激光熱解 的英文怎麼說
中文拼音 [jīguāngrèjiě]
激光熱解
英文
laser purolysis-
In the surface processing of pyrolytic graphite grid, we had done mainly in completely to clear all kinds of ordures, impurities and grime block which was born in the laser cutting process of the grid
在熱解石墨柵極處理方面，主要為完全清除激光加工過程中產生的各種污物、雜質及垢塊，保證熱解石墨柵極內外表面的清潔度。Observation of the on - off sequencing of characteristic spectral lines from tracer materials arranged in layers in, or surface patterns on, planar or spherical targets can provide a record of radial or lateral energy transport processes in laser - generated plasmas
測量激光聚變靶產生的軟x射線時間變化連續譜的形狀，可以知道許多x射線產生過程的詳細動態記錄，這有助於理解實驗的熱學條件。觀察軌跡特徵譜線的閉合序列，能提供關于激光等離子體激發能量和滯后能量的傳輸過程記錄。Laser induced diffusion is a technology that dope the impurities into a certain region of semiconductor by a focused laser. it has the advantages of “ low temperature processing ” and ” direct writing ”, and it is promising to use this technology in the fabrication of monolithically optoelctronic integrated circuits ( oeics ) to solve the incompatibility problem between optoelctronic and electronic components
激光誘導擴散是用聚焦的激光束局域加熱半導體基片，將雜質以擴散的方式摻入到特定區域並且達到一定要求的一種技術，具有「低溫處理」 、 「直接寫入」 、 「局域升溫」等獨特優點，可有效解決單片光電集成器件（ oeics ）中光、電兩部分的工藝兼容這一難題。High power diode laser is the requirement to research on the high - average - power diode - pumped solid - state lasers, so the package techniques of the diode laser is studied first in this thesis
高功率二極體激光器是開展高平均功率dpl研究的必要條件。本文首先研究了高功率二極體激光器封裝技術，二極體條散熱冷卻是高功率二極體激光器封裝要解決的核心問題。At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。Quantum capture is a complicated process and capture time computation and experiment test are provided. it is difficult to ascertain carrier ' s transportation and distribution in multiply quantum wels and tunneling time and heating emitting time computations are also provided. optical gain whose formula is complicated is a critical parameter and it is useful for structuring model to obtain a concise formula by means of experiment curve
詳細說明了確定半導體激光器速率方程的一些重要參量的方法，如：載流子在三維sch區的輸運行為對激光器的調制特性有較大影響；量子阱對載流子的捕獲是一個復雜的過程，文中給出了量子捕獲時間的計算方法以及實驗證明；多量子阱中載流子輸運與分佈也是相當復雜的問題，文中給出了隧穿時間與熱發射時間的計算方法；光增益是關鍵的參量，它的解析式相當繁瑣，由實驗曲線擬合其較為簡明的經驗式，對定模工作是有利的。This paper establishes a simple physical model of the non - linear temperature field of the metal material heated by monopulse laser and makes an analytical study on the physical model. the modeling results are basically in agreement with those of experiments
建立了單脈沖激光加熱下金屬材料非線性溫度場的簡單物理模型，並進行了解析研究，所得結果與實驗結果基本符合The peak in the direction of the target normal is consistent with mat of predicted by the resonance absorption and another peak of hot electrons emission in the specular reflection direction is due to the multi - acceleration mechanisms. the hot electrons emission along the back - reflection direction is probably caused by the acceleration of the back - reflection laser, which is for the first time put forward by us
其中，靶法線方向的超熱電子發射峰與共振吸收（ res ~ eabso甲tion ）機制所預言的一致;根據理論估算提出激光反射方向的超熱電子發射峰是幾種加速機制共同作用的結果;我們首次提出背反射激光加速超熱電子的新機制，並用此機制解釋了激光背反射方向產生的超熱電子發射峰。For getting temperature of transient thermal - radiation, lodging the method of measuring the temperature of the time - resolved thermal - radiation with least duple multiply theory, and measuring the temperature of wu lamp with this method, the results showed that the method have best properties for measuring temperature, and measuring the temperature of time - resolved spectrum of matter under pulse laser shocking with this method, getting the primary results
為了解析瞬態熱輻射溫度，提出用最小二乘法對由多道分析器採集的時間分辨熱輻射譜進行全譜溫度擬合的方法，在以鎢帶燈為輻射源的溫度測量中實現了較高精度的溫度擬合，用此方法對激光沖擊靶材所產生熱輻射的時間分辨譜溫度進行測量，得到了初步結果。The heat sources are analyzed in theory and calculated under some hypothesis. a thermal conductive model is built and by solving the model equation, the numerical values of the 1 - active region laser, 2 - active region laser, 3 - active region laser and 4 - active region laser are obtained. the dynamical temperature distribution plots are obtained, too
