laser frequency 中文意思是什麼
laser frequency
解釋
激光頻率-
Under the incentive of the civil - market demanding such as laser material processing and the military - market demanding such as a new generation of laser weapon candidate and icf, diode - pumped solid laser ( dpsl ) develops rapidly worldwide. as an important application, diode - pumped intracavity - frequency - doubled laser is attached much importance in recent years, but there still remain many problems unresolved completely. in this paper, i have given some abecedarian study results on some of these problems theoretically and experimentally
因工業激光材料加工等民用市場的需求以及慣性約束聚變和作為新一代激光武器候選器件等軍方需求的推動，國際上高功率二極體泵浦固體激光器（ dpsl ）的研究進展迅速，作為dpsl的一個重要應用，內腔倍頻一直得到大家的重視，但仍有許多未徹底解決的問題和理論上的不完備之處，本論文擬對其中的一些問題作一初步的理論和實驗研究。 -
Effect of beat frequency on the measured phase of laser - diode heterodyne interferometry
斜波調頻合成外差干涉相位檢測非線性分析 -
The ring laser gyro ( rlg ) is a new photoelectric inertia sensor based on the optic interference theory. it uses the difference between the frequency of the two beams of light, which run in the opposite direction in the resonant cavity, to measure the carrier ’ s rotate speed and the orientation in the inertial space
環形激光陀螺儀（ ringlasergyro ，簡稱rlg ）是以光學干涉原理為基礎發展起來的新型光電慣性敏感儀器，它利用環形諧振腔內順、逆運行的兩束光的諧振頻率差來測量載體對于慣性空間的轉速和方位。 -
Numerical simulation and experimental research on 589 nm laser frequency - summed by lbo
激光的數值模擬及實驗研究 -
With the development of laser techniques, the optical cavity has played an important role on monitoring laser mode, measurement and narrowing of laser linewidth, laser mode cleaner, laser frequency stabilization, optical spectrum and cavity - qed etc., due to its advantages of ultra - low losses, high finesse and narrow linewidth
隨著激光技術的發展，諧振腔由於其腔內損耗小、精細度高、線寬窄等特點，使得其在監視激光模式、測量並壓窄激光線寬、激光模式清潔、激光穩頻、激光光譜學、腔量子電動力學等方面起到重要的作用。 -
So qpm enlarge the application range of the crystal in existence. presently diode pumped all - solid - state lasers have been developing quickly, which provides an ideal pump source for qpm. so lower power all - solid - state laser frequency conversion by qpm has been becoming a research focus
近年來，隨著激光二極體（ ld ）技術的發展，小功率全固態激光器已經十分成熟，為準相位匹配提供了優質的泵源，因此，小功率全固態激光器的準相位匹配頻率變換成為目前的一個研究熱點。 -
Utilizing quasi - phasematched ( qpm ) technique to achieve a given useful laser frequency conversion is a practical and challenging topic
利用準相位匹配（ qpm ）技術在光學超晶格中實現特定的可實用化的激光頻率變換，在目前是一個富有實際意義和挑戰性的課題。 -
Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions. the ray path in plasma was calculated by the numerical solution of the vector equation of light ray, when the plasma density was closing to the critical electron density of the laser frequency. through the simulations, the factors that influence the measurement were found out under different density distributions and shapes of plasma
在此基礎上，採用數值模擬的方法，計算了在幾種典型的等離子體密度分佈下，激光波面的變化和產生的干涉圖樣；並用光線矢量微分方程的數值解法計算了當等離子體密度接近光頻臨界電子密度時，光線在等離子體中的傳播路徑，從中掌握了在不同的等離子體密度和形狀下，進行干涉測量所應估計到的因素。 -
The concept of viffoal laser frequency stabilizaion is put fowi. the frequency stabilizaion at the center of doppler curve has been realized aller signal detecting, phase sensitive detecting, integrating and high voltage amplifying circuits with fm spectroscopy a frequency stability of l0 -, has been obtained with a reproducibility of l0 - 9. hyperfine spectra of, ', i, near 532nm have been studied via modul8tion tfansfer spectroscopy
利用fm光譜法將激光單次通過碘吸收室進行線性吸收，再經信號檢測、混頻、積分和高壓放大等伺服電路，實現了在多普勒曲線中心處的頻率穩定，頻率穩定度和復現性可達10 ~ （ - 9 ）量級。 -
Recently, laser frequency standards have developed rapidly
近年來，激光頻標得到了迅速發展。 -
