激光發射體 的英文怎麼說
中文拼音 [jīguāngfāshètǐ]
激光發射體
英文
lasing light emitter- 激 : Ⅰ動詞1 (水因受到阻礙或震蕩而向上涌) swash; surge; dash 2 (冷水突然刺激身體使得病) fall ill fr...
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 發 : 名詞(頭發) hair
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 體 : 體構詞成分。
- 激光 : [物理學] laser 激光靶 laser target; 激光報警器 laser avoidance device; 激光玻璃纖維 laser fibre; ...
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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。Zno is a directed band semiconductor with a big binding energy. it has gained substantial interest because its large exiton binding energy ( 60mev ), which could lead to lasing action based exiton recombination even above room temperature, such as led, ld and so on
Zno是一種寬禁帶的直接帶隙半導體材料,具有非常高的激子束縛能( 60mv ) ,即使在室溫條件下激子也不會分解,因此可以被用作光發射器件,如led和ld等。The hardware mainly included the emitting circuit of the laser light, receiving circuit and high speed data acquisition circuit
硬體部分包括激光發射電路、回波接收電路,高速數據採集電路等。By shining laser light on a part of the hologram, an unfolding occurs in which the form and structure of the whole become apparent
當激光照射部分全息圖,可以明前的展現發生在整體中的形式和結構。Therefore, the waveguide optical modes in the semiconductor lasers with different waveguide structures are investigated by means of optical waveguide theory. with the development of fabrication and packaging techniques, the dimensions of optoelectronic and photonic systems have become smaller and smaller. the far - field radiation models are no longer suitable for the near - field distribution of semiconductor lasers
隨著製作工藝和封裝技術的發展,光電系統和光子系統的尺寸越來越小,半導體激光輻射的遠場模型不再適合其近場特性的分析;而且,半導體激光器可以作為近場虛擬光探針,應用於近場光學高密度存儲、納米光刻、近場光學成像以及光譜探測等領域。It has a broader absorption band at 808 nm which is emitted by laser diode ( ld ). therefore, nd : cngg is suitable for ld pumping, the ld pumped all solid - state lasers can be made by using nd : cngg. in this study, nd : cngg single crystals of 25mm in diameter and above 80mm in length were successfully grown by the automatically pulling method from the melt
摻釹鈣鈮鎵石榴石(簡稱nd : cngg )是一種新型激光晶體,該晶體熔點低( 1470 ) ,具有無序結構,在通用的808nm半導體激光二極體( ld )發射波長區有寬吸收帶,因此很適合ld泵浦,可做成ld泵浦全固態激光器。In this thesis, the research on short - range high accuracy range finding system, which is inexpensive and compact, is done. to design the laser transmitter and the timing circuit is the main task
本文旨在針對成本低、體積小的高精度短程激光測距系統開展研究工作,主要任務是設計與實現脈沖激光測距系統中激光發射器電路和計時電路。In the counting system, a semiconductor laser emitter is used as the light source, point laser beam produced by optic system, reflection of part transferred into electric signal by photoelectric triode, and scm system as the counter
採用半導體激光發射器作為光源,經過光學系統形成的最小激光束照射器件,反射光由光電三極體進行光電轉換,計數控制使用單片機系統。In this paper, such three points are studied as : a ) the angular distributions of the hot electrons emission under laser irradiation at different incidence angles and at different polarization direction, the angular distribution of the hot electrons in the different energy range, and the effects of laser prepulse on the angular distributions of the hot electrons emission ; b ) the energy distribution of the hot electrons at different directions, from the metallic targets and the dielectric targets, in the different energy range of the hot electrons, and the effects of the atomic number z on the energy distribution of hot electron generated by the metallic targets ; and c ) the energetic proton emission resulting from the interaction of the us - ui laser pulse with plasma
本論文進行了三個方面的研究:第一,超熱電子角分佈的研究,包括不同激光入射角下超熱電子的角分佈;激光不同偏振態下超熱電子的角分佈;激光預脈沖對超熱電子角分佈的影響;不同能段的超熱電子的角分佈。第二,超熱電子能量分佈的研究,包括不同方位超熱電子的能量分佈,金屬與非金屬靶材的超熱電子的能量分佈,金屬原子序數z對超熱電子能量分佈的影響以及不同能段超熱電子的能量分佈。第三,研究了超短超強激光與固體靶相互作用所產四川大學博士學位論文生的高能質子發射和能譜。The photo - induced phase transition of the different light intensities, photo - energies and directions of the polarized light is investigated. it suggested that the photo excites the down spin eg electrons and destroys the spin order system of the thin films. the relation between the he - ne laser reflectivity of the thin film, applied current and resistance was analyzed by the optics theory of solid state physics
