The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

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First the traditional non-optical detection technology for gas concentrations is briefly introduced, such as ultra-sound technology, gas sensing, catalytic thermal, gas chromatography, interferometry applications, and then the spectral analysis based on the concentration of gas detection is discussed. The latest technological developments on the differential absorption spectroscopy, Fourier transform infrared spectroscopy, tunable laser diode laser absorption spectroscopy, laser radar and differential absorption Raman scattering laser radar, laser-induced fluorescence spectroscopy, laser Photoacoustic Spectroscopy are reviewed in detail.

首先對傳統(tǒng)的非光學(xué)氣體濃度檢測技術(shù)作出了簡單的介紹，包括超聲波技術(shù)日本三级网站、氣敏法看av网址、熱催化法、氣相色譜法外国免费黄色网站、干涉法應(yīng)用技術(shù)国产jiizz，被動檢氣管法，然后重點闡述了基于光譜學(xué)分析氣體濃度檢測技術(shù)的最新發(fā)展動態(tài)人人操天天射人人人玩，其中分別對差分吸收光譜技術(shù)女人毛二片十八A级毛片、傅里葉變換紅外光譜技術(shù)、可調(diào)諧激光二極管激光吸收光譜技術(shù)在线免费观看黄色一级视频、差分吸收激光雷達(dá)和拉曼散射激光雷達(dá)亚洲一级婬片A片AAA毛片to、激光誘導(dǎo)熒光光譜技術(shù)、激光光聲光譜技術(shù)進(jìn)行了詳細(xì)介紹公侵犯人妻中文字幕在线视频，最后提出了現(xiàn)代氣體濃度檢測技術(shù)的發(fā)展方向亚州AV无码专区在线电影。

The difference in the absorption coefficient for normal human stomach mucosa/submucosa tissues between 1064 and 532 nm is 53.8%,and the difference in the reduced scattering coefficient for tissue samples between 1064 and 532 nm is 52.2%,and the difference in the optical penetration depth for tissue samples between 1064 and 532 nm is 113%,and the difference in the diffusion constant for tissue samples between 1064 and 532 nm is 110%.

正常人胃黏膜/黏膜下層組織對1064 nm的激光的吸收系數(shù)與其對532 nm的激光的吸收系數(shù)的差異為53.8%，其對1064 nm的激光的約化散射系數(shù)與其對532 nm的激光的約化散射系數(shù)的差異為52.2%H视频在线看一区，其對1064 nm的激光的光學(xué)穿透深度與其對532 nm的激光的光學(xué)穿透深度的差異為113%国产91精品肉色丝袜，其對1064 nm的激光的漫射系數(shù)與其對532 nm的激光的漫射系數(shù)的差異為110%。

Based on the previous literatures, the following major innovation works were carried out in this dissertation:(1) The derivatization reaction conditions of ephedrine and pseudoephedrine with sensitive derivation reagent in aqueous system were studied and two new methods were developed for the assay of them by microemulsion electrokinetic chromatography and micellar electrokinetic chromatography with LIF detection. The sensitivity and analysis times were greatly improved compared with the previous reports;(2) A new method of CZE with indirect LIF detection was developed for the simultaneous determination of six coumarin compounds (esculin, esculetin, isofraxidin, genistein, naringin and sophoricoside) with fluorescein as the probe. The proposed method enlarges the application range of LIF detector, and provides new approach for the analysis of certain compounds difficult to derivatize;(3) Based on the above research, an MEKC with indirect LIF detection method for the simultaneous determination of adenine and guanine in DNA extracts from fungus, maize and soybean was established;(4) A new method for the investigation of the complexes formed between human serum albumin and ampicillin sodium under the simulated physiology conditions using laser light scattering technique was developed.

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Resonant laser ablation is a two-step process, occurring within a pulse of a tunable laser, in which the leading edge of the laser pulse ablates the surface of the solid sample to produce neutral atoms or molecules that are then resonantly ionized by the trailing edge of the same pulse.

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The experimetal results show that the flexural moment of the sample in the prebending direction is far bigger than that in the vertical direction to pre-bending and the spherical shape can be conquered during pre-loading laser peening forming to a great extent.