在一定的假定條件下對其內部的熱產生率進行了定量計算，並分別針對一、二、三、四有源區激光器建立了熱傳導模型，得出數值解，畫出激光器內部瞬態溫度分布圖，推導了激光器連續工作條件。We calculate the stress fracture limit, critical index limit and melting limit in a high power double clad fiber laser. the results show that the average output power decreases when the temperature is too high. to maintain the pumping efficiency and the output power, some cooling methods should be used when the output power reaches a certain level
給出了熱效應對雙包層光纖激光器影響的裂解極限、臨界折射率極限和熔化極限與光纖結構參數和泵浦功率的表達式，理論分析和數值模擬結果表明對于高功率的雙包層光纖激光器溫度很高時激光增益下降，在一定的功率水平上需要進行外界的冷卻，以保證泵浦激光的效率和高功率的激光輸出。It is found that the effects of the latent heat are not negligible in the laser cladding process and their errors depend on the temperature range during phase transformations and the size of melted material region
計算結果表明，在激光塗敷過程的溫度場分析中，潛熱的影響不是總可以忽略的，其誤差取決于材料在物相轉變時交界面溫差的?圍及材料熔解體積的大小。Thermal dynamical graphic analysis of a z type solid laser resonator
型固體激光腔熱動力圖解分析Starting with automation system, this paper, firstly, outlines the status of sensor lying in automation field and its developing state, shows the superiority about eddy current test by comparing it with the other nondestructive tests, expatiates the modern developing state about eddy current technology both here and there, shows the vista about eddy current test in our country and the background of the subject about the test for the width and thickness of stripe in the in - wall of cylinder after laser thermal treatment. secondly, beginning with maxwell equation in electromagnetic field theory and combining with some electromagnetic phenomena in real life, this paper explains qualitatively the operating principle about eddy current technology and the test theory for multi - parameter test with multi - frequency by math illation and gives some applying occasions about it
通過同其它幾種無損檢測技術的比較，給出了電渦流技術的優越性，闡述了國內外電渦流技術的發展現狀，展望了我國電渦流技術發展的未來，給出了汽缸內壁激光熱處理條紋厚度與寬度的檢測這個課題的背景；然後從電磁場理論中的麥克斯韋方程出發，通過一系列的數學嚴密推導，並結合現實生活中的一些電磁現象，定性地解釋了電渦流技術的原理，以及電渦流傳感器多頻率多參數的檢測原理，給出了電渦流技術的部分應用場合，以及電渦流檢測的等效電路。Laser pyrolysis gas chromatography
激光熱解氣相色譜法Abstract : this paper describes the thermal effects of a coaxial rf - excitedco2 laser ， based on the balance equations of electron density and energy ， current continuity equation ， and heat conduction equation. depende ncies of the spatial distributions of gas temperature on some discharge parameters arediscussed
文摘:通過求解放電等離子體中的帶電粒子密度和能量的平衡方程、電流連續性方程以及熱傳導方程，研究了同軸射頻（ rf ）激勵co2激光器中放電混合氣體的溫度效應，分析了有關放電參數對溫度分佈的影響。It avoids the disturbance of the constant current source by improved constant current source method, with high precision and nice resolving power. the circuit has wide application with simple structure, low cost, low power dissipation and small. it can be used in the precise temperature measurement and control systems, such as laser diode
用改進的恆流源法測量熱敏電阻的阻值，有效地克服了恆流源的干擾，測量精度高，測量解析度可達0 . 01 ，測溫準確度可達0 . 5 ;並且該電路結構簡單，成本低、功耗小、體積小、具有很高的實用價值，可用於需要精密測溫與控溫系統中，如激光二極體的溫度控制中。Ld - pumped nd : yag, lbo ( type - i critical phase matching ) intracavity frequency doubled, blue laser at 473nm was obtained finally. under the condition of 14w pump power, high power tem00 mode blue laser at 473nm of 1. 1w was obtained. by means of inserting diaphragm into cavity, the power fluctuation and beam mode were improved ; in the experiments, the proportion of special mode matching in quasi - three - level laser was discovered, and the phenomenon were explained reasonedly
實驗上採用對熱效應不敏感的三鏡折疊腔， ld泵浦nd : yag ，類相位匹配lbo作為倍頻晶體，獲得了1 . 1瓦的連續473mn藍光輸出；採用腔內插入光闌的方法，有效克服了功率抖動，同時改善了光斑模式；實驗中發現準三能級激光器存在兩個空間模式匹配比例關系，並對這一現象給出了合理的解釋。As the globally strategic partner of the air products and chemicals, inc. ( hereinafter referred to as “ ap ” ), it will provide the choice gases and technical solutions to such photo - electron fields as optical fiber, flat - panel display and laser gas as well as such industries as metal heat - treatment, glass and food processing
作為美國氣體化工產品有限公司（簡稱「 ap 」 ）的全球戰略合作夥伴， 「久策氣體」將為光纖、平板顯示器、激光氣等光電子領域和金屬熱處理、玻離及食品行業提供最優的氣體及技術解決方案。Semi - analytical thermal analysis of single end - pumped laser crystal temperature distribution
單端泵浦激光晶體溫度分佈的半解析熱分析分享友人