光子通過激發e _ g向下電子的躍遷,從而改變材料自旋極化方向,影響體系的輸運行為;首次研究了cmr薄膜的激光反射率和偏置電流的關系,並用固體光學理論對其定性分析,表明反射率的變化是由於電場引起材料的晶格畸變,改變了極化率,從而導致材料的折射率和反射率發生改變。Compared to gan, which is one of the most successful wide - band semiconductor materials at present, zno is promising : high - quality zno with very low defect densities can be synthesized at much lower temperature than gan ; zno can emits light with shorter wavelength than blue light emission from gan ; zno has higher excitonic binding energy ( ~ 60mev for zno, 25mev for gan ), which promises strong photoluminescence from bound excitonic emissions at room temperature ; meanwhile, homogeneous bulk zno is available
和gan相比, zno薄膜具有生長溫度低,激子復合能高( zno : 60mev , gan : 21 25mev ) ,受激輻射閾值較低,能量轉換效率很高等優點。有可能實現室溫下較強的紫外受激發射,制備出性能較好的探測器、發光二極體和激光二極體等光電子器件。Based on the rate - equation theory of four - level system, the expressions of threshold pump power, output power and slope efficiency are given. the influence of space distribution of pump light ( the position of focusing point, dimension of pumping light and divergence angle ) to the output characteristics are also discussed. then, by investigating the effects of thermal effect of laser crystal on the size of laser cavity mode, we obtain the mode - matching principle of high power laser diode end - pumped solid - state lasers
其中,在泵浦光的空間分佈變量中我們分別考慮了泵浦光聚焦后的腰斑大小、聚焦腰斑在增益介質中的位置以及泵浦光在介質中發散角的影響;然後我們研究了在高泵浦功率下激光晶體因吸收泵浦光而產生的熱效應所導致的熱透鏡效應以及熱致衍射損耗,通過分析它們對振蕩激光腔模尺寸的影響,得到了高功率半導體激光二極體端面泵浦固體激光器模式匹配的要求,為高功率連續單頻nd : yvo _ 4激光器的優化設計提供了理論依據。The light is emitted by the laser diode and enters a diffraction grating
激光束從激光二極體中發出,射入衍射光柵。It is widely accepted that zno is one of the most promising materials for producing an ultraviolet laser at room temperature due to its wide direct band gap ( eg = 3. 3ev ) and large excitonic binding energy of 60 mev, which was testified by the results of optically pumped stimulated emission and lasing from zno thin films
氧化鋅作為一種寬帶隙半導體( 3 . 3ev ) ,激子束縛能大( 60mev ) ,在室溫下容易獲得強的激子發射,而且可能成為紫外激光的重要材料。因此,對氧化鋅的研究已成為繼gan之後寬帶隙半導體研究的又一熱點。The increase of radiative transition rate with decreasing particle size was attributed to the lower symmetry surrounding the eu3 + ions, while the increase of nonradiative transition rate to the extra nonradiative transition channels caused by surface defects. ( 3 ) under excitation of 488 nm, temperature - dependence of emission intensity of the 5d4 - 7fj transition in nanocrystalline y2o3 : tb was studied. in nanocrystalline, there appeared two maximal intensities
( 3 )研究了488nm激光激發下不同顆粒尺寸的y _ 2o _ 3 : tb納米晶熒光發射強度隨溫度的變化規律,發現y _ 2o _ 3 : tb納米晶熒光發射強度在280k與590k存在兩個極大值,而體材料只在280k有一個極大值。The laser transmitter consisted of laser diode can decrease the scale and the weight of the range finding system and can achieve the requirement for short - range finding system
而採用激光二極體組成的激光發射單元體積小、重量輕,能達到短程測距的要求。Effects of low intensity laser irradiation and led irradiation on the fibroblasts. the six parts of this thesis explored the effects of light emission diode ( led ) irradiation on the proliferation of human skin fibroblasts
低強度激光照射和led照射對成纖維細胞的影響發光二極體( led )照射能代替低強度激光照射在治療傷口愈合中發揮作用。From the reported experiments, we found some interesting facts : in the experiments with no lil effects, some anesthetics ( ketamine, ether etc ) were often added during treatment schedule, whereas they were seldom used in the experiments with lil effects
我們在總結大量低強度激光照射治療動物皮膚傷口模型的實驗中發現:動物活體實驗中用於麻醉的藥物對實驗結果有影響。當麻醉藥物為氯胺酮等時,低強度激光照射往往不能促進動物皮膚傷日的愈合。So special burst - mode transmitters and receivers should be adopted at up - stream transmission. the main purpose of the thesis is to research 155mb / s burst - mode transmitter applicable for apon system. with peak - detection automatic power control technology, laser diode is successfully used as light source to emit burst optical signals
本次論文主要工作是完成apon系統中155mb s突發模式光發射模塊的研製,通過採用峰值檢測的自動功率控制技術,成功的實現了半導體激光器( ld )做光源發出突發光信號。In this paper, the composition of surgical instrument is described, and the laser control including the communication between computer and laser device, laser pulse on - off control and gas exchange are detailed
本文簡述了一準分子激光眼科治療機的整體組成部分,並詳細描述了激光器的控制部分:計算機與激光器的通信控制、激光發射停止控制、充換氣流程式控制制。分享友人