試驗結(jié)果表明，在彈性預(yù)加載下播放很快的你懂的的在线，板料在彈性預(yù)彎方向獲得的彎矩要比與彈性預(yù)彎垂直方向上的彎矩大得多人人上人人肉人人插，彈性預(yù)加載下激光噴丸成形可以有效地克服自由狀態(tài)下激光噴丸件呈球形現(xiàn)象，激光噴丸件的曲率是自由狀態(tài)下激光噴丸成形曲率的2～3倍永久在线观看国产日韩va；在相同曲率下欧美18xxoo，彈性預(yù)加載下激光噴丸成形件的表面粗糙度比自由狀態(tài)下激光噴丸成形件的表面粗糙度要低1～2等級，因此彈性預(yù)加載下激光噴丸成形要優(yōu)于自由狀態(tài)下的激光噴丸成形亚洲色影院网站。

Our main work is as follows: the stable laser mode theory in uniform plasmas is extended to non-uniform plasma cases; the discussion of the sufficient and necessary conditions for laser self-focusing in uniform plasmas is developed to non-uniform plasma cases; a quantitative approach to judge the impact of different plasma density distribution on laser self-focusing is proposed; the evolution properties of asymmetric laser filed in non-uniform and uniform plasmas are discussed and mechanisms that symmetric channel-like plasmas can confine the laser centroid around the plasma channel axes and symmetrize initially asymmetric laser beams are proposed; the formation of solitary standing wave in moderate plasma density is studied by PIC simulations and can be explained by stimulated Raman scattering of laser beams in plasmas.

主要工作為：把均勻等離子體中激光的穩(wěn)定模理論推廣到橫向非均勻等離子體情形黄色网站大全入口；把均勻等離子體中激光自聚焦的充分和必要條件的討論推廣到橫向非均勻等離子體情形；給出橫向密度分布不同的等離子體影響激光自聚焦的定量判據(jù)精品三级在线观看。討論了初始不對稱的激光場在橫向非均勻及均勻等離子體中的演化特性人人摸人人操，并提出了具有對稱腔道結(jié)構(gòu)的等離子體箍縮激光質(zhì)心和對稱化初始不對稱激光場的物理機制。用粒子模擬討論了激光場在等離子體中形成孤立駐波的過程操屄A∨，認(rèn)為前向受激拉曼散射是發(fā)生此現(xiàn)象的可能機制99国内精品人人操。

Based on the laser longitudinal mode splitting theory, a novel scheme of dual-frequency laser with large frequency-difference is presented using electrically controlled birefringence of liquid crystal, and the transmitted resonant mode splitting by birefringent of Fabry-Perot etalon has been analyzed theoretically. A new element of liquid crystal Fabry-Perot etalon is designed and fabricated, which serves as aselector and splitter of both laser longitudinal modes and Fabry-Perot etalons transmitted resonant modes. Two different experimental systems of laser-diode end-pumped Nd:YAG laser have been set up using two different LDs, and the transmission of liquid-crystal cell have been measured. When the empty LCFP is inserted in the cavity of high-power LD pumped Nd:YAG laser, the oscillation of a single laser longitudinal mode have been observed, such a result shows that the designed and fabricated LCFP element is capable of selecting single axial mode. While an anti-reflected liquid crystal cell is inserted in the cavity of Nd:YAG laser end-pumped by the high-power LD, it is difficult to confirm weather the laser longitudinal modes have been spitted or not. The subject is summarized in this thesis and the improvement of the project has been presented.

論文以激光縱模的分裂理論為基礎(chǔ)，提出了可望獲得幾十GHz甚至上百GHz的液晶電控雙折射雙頻Nd：YAG激光器的總體方案日韩另类福利影院在线播放，并對用雙折射效應(yīng)分裂F-P標(biāo)準(zhǔn)具透射諧振模進(jìn)行了理論分析无码小视频在线观看；設(shè)計并加工了一種集激光縱模選擇、激光縱模分裂和F-P標(biāo)準(zhǔn)具諧振透射模分裂于一體的多功能元件——液晶電控雙折射F-P標(biāo)準(zhǔn)具国产91一区在线；建立了兩種不同功率激光二極管端面泵浦的Nd：YAG激光實驗系統(tǒng)26uuu色噜噜在线播放，并對液晶盒的透射性質(zhì)進(jìn)行了測試；將未灌注液晶的空液晶F-P摘要標(biāo)準(zhǔn)具插入大功率LD泵浦Nd：国产欧美日韩一区、叭G激光諧振腔內(nèi)日本体内she精3汇编，觀察到了單縱模激光輸出，說明所設(shè)計和加工的液晶F一P標(biāo)準(zhǔn)具具有縱模選擇能力一级一片；將鍍有增透膜的液晶盒插入大功率LD泵浦Nd八7AG激光諧振腔內(nèi)在线观看AV麻豆，是否產(chǎn)生了激光縱模分裂現(xiàn)象還難以確定。

The output power of the amplifier was over 52 W, and the extraction efficiency was up to 41%. The experimental results of the extraction efficiency and output power related to the laser wavelength, input dye laser power and pump beam′s temporal and spatial performance have been given.

