gaussian laser beam 中文意思是什麼
gaussian laser beam
解釋
高斯激光束-
When a collimated - well gaussian laser beam passes through a 27i - phase plate and then focused by a lens, a focused hollow beam ( fhb ) will be generated behind the lens, as a result of the completely ( r = 0 ) and partially ( r 0 ) destructive interference effects around the central region of the beam
當一束準直的高斯光束通過具有2位相分佈的位相片和一個薄透鏡時，這將導致在入射高斯光束中心的完全和部分相消干涉效應，於是在透鏡后就會形成一束聚焦中空光束（ fhb ） 。 -
A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied
本論文在激光光束波前畸變檢測和控制上進行了新的探索，主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究，其研究的內容和取得的成果如下：一、根據標量衍射理論，結合低頻波前畸變的高斯隨機位相分佈模型，研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響，並採用描述中頻段波前畸變的功率譜密度概念，模擬計算了它對激光焦斑旁瓣的貢獻。 -
In former stl instruments, a laser beam with a gaussian distributed intensity was commonly used as the excitation source. nevertheless, the output of a high power laser is usually a superposition of multi - modes rather than a gaussian distribution ( tem00 ). therefore, it is very convenient to add an aperture to get a top - hat beam
以前的表面熱透鏡裝置中，多使用高斯光束作為激勵光，但由於高功率激光器一般為多模輸出，要獲得嚴格的基模高斯光束比較困難，而平頂光束可以通過在激光器前加一定大小的光闌實現，降低了對激光光束質量的要求，更有利於實際的測量。 -
However, in fact, a laser beam is hermit - gaussian in general and gaussian in its fundamental mode
而實際土激光光束近似為厄米一高斯光束或拉蓋爾一高斯光束，其基模為高斯光束。 -
When the laser frequency is larger than the atomic resonance frequency ( blue detuning ), the atoms will experience a repulsing force that will repulse the atoms to the minimum place of light field. this is the principle of atomic mirror or atomic guide and trap. in this thesis, we propose three novel mirrors to reflect atoms by using intensity gradient induced by a blue - detuned semi - gaussian laser beam, a blue - detuned semi - ellipse - gaussian laser beam and a blue - detuned semi - flattened - gaussian laser beam
本文提出了三種實現原子束反射的原子反射鏡的新方案： （ 1 ）半束蘭失諧高斯光束的原子反射鏡（ 2 ）半束蘭失諧橢圓高斯光束的原子反射鏡（ 3 ）半束蘭失諧平項高斯光束的原子反射鏡，詳細計算了上述反射鏡的衍射光場的空間分佈，並討論了運動原子在光場中所受的偶極力。 -
Applying the standard gaussian beam abcd matrix propagation theory, the parameters selection and the corresponding performances of a laser - guide - star emission system are presented theoretically. in received system, the light route matching problems of the micro - lens array and ccd, collimating lens are considered. the performances of seven - aperture and multi - aperture lens arrays are measured by he - ne laser beam
採用高斯光束標準abcd傳輸矩陣理論設計了發射系統參數，討論了不同參數的微透鏡陣列和準直透鏡、 ccd的光路匹配問題，並用he - ne激光束檢測了七孔徑和多孔徑透鏡陣列的工作性能。 -
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。 -
Starting from the propagation law of partially coherent light and using a typical partially coherent light, i. e., gaussian schell - model ( gsm ) beam describing the multimode laser in practice, i present in this dissertation the research results on vectorial partially coherent light, spectral changes of partially coherent light passing through optical element, spectral switch of partially coherent light diffracted by an aperture, and the spectral anomaly of diffracted fully spatially coherent light by an aperture
本文從部分相干光的傳輸理論出發，以模擬實際多模激光的一類典型部分相干光? ?高斯-謝爾模型（ gsm ）光束為主要研究對象，對矢量部分相干光、部分相干光通過光學元件的光譜變化、被光闌衍射的部分空間相干光的光譜開關和被光闌衍射的完全空間相干光的光譜異常等現象進行了深入研究。 -
The binary optical elements are small, light, easy to be copied and able to realize multi - purpose integrated, especially suits for the beam shaping of laser diode array, thus make us choose it for realizing our system. because single module gaussian beam can be decomposed in a pair of vertical directions, we transform each pair of vertical beams outputted by bars separately, this can make our design easy to achieve
可實現多功能集成等特點，特別適用於半導體激光器列陣的光束整形，因此我們選用二元光學器件來實現耦合系統?利用半導體激光器輸出的基模高斯光束可分離變量的特點，我們對面陣中各吧的兩個相互垂直方向上的光束分別進行整形變換，這樣整形器件可以設計成一維結構，便於實現 -
Analysis for the force exerted on a micro - particle in the focused gaussian laser beam
微粒在會聚高斯光束中的受力分析 -
In the model, the latent heat, convection and temperature - dependent thermal properties were taken into account. a moving gaussian laser beam was simulated using the ansys parametric design language. comparisons were made between the numerical and experimental results
在考慮了相變潛熱、對流和隨溫度變化的熱物性參數下，使用apdl參數化語言實現了高斯熱源的施加和熱源按一定速率的移動。 -
First, we propose a novel and simple mirror to reflect atoms by using intensity gradient induced by a blue - detuned semi - gaussian laser beam. the diffraction characteristics of an incident gaussian beam by straight edge bounding a semi - infinite opaque plate are investigated from kirchhoff scakr wave theory in the fresnel limit
本文首先提出了採用半束蘭失諧高斯光束的原子反射鏡方案，研究了在fresnel衍射下入射高斯光束被半無限大不透明平板擋去半邊后的直邊kirchoff衍射特性。 -
In order to obtain the laser beam with better beam quality, less spot diameter and higher power density in laser manufacturing ( lm ), gaussian beam used in lm was transmitted and transformed
摘要為了獲得光束質量較好、光斑尺寸較小、功率密度較高的、適合激光加工的激光束，對激光加工中的高斯光束進行傳輸與變換。 -
The results show that the laser energy is relatively concentrated while using gaussian beam, but the lateral transport area is limited
結果表明：與均勻光束比較，高斯光束輻照時，激光能量較為集中，但側向傳播范圍較窄。
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