激光窗 的英文怎麼說
中文拼音 [jīguāngchuāng]
激光窗
英文
laser window-
V2o5 and vo2 thin films are a kind of outstanding chromogenics, and have a large potential for various applications, such as display devices, light storage devices, optical switch, bolometer, smart - windows and so on
主要應用於顯示器件、光學開關、光存儲、激光保護、輻射測熱裝置等，特別是在智能窗材料方面的應用已成為研究的熱點。Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。Some by - products of this work can be used as routine tools in the uv laser laboratory. commercial video ccd cameras are used to image uv laser and soft x rays, window glass as a fluorescer is used to indirectly measure the uv laser beam profile with high energy density, and a special glass which permits uv light to pass through while absorbs the visible, is introduced into the uv beam profiling in strong visible stray light environment
實驗中發展了一些測量技術，例如用可見光視頻ccd直接測量紫外激光的光束分佈和激光等離子體產生的x光二維圖象，利用窗玻璃作為熒光體測量能量密度較高的紫外光束分佈，利用可見吸收紫外透射玻璃製成的衰減器測量有嚴重背景光的紫外光束分佈，可以作為實驗室的常規測量工具，並有一定的推廣價值。Because of the intrinsic fractional absorption of the laser energy with the conventional solid output windows for high energy lasers ( hel ), the optical quality will be degraded, or the overall hel system cannot run at all when the laser energy are far higher, or the system runs longer time
然而，由於高能激光器傳統的固體輸出窗口具有不可避免的部分吸收作用，因此，當輸出激光功率很高，或激光器長時間工作時，固體輸出窗口就會產生熱畸變、甚至炸裂或被擊穿，從而影響輸出激光的光束質量或使高能激光器根本無法工作。It is used in solar cells and semiconductor detectors for astrophysical research, for x - ray fluorescence ( xrf ) analysis, industrial gauging, nuclear proliferation treaty verifaction et. al, and also in laser window and infrared array technology as subtriate for hg1 - xcdxte
同時它還可作為紅外探測器材料碲鎘汞（ hgcdte ）和外延襯底，以及激光窗口和太陽電池等。With the rapid development of optical fiber communication technology, low - cost and high quality near infrared laser and light emitted diode working at room temperature become widely available. the emit wavelength from these light resource is not only consistent with the three low - decay windows of fiber optics, but also with many wide - frequency or recombination absorption spectrum of environmental and industrial gases
光纖通信技術的發展使相對低價、工作于常溫、高質量的近紅外激光器和發光二極體可廣泛獲得，這些發光光源的發射波長與光纖的三個低損耗窗口相一致，也與許多環境和工業氣體的泛頻或復合吸收譜線相一致。Blue laser is very valuable for military, communication, high - density optical storage, information, colorful display of laser % colorful printing and biochemistry. for example, blue laser of 475nm can be used for seabed research and communication of submarine
藍色激光器在軍事、通訊、信息業、彩色列印、高密度光存儲、激光顯示及生物化學方面有著重要的應用價值，比如說海水的透射窗口落在藍綠色激光范圍內，俗稱「海軍藍」的475nm藍色激光器可成為海地探測和對潛通信的有效手段。Due to the inevitable absorption of crystal window, the crystal window will be distorted even burst while the power of high energy laser apparatus is several hundred thousand watt even mega - watt, so the quality of laser beam will be influenced and the laser apparatus will not work properly
由於晶體材料窗口不可避免的部分吸收作用，對于目前幾十萬瓦甚至兆瓦級的高能激光器來說，晶體窗口會產生熱畸變甚至炸裂，從而影響輸出光束質量甚至使激光器根本無法工作。The rf discharge excited waveguide co2 laser has been the suitable light source of lidar, because of its low volume, high efficiency and the particular wavelength
由於射頻激勵波導co _ 2激光器體積小、效率高、調諧范圍寬、波長正處于大氣透射窗口等獨特優勢，它已成為激光雷達等應用的理想光源。The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。This system can be used for ar, bs, high reflectance mirror, edge filter, bandpass filter, window for laser, telescope film etc
已經在多家用戶成功應用於寬帶增透膜、分光膜、激光器窗口、望遠鏡紅膜等膜系監控。Selective absorption of electromagnetic wave. adw employing gases which do n ' t absorb the laser energy can form a gas urtain " whose pressure of the two sides is equal to the low pressure of laser cavity and the ambient circumstance pressure respectively so it can isolate the higher pressure ambient air from entrancing into the laser cavity and maintain the hel ' s running normally