給出了染料激光波長xxxx.wwww、注入染料激光功率以及抽運激光的時間和空間匹配特性與染料激光放大器輸出激光功率和抽運激光功率提取效率的相互關(guān)系在线看片免费人成视频久网不卡，討論了染料溶液濃度對雙側(cè)橫向抽運方式的脈沖染料激光放大器的輸出光束質(zhì)量的影響。

The Company's main products are FPC laser cutting machine, SMT laser cutting stencil, PCB laser cutting machine, a series of stencil, such as laser cutting machine.

本公司的主要產(chǎn)品有FPC激光切割機、SMT激光模板切割機人人操天天操老太大逼人人操、PCB激光切割機免费高清无码在线视频、金屬激光切割機、FPC/PCB及非金屬激光切割機一片黄网站、激光焊接800av无码、激光拋光、SMT印刷模板等一系列的激光切割機和焊接機影音先锋av综合资源。

argon laser：氬激光

皮膚科有那些常用的激光 氣化雷射 二氧化碳激光(CO2 Laser) 鉺雅克激光(Erbium YAG laser) 色素激光 紅寶石激光(Ruby Laser) 紫翠玉激光(Alexandrite laser) 銣雅克激光(Nd YAG laser) 血管激光 染料激光(Dye Laser) 氬激光(Argon laser) 除毛激光 長波長

laser gravimeter：激光重力儀,激光重差計

laser gettering 激光吸除 | laser gravimeter 激光重力儀,激光重差計 | laser guidance 激光制導(dǎo)

photorefractive keratectomy：準(zhǔn)分子激光屈光性角膜切削術(shù)

PRK(準(zhǔn)分子激光角膜切削術(shù))全稱是準(zhǔn)分子激光屈光性角膜切削術(shù)(Photorefractive Keratectomy)是指應(yīng)用準(zhǔn)分子激光在角膜前彈力層和淺層基質(zhì)進(jìn)行激光切削,使角膜前表面曲率減少艹屄国内精品流、曲率半徑增加,屈光力減低,焦點向后移至視網(wǎng)膜上達(dá)到矯正屈光不正的效果,

laser beam welding：激光焊

激光焊(Laser Beam Welding)是利用高能量密度的激光束作為熱源的一種高效精密焊接方法激光焊接具有高能量密度可聚焦深穿透高效率適應(yīng)性強等優(yōu)點激光焊接過程屬于傳導(dǎo)焊接,即激光輻照工件表面,產(chǎn)生的熱量通過熱傳導(dǎo)向內(nèi)部傳遞通過控制激光脈沖的寬度能量峰值功率和重復(fù)頻率等參數(shù),

laser diode：激光管

"激光模組"是指含有激光發(fā)光管麻豆视频专区在线、驅(qū)動電路、光學(xué)系統(tǒng)国产欧美三级、外殼及連接件等等部分;已經(jīng)過裝配国产嫖妓合集在线观看、調(diào)整、檢測的功能組件;有人稱之為"激光光源";有人稱之為"激光頭",這些稱呼含義不明或易與激光管(Laser Diode)混淆;我們一般遵循國際上多數(shù)同行的習(xí)慣,

LD：激光發(fā)射管

權(quán)利要求書 1曰木男女一级A片免费视频、一種激光和紫外光驗鈔器,其特征在于,包含一個激光發(fā)射管(LD)和一 個紫外光發(fā)射管(UV LED),所述激光發(fā)射管(LD)和所述紫外光發(fā)射管(UV LED) 通過開關(guān)與電源相連,在所述激光發(fā)射管(LD)與紫外光發(fā)射管(UV LED)的前方 設(shè)置一個光學(xué)透鏡組.

laser microprobe：激光微探測器,激光微探針,激光微探子,激光顯微刀,激光顯微探針

laser micromachining 激光微型加工 | laser microprobe 激光微探測器,激光微探針,激光微探子,激光顯微刀,激光顯微探針 | laser microscope 激光顯微鏡

laser nephelometer：激光比濁計,激光散射濁度計,激光煙霧計

laser navigation equipment 激光導(dǎo)航儀 | laser nephelometer 激光比濁計,激光散射濁度計,激光煙霧計 | laser nephelometry 激光比濁法,激光測渾法

laser nephelometry：激光比濁法,激光測渾法

laser nephelometer 激光比濁計,激光散射濁度計,激光煙霧計 | laser nephelometry 激光比濁法,激光測渾法 | laser night-time reconnaissance device 激光夜間偵察儀

laser schlieren method：激光條紋照相法,激光紋影照相法

laser schlieren apparatus ==> 激光紋影儀 | laser schlieren method ==> 激光條紋照相法,激光紋影照相法 | laser schlieren photography ==> 激光紋影照相術(shù)