric film.

設(shè)備可以對聚合物薄膜同時完成折射率和厚度的測量亚洲一边摸一边插在线视频，具有一定的精度，速度快91视频网站入口，可同時應(yīng)用與各種常用通信波段下的參數(shù)測量经典1页日韩中文字幕视频在线。