incident beam 中文意思是什麼

The electron range increases with decreasing atomic number and increasing incident beam energy e0.

電子射程隨著原子序數的減少和入射束能量E0的增加而增加。

And it is also found that the polarized incident gauss beam become depolarized after emitting from the bottom of solid immersion lens. the beam dimension of the emitting optical field at the near - field bottom of solid immersion lens is " broadened "

在固體浸沒透鏡底面的近場區域，出射光場發生了退極化，使得出射總場的光斑有了一定程度的「增寬」現象。

Our study shows that the optical potential of the diffracted light of the semi - gaussian beam is far higher than that of the evanescent - light wave, and its maximum normal velocity of the incident atoms can be far grater than that of the evanescent - light wave under the same parameters, so the blue - detuned semi - gaussian beam, as a novel atomic mirror, can be used to efficiently reflect atoms with a normal velocity of greater than 1 m / s

研究表明，半束蘭失諧高斯光束衍射光場的光學勢遠大於消逝波光場的光學勢，在同樣的參數條件下，入射原子的最大速度也比消逝波光場的大，所以作為一種新穎的原子反射鏡，半束蘭失諧高斯光束可以被用來有效的法向速度大於1m s的入射原子。

Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed

文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，並研究了掃描遠場的非對稱性。

According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。

The incidence angle of laser beam and other factors have been found to result in more effective polishing, with optimal best smoothing observed at incident angles of 75 ?

探討了激光切割和拋光金剛石膜的基本規律，詳細探討論述了激光的工藝參數對拋光效果和拋光效率的影響。

Simulation calculation for the energy deposition profile and the transmission fraction of intense pulsed electron beam at various incident angles

不同入射角度下強流脈沖電子束能量沉積剖面和束流傳輸系數模擬計算

In the section of fabricating technology, i first discuss the ion beam technology. through the analysis of the effects of each parameter on the surface smoothness, profile fidelity and linewidth resolution in the process of ion etching, the suitable angle of incident ion beam, ion energy, density of ion beam and time of etching are selected combining the actual status of the mask

在製作工藝的研究方面，首先研究了離子束刻蝕技術，通過對離子束刻蝕過程中各個參數對刻蝕元件的表面光潔度、輪廓保真度和線寬分辨的影響分析，結合掩膜的實際情況選擇出了合適的離子束入射角、離子能量、束流密度和刻蝕時間等參數。

Especially in high power laser applications, absorption can cause thermal distortion to optical components, then change the transmission characteristics of the incident beam, and also lower the laser induced damage thresholds ( lidt )

尤其在高功率激光作用下，吸收損耗不僅會引起光學薄膜元件的熱畸變，影響激光傳輸特性，還會降低薄膜的損傷閾值。

According to the principle of a new scanning electron microscope and the mechanism of the interaction between electron beam and solid target, the trajectories of an incident electron in a sample are simulated, a simulation program is compiled using the monte carlo method, and the backscattering coefficients corresponding to different parameters of the sem are obtained

摘要根據新型分析掃描電子顯微鏡的工作原理及載能電子束和固體相互作用原理，利用蒙特卡羅方法模擬入射電子和靶物質的相互作用過程，編制了蒙特卡羅模擬計算程序，獲得了對應不同電鏡工作參數的入射電子背散射率。

When installed in a crowded environment sensing light or dark the ministry of precision incident, to be seen beam

當在擁擠的安裝或昏暗的光線環境下感測精密部件時，可對中可見光束。

On the basis of theories of physics, geometrical optics and photometry, the optical properties of collimated light beam incident upon single fiber perpendicular to the fiber axis are studied. by exploring the behaviors of reflected light and transmitted light from single fiber, the distribution of the light is described and the proportionalities between the intensity of the reflected, transmitted and scatered light are obtained respectively, and the different laws governing the intensity of diffused light and transmitted light from single fiber between near and far field are discussed. experiments demonstrate that the decrease of projecting light in far field is in direct proportion for the increase of fiber diameter, which serves as the theoretical basis for a series optics equations, as well as for the designment for photoelectric deviccs for detecting fibers

結合物理學的基本原理和幾何光學的基本規律以及光度學的基礎理論等三方面，研究了單纖維在平行均勻光束垂軸入射時的光學性質.分析了單纖維反光和透光的特徵，光強分佈及反射光、透射光和散射光的相對大小;討論了在近場和遠場條件下，漫反射光和透射光光強的不同規律;通過實驗驗證了遠場時，纖維的漫射光強度與纖維直徑成正比的關系

This paper designs an optical system based on above to measure the small angle of the laser beam. a non - polarized beam splitter ( npbs ) is used to split the incident beam into two branches, and a rhombic prism agglutinated by two right - angle prisms is placed to realize total internal reflection twice in each branch. it not only improves the measurement sensitivity and linearity, but also increases antinoise ability by the differential optics

本文正是基於這一原理設計了測量光束微小偏轉角的光路系統，用消偏振分光棱鏡將入射光分為兩路，並在兩路分別用兩個直角棱鏡組成的斜方棱鏡來實現兩次全內反射，不但提高了測量靈敏度和線性，還利用差分光路的特點提高了抗干擾能力。

In addition, average angular information is taken from adjacent segments and the incident ion beam.

另外，可以從鄰近線段和入射離子束取得平均角度的信息。

Research on the scattering of an incident gaussian beam by a rough dielectric surface

粗糙介質面對光波束的散射理論

The electron range increases with decreasing atomic number and increasing incident beam energy e0

電子射程隨著原子序數的減少和入射束能量e0的增加而增加。

In optical fiber aspect, the incident beam can be collimated, converted and focused by some kinds of lenses, making the mode of incident beam matched with or near the optical fiber ’ s modes. in this thesis, thorough theoretical analyses and experimental investigations were made for the external optical properties of a 980nm high - power tunnel junction regenerated multi - active - region quantum well stripe - geometry algaas / gaas / ingaas ld and three different stripe - width 980nm high - power

本論文圍繞本實驗室研發的新型隧道再生多有源區980nmalgaas / gaas / ingaas量子阱大功率半導體激光器和多種條寬的單有源區980nmalgaas / gaas / ingaas量子阱大功率半導體激光器的光場外特性、單模階躍折射率光纖和多模漸變折射率光纖的模場特性進行了深入的理論分析和實驗研究。

Compared with the 3 - d theoretical model that was obtained when the incident laser was gaussian beam, the 1 - d one that was obtained when the incident beam irradiated equably the sample was defective

假設入射光均勻輻照樣品所得的一維模型，與入射光為高斯光得到的三維模型進行比較，發現一維模型的不足。

In photorefractive crystal light illumination changes the refractive index of the crystal due to linear electrooptical effect, which in turn changes the light distribution. as a result of the development of this process, a beam, called the phase conjugation wave, leaves the crystal back along the direction of the incident beam and is its phase conjugate replica

光折變晶體在光輻照下，通過晶體中的線性電光效應而產生折射率隨光強的空間分佈而變化，即在晶體內建立起體相位柵。

The fundamental principle of this system is as follows. divide the incident beam into two beams, one of which passing through variable optical delay ( vod ), then combination of the two beams with the same amplitude and delay - superposition is sent to bi - photon detector and transformed into current signals, whose intensity is proportional to the intensity of bi - photon autocorrelation signals

本系統的主要原理是:把入射光分為兩束，讓其中一束光通過一個可調光纖延遲線，再把這兩束具有相同幅度並延時重合的光合路後送進雙光子探測器，該探測器同時吸收兩個光子發生雙光子效應從而產生電流信號，且其大小與雙光子自相關信號的強度成正比。