非對稱光 的英文怎麼說
中文拼音 [fēiduìchènguāng]
非對稱光
英文
asymmetrical beam-
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。Based on the above theory and methods, the main works of this thesis are lasted as follows : starting from the propagation law of partial coherent light and beam coherence - polarization ( bcp ) matrix approach, the properties of pgsm beams through both an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one are studied. the analytical propagation equations of pgsm beams are derived, which enable us to study the propagation - induced polarization changes and irradiance distributions of pgsm beams through an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one
在此基礎上，本文進行的主要工作有：基於空間-時間域中互強度的傳輸理論和bcp矩陣處理方法，首次研究了pgsm光束通過對稱和非對稱abcd光學系統和光闌的傳輸變換特性，推導出了pgsm光束傳輸表達式，可以對pgsm光束偏振和光強的傳輸變化進行分析。A new form generation method for ultra - precision axisymmetric aspheric mirrors is introduced
摘要介紹了軸對稱光學非球面鏡超精密加工的新方法。According to the linear superposition principle of quantum mechanics in this thesis, it is constructed the kind ( ii ) of multi - mode superposition state of differ - intensity of nonsymmetry state superposition state with distinguishable two quantum states light field composed of the linear superposition of multi - mode complex conjugation coherent state of contrary state and multi - mode imaginary conjugation coherent state of contrary state. by utilizing the theory of multi - mode squeezed states
本文根據量子力學中的線性疊加原理，構造了由多模（ q模）復共軛相干態的相反態和多模虛共軛相干態的相反態這兩者的線性疊加所組成的第種強度不等的非對稱兩態疊加多模疊加態光場，利用多模壓縮態理論，對態。High power diode laser array coupling with optical fiber not only make the use of diode laser easier, but also improve the dissymmetry of its output light beam and in the meantime, the output light coupling between the ld sources becomes easier and the power becomes higher
大功率半導體激光器採用光纖耦合輸出方式不僅簡化了器件的應用，改善了輸出光束的非對稱性，同時還可以簡便地實現多個半導體激光器的光源之間的輸出光耦合或組合，得到更高的功率輸出。By analyzing their energy offset on the interfaces, we found that the introduction of ii - vi compounds replaces the original steep barrier with ladder - like barriers. the injection probability becomes the production of two injection probabilities through lower barriers and become larger than the original one. in chapter 5 we want to utilize the deeper, dynamical ( in addition of static ) properties of semiconductor to reinforce the luminescence of oel
為使類陰極射線發光同有機電致發光集成，我們設計了非對稱結構al sioz mnppvn ， mn ppv中的發光是由於從sioz出來的電子和從ld注人的空穴的復合，而由於sioz中的電子的倍增過程，從sioz層出來的電子能量不是單一的，而有一個從低能到高能的分佈。In the design of holographic disc storage system, we first proposed an optimized reflection configuration for sam fourier - transform hologram storage. then we designed and manufactured an asymmetrical fourier transform lens pair, which matched the parameters of slm and ccd and the system requirements. in order to achieve 1 : 1 pixel - matching of high resolution data pages ( 1024 768 ) between slm and ccd, the two lenses were designed and optimized in an iterative manner, and the combination of them reached satisfactory results with eliminated aberrations that can meet the design requirements
首先提出來用於反射式傅立葉變換體全息存儲的空間-角度復用的光路機構，然後按照slm和ccd的光學參數以及系統的工作要求提出傅立葉變換鏡頭的設計條件，為實現在1024 768幅面的1 : 1像素匹配，設計採用非對稱結構的傅立葉變換鏡頭，可以解決slm與ccd像素尺寸相差比較大的問題，使兩個鏡頭的焦距比同slm和ccd的像素尺寸比相等。Investigations showed that one of the most important characteristics of pearlitic materials is the decrease of ratcheting rate, the plastic shakedown capability, and the memory and recovery of the accumulated plastic strain under asymmetrical stress cycles. it was found that the interaction between phases plays an important role in the mechanical behavior of pearlitic materials, such as wearability and contact fatigue life
珠光體材料的重要特性之一是在非對稱應力循環下循環蠕變速率的減緩並趨于塑性安定以及材料對循環蠕變史的記憶與恢復；同時珠光體材料的宏觀力學性能與其細觀結構密切相關，在很大程度上取決于珠光體材料的微結構及其相互作用。Based on the enlarged waveguide y - branch, we introduced the sheared y - branch tir structure. after analyzing the structure parameters of the sheared asymmetrical y - branch, the extinction ratio of the tir optical switch can be more than 40db in theory. by wet erode, we finished photon - induce total internal reflection y branch optical switch with gaas material