氣動窗口利用對激光器輸出波長沒有任何吸收作用的特殊氣體作為窗口工作介質，並根據氣體動力學部分相關原理，能生成一個具有與激光腔低壓和環境大氣高壓相匹配的壓力梯度、並把激光器低壓工作介質和外界大氣相隔離的「氣幕」 ，從而保證高能激光器的正常工作。So the conventional solid windows have been becoming the threshold of the laser energy ' s promotion and the optical quality ' s improvements. to solve the above - mentioned problem of hel ' s output solid windows the concept of aerodynamic windows ( abbr. adw ) is proposed according as the property of gas, i. e
由於氣體介質具有對電磁輻射選擇吸收的特性，而且其擊穿功率閾值也特別高，因此為了解決上述高能激光器固體輸出窗口的「瓶頸」問題，根據氣體介質的這一特性，提出了氣體動力學輸出窗口（簡稱為氣動窗口， adw ）的解決方案。The choice of laser output window height is relation to many factors, such as pressure loading, thermal loading, yield stress, influence on wavefront, failure by fatigue. spherical windows can endure higher laser intensity. however, it brings some phaseshifts, which connect with laser windows parameters
激光器輸出窗口厚度的選取與壓力載荷、熱載荷、材料極限強度、厚度對波前的影響、材料疲勞等多種因素有關，由於球殼窗口能承受較高的功率密度，但窗口本身帶來相移，該相移大小與窗口參數有關，根據位相均方根值選擇球殼窗口參數。Firstly, the work principle of staring laser detection optical system is introduced, and the relation between optical antenna ’ s amount and fov in laser warning system of optical antenna array is deduced
首先闡述了凝視型激光輻射探測光學系統的工作原理，推導了光學天線陣列激光告警系統中光學窗口數與光學單元視場角應滿足的關系。High - energy laser system involves an optical train consisting of reflectors and windows, in which temperature increment, stress and deformation may happen because of the absorption of some fraction of the incident laser beam - energy so that the beam quality and transmission of energy to far - field will be affected
高能激光系統中，由一系列反射鏡和窗口組成的「光學鏈」 ，不同程度地吸收部分激光能量，產生溫升、應力和變形，影響光束質量和光能量的遠場傳輸。The reasonability of fadw designing should be proved experimentally, so this paper studies the various running properties of the fadw whose output window ' s size is 30mmx30mm experimentally. it uses the methods of the far - field beam profile measurement, the lateral shearing interferometer ( lsi ) and the hartmann - shack wavefront sensing to measure the window ' s optical qualities when the fadw works in the situations of different inlet total gas pressure
夏克波前傳感器分別對現有的口徑為30mmx30mm的氣動窗口的光學特性和對輸出激光光束質量的影響進行了實驗測量和分析，同時建立了氣動窗口的性能測量的實驗方法，並分析了fadw對輸出激光影響的物理機制（如類透鏡效應等） 。The experiment results are valuable to the research of infrared lens, laser window, integrated optical device, the device for blue semiconductor laser, optical detector, nonlinear device, optical waveguide, thz emitter and other devices the following is a brief summary of the works conducted in this thesis and the results achieved
實驗結果有助於這些材料作為紅外透鏡、激光窗口、集成光學器件，藍光半導體激光器件、光探測器件、非線性光學器件、波導調制器件、 thz發射器件等的研究。Furthermore, as the high - power co2 laser is widely used, especially the development of the research on co2 laser propagating in atmosphere and window material in infrared band, the research on the surface thermal distortion in optical thin film irradiated by 10. 6 m laser is more and more important
而且，隨著高功率co _ 2激光器應用的日益廣泛，特別是國內外有關co _ 2激光大氣傳輸研究工作的進展以及紅外波段窗口材料的研究，使10 . 6 m激光輻照下光學薄膜熱畸變和微弱吸收研究具有重要意義。It is not only the satisfactory substrate used for the epitaxy growth of infrared detector material hgcdte, but also attractive candidates for the manufacture of high quality x - ray or y - ray detectors, photoelectronic modulator, solar cell, and laser windows etc. no matter what the crystal is used as detectors or epitaxy substrate, it is of vital importanteto obtain high quality cdznte crystals with perfect surface
它不僅是生長紅外探測器材料hgcdte最理想的外延襯底，而且還被廣泛用於制備高性能x射線或射線探測器、光電調制器、太陽能電池和激光窗口等。獲得高性能、高質量的czt晶體是至關重要的。無論是作探測器還是作外延襯底等都要求它的表面質量要非常高，因為表面質量會直接影響到器件的性能。分享友人