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(duì)光學(xué)監(jiān)控系統(tǒng)引起的薄膜厚度和折射率的誤差進(jìn)行分析网址黄免费。提出膜系的允差分析精品国产一级A片在线看。盡量減小由于監(jiān)控設(shè)備引起的誤差欧美性交小说网。

Based on the traditional geometric optics principles and the method of ray tracking, this paper reports the calculation of the aberration of the mode index lens when the collimated beam incidents upon it inclinely with an angle, and the divergency of the output beam from the MIL when it works as a collimator for the end-butt coupling between the semiconductor laser and the waveguide.

本文從傳統(tǒng)幾何光學(xué)原理出發(fā)爱爱大学网站免费观看，用光線追跡的方法來計(jì)算研究準(zhǔn)直光束斜入射到模折射率透鏡上產(chǎn)生的像差，以及當(dāng)半導(dǎo)體激光器與波導(dǎo)端射耦合以MIL作為準(zhǔn)直透鏡時(shí)精品乱子伦一一级大毛片，輸出準(zhǔn)直光束的發(fā)散情況中文av黑人人妻av有码中文，并探討MIL在集成光學(xué)頻譜分析儀中作為準(zhǔn)直或會(huì)聚透鏡的適用性。

And a standard hyperhemisphere immersion lens with high refractive index is put behind the object lens to satisfy the receiving of a detector with smaller photosensitive surface.

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Using this method, the optical path difference can be detected accurately, if put medium to the light path. Therefore, it is a new method to measure medium refractive index.

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Based on a differential refractometry, a reference water cell filled with distilled water to reduce influence of temperature drift effectively is partitioned by an oblique optical-transmission plate from a horizontal rectangular water tank, which, as a measurement element, is filled with measured salt water.

基于差動(dòng)折射率測(cè)量原理能在线播放的av网址，引入了一個(gè)裝有蒸餾水的參考水槽，從而有效地減小了溫度漂移對(duì)鹽度測(cè)量帶來的影響一级黄片二级黄。

In this paper the aberrations of a sort of sphere lens with spherical Symmetrical gradient index have ben analysied.

本文分析了一種折射率為球?qū)ΨQ梯度分布的球形透鏡的像差亚洲专区亚洲播放区在线视频，得到了該透鏡對(duì)無限遠(yuǎn)物點(diǎn)的縱、橫向球基及其焦距的精確表達(dá)式免费国产牲交视频在线播放。

It is found from experiment that when pumped by skew light along the fibre's axis, both transverse electric wave and transverse magnetic wave exist in WGM lasing emission simultaneitly. With the increase of refractive index of cladding dye solution, the wavelength spacing between TE and TM waves of which the radial mode number and angular mode number are the same value decreases, and the central lasing wavelength of WGM bluely shifts to short wavelength direction.

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The invention discloses an optical-fiber all-optical code converter, comprising a temperature control circuit as well as optical-fiber Mach-Zed interferometer, heat sink, semiconductor refrigerator, thermosensitive resistor and radiator, where the interferometer is composed of two cascaded 3dB couplers on the heat sink, the relation between length difference delta L of two arms of the interferometer and generated delay time difference delta T is that delta L=c.delta T/n, where c is light velocity in vacuum and n is refractive index of optical fiber; the thermosensitive resistor is used to detect temperature of interferometer, the temperature control circuit is used to compare feedback voltage of the thermosenstive resistor with a given voltage to regulate working current of the semiconductor refrigerator, and the semiconductor refrigerator refrigerates or heat two arms of the interferometer by the heat sink.

本發(fā)明公開了一種光纖型全光碼型轉(zhuǎn)換器国产情侣第一页，它包括溫控電路和位于密封盒內(nèi)的光纖型馬赫-澤德干涉儀、導(dǎo)熱熱沉在线国产观看、半導(dǎo)體制冷器91av视频第二页、熱敏電阻以及散熱片免费看AV的无毒网址网站入口；干涉儀由位于導(dǎo)熱熱沉上的二個(gè)3dB耦合器級(jí)聯(lián)而成，兩臂的長度差ΔL與產(chǎn)生的延時(shí)差ΔT之間的關(guān)系為ΔL＝c黄片啊草。ΔT/n久久九九视频精品免费高清，c為真空中光速，n為光纖折射率淫逼色操网；熱敏電阻用于對(duì)干涉儀的溫度進(jìn)行探測(cè)欧美性爱电影播放，溫控電路用于比較熱敏電阻反饋的探測(cè)電壓和設(shè)定電壓，對(duì)半導(dǎo)體制冷器的工作電流進(jìn)行調(diào)節(jié)女生自慰喷水在线观看，半導(dǎo)體制冷器通過導(dǎo)熱熱沉對(duì)干涉儀兩臂同時(shí)進(jìn)行制冷或加熱久久99久久1。

The lens axicon is based on the use of the spherical aberration of the mirror surfaces,which is inexpensive and easy to manufacture into a element with large apertures as compared with diffractive axicons,refractive cone axicons,and earlier lens axicons with aspheric surfaces;the opaque disk can offer the Bessel beams with long non-diffracting distances,and the diameter of the central peak is adjusted by choosing the focal length of the collimating lens;the tunable fluidic conical lens is a new device for generating Bessel beams,which can obtain the Bessel beams with different parameters by varying the refractive indexes of the solution which is filled in the device.

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In the program, on theoretically we have studied the effects of configuration, the arranged periodic length and the refractive index ratio on PBG using finite difference time dormain method; on experimental, we have synthesized monodispersed silaca microspheres with size of 150-320 nm by colloidal chemical methods. And 3D perfect photonic crystals were prepared using the evaporating of acetone self-assembling the monodispersed SiO2 microspheres on quartzes by and horizontal and vertical deposition methods.

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