在展寬型y分叉的基礎上，提出了隔離型非對稱y分叉全內反射結構，通過對隔離型非對稱y分叉的結構參數的分析，在理論上可以設計出消光比達到40db以上的全內反射型光開光。Low dimensional ii - vi semiconductor structure is one of ideal material for exciton nonlinear optical devices at room - temperature and greem - blue emission devices due to it ' s large exciton binding energy and strong room - temperature exciton effect. thus the excitonic effects in ii - vi semiconductor quantum wells and asymmetric double quantum wells have been studied deeply and widely
特別是-族半導體低維結構由於較大的激子束縛能和強的室溫激子效應，使它有希望成為制備室溫激子非線性器件和藍綠光器件的理想候選材料之一，為此-族半導體量子阱和非對稱雙量子阱的激子效應已被很深入地研究。Asymmertrical intensity distribution
非對稱光強分佈When a smoothing function ' s first derivative is adopted as wavelet function, the local maxima of wavelet transform modulus detect the location of signal ' s singularities, in this thesis, these characters are not only applied to measure the magnitude of dead angles of the dissymmetry inrush but also the symmetry inrush in three - phase transformer
當小波函數取光滑函數的一階導數時，信號小波變換的模在信號突變點將取得局部極大值。本文利用這些性質不僅對三相變壓器的非對稱性涌流間斷角的大小進行測量，同時還測量了對稱性涌流的間斷角，測量精度有一定的改善。Based on the optical theory of planar wave - guide, this paper analyzes the transformation of pattern from symmetrical wave - guide to asymmetrical wave - guide. and the result shows that some patterns will radiate from the wave - guide when applying an external force on the sensor
論文以平面光波導的幾何光學理論為基礎，分析了光波導從（ n0 - n1 - n0 ）對稱波導向（ n2 - n1 - n0 ）非對稱波導轉變中導波模式所發生的變化。Fibre optic communication system design guides - part 6 : skew design in parallel optical interconnection systems
纖維光學通信系統的設計指南.第6部分:并行光學互連系統的非對稱設計Theoretical analysis and results of computer simulation show that the proposed method is not only feasible but also simple comparing with classic method. secondly, in connection of hidden danger in security due to symmetric system, a novel encoding techniques is proposed with spherical wave illumination based on asymmetric system
其次，針對現有光學加密系統的對稱性給系統安全性能所帶來的隱患，在4f系統的基礎上，不增加系統元件的情況下，提出了一種用球面波照射非對稱準傅立葉變換系統進行光學圖像加密的新方法。Broadband access technologies such as asymmetric digital subscriber line ( adsl ), fibre to the building ( fttb ), local multipoint distribution service ( lmds ), asynchronous transfer mode ( atm ) and cable modem are becoming more popular in hong kong
非對稱數碼用戶線路（ adsl ） 、光纖入廈（ fttb ） 、本地多點配送系統（ lmds ） 、異步傳輸模式（ atm ）及有線電視數據機等寬頻接入技術在香港日趨普及。Matrix decomposition and equivalent transformation of nonsymmetrical optical systems
非對稱光學系統的矩陣分解與等效變換Convergence is accelerated by means of local time stepping, implicit residual smoothing. the numerical results have been obtained for the flows over n ac ago 12 or rae2822 airfoils
並且基於點雲離散結構，引入了當地時間步長、殘值光顧等加速收斂技術，數值模擬了對稱和非對稱翼型繞流，獲得較好的計算結果。Agrawal ' s theory model of soa ca n ' t simulate accurately the amplified signal pulse shape in soa when the pulse width is as short as several picosecond. so we simulate accurately the peak power, full width half maximum, rising time and falling time of amplified pulse after considering the gain compression, gain asymmetry, gain shift, gain variable with situation and time. with ultrahigh velocity dense wavelength division multiplexing ( dwdm ) and optical time division multiplexing ( otdm ) developing, we demand more and more short signal pulse and more signal channels
但當信號脈沖的寬度只有幾個皮秒時， soa傳統的agrawal理論模型已經不能完全準確地模擬soa對信號脈沖的放大情況，在此基礎上，我們在全面考慮soa的增益壓縮、增益非對稱和漂移、增益隨位置和時間變化的載流子壽命等物理機制的情況下，對皮秒超短高斯信號光脈沖經soa放大后的脈沖的峰值功率、脈沖半值全寬度、脈沖的上升時間和下降時間等重要物理參量進行了準確模擬和詳細研究。It also has stronger hydrogen bond which can result in partly physical crosslinkage in polymers, which can fasten orienting of chromophore. all these benefit to obtain high nlo coefficient. in chapter one, some basic conceptions about lc and the advance in lcpu are described, especially the synthesis methods on lcpu and the influence factors of lcpu formation liquid crystalline phase
聚氨酯液晶是分子排列具有一定取向的聚合物材料，可為非線性光學聚氨酯提供一種較好的非對稱取向的介質環境，聚氨酯中還存在較強的氫鍵作用，使得聚合物材料有部分物理交聯，能固定發色團的取向，這些因素有利於獲得較大的非線性光學效應。分享友人