The frequency of the slave laser is not locked to the master laser when the polarization direction of the injected laser is perpendicular to the polarization direction of the slave laser which is free - running. the slave laser frequency shifts toward low frequency because of thermal effect in the slave laser cavity induced by the injected laser
當注入光偏振方向與從激光器輸出光偏振方向垂直時，從激光器頻率不會被鎖定到主激光器頻率上，但由於外部光注入引起的從激光器腔內熱效應，使得從激光器頻率向低頻方向移動。 -
The definition of stability and repeatability of the laser frequency and factors affecting the stability of laser frequency were analysed. the normal methods used to stabilise frequency and produce double - frequency were explained. after analysing the working conditions and related parameters of the laser device, it was concluded that the laser tube should be put inside an insulating cover and an electric discharge tube with a bigger diameter and length, smaller wall thickness and a higher thermal conductivity coefficient should be chosen
分析了激光頻率的穩定性、復現性的定義及影響激光頻率穩定的因素；介紹了常見的穩頻及產生雙頻的方法；分析論證了激光器雙縱模熱穩頻的使用條件和有關參數的關系，得到結論是：應將激光管裝在保溫罩內；選用放電管直徑及長度大、壁厚小、材料導熱系數大的放電管。 -
This paper describes the important breakthrough of laser frequency measurements technology since 1999, i. e. the absolute frequency value of laser frequency standards can be directly measured by femtosecond modelocked laser
摘要簡述了自1999年以來激光頻率測量技術出現的重大突破，用飛秒鎖模激光可以直接測量激光頻標的絕對頻率值。 -
It presents the mathematical models for the ppm modulation and demodulation circuits system. author gives out the conditions of linear modulation and demodulation, and educes its connection between the modulation factor and maximal laser frequency excursion
建立了ppm調制與解調的數學模型，給出了實現線性調制與解調的條件以及調制深度與最大激光頻率偏移之間的關系。 -
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。 -
Look back the history of laser frequency conversion and present the present situation and the trend of quasi - phasematched ( qpm ). 2
1 、回顧了激光變頻的歷史，著重介紹了準相位匹配及其材料的研究現狀及發展方向。 -
After obtaining optimized laser frequency 5hz accepted - pulse - times 10 / second by experiments, laser power density increased little by little is focused on study
實驗在優化頻率為5hz ，受光次數10次秒時，重點研究了激光能量密度由小到大對晶化性能的影響。 -
The main results and creative points in the dissertation were as follows : a ) by means of studying on the fiber - optic hydrophones ’ tdm array based on phase generated carrier ( pgc ) demodulation with laser frequency modulation, the mathematic models were set up, used for theoretical analyses of noncoherent crosstalks in the system using low coherent laser and coherent crosstalks in the system using high coherent laser. the formulas calculating crosstalks were given, and the method measuring crosstalks was shown definitely
本論文的主要研究結果和創新在於: 1 、通過對基於光頻調制pgc （相位生成載波）解調光纖水聽器時分復用系統的研究，針對低相干光源的串擾強度迭加和高相干光源串擾的相干迭加，建立了理論分析的數學模型，得出了計算串擾的公式，明確了測試系統串擾的方法。 -
This thesis first introduces the basic theory used in fog, and then analyses the resonator - one of the key parts. this analysis illustrates the output character under certain laser frequency width. the output character is converted into lorentz function form considering the laser frequency width
本文首先介紹了諧振式光纖陀螺的基本原理，對其關鍵器件- - -諧振腔的諧振特性做了分析，重點分析了在激光器頻寬一定的條件下諧振腔的輸出特性，並最終將其轉化為包含了激光器頻寬的洛倫茲函數形式。 -
Because p - si is of more special characteristics, comparing to a - si and c - si, firstly, i set forth electrical features of p - si film and acknowledge profoundly electrical mechanism of p - si film. then three parameters of laser annealing, including laser frequency -, accepted - pulse - times and laser power density are studied how to influence crystallization of p - si
因為多晶硅和非晶硅及晶體硅相比具有更獨特的特點，所以我們先闡述了多晶硅薄膜的電學特點，對多晶硅的導電機理有了深刻的了解；然後研究了激光頻率、受光次數和激光功率密度三個參數對晶化多晶硅的影響。
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