laser medium 中文意思是什麼
laser medium
解釋
激光媒質-
At last, the conclusions of the whole thesis are drawn, and it is put forward that the future research emphases on the infrared radiation absorption ct technology should focus on : instantly get the absorption projections are the crucial factor to utilize the technology industrially ; on the basis of the hypothesis that the gas is ideal gas, species concentration of particular gas medium can be measured at the same time, which must be helpful to comprehend combustion essence ; if laser source to replaces blackbody stove, for irradiant flame, interferometric projection can be attained, and its temperature distribution will known
最後，對全文進行了總結，並指出今後研究工作重點。指出：瞬時得到各方向的投影是此技術實用化關鍵；在獲得溫度分佈信息基礎上，進行必要的假設和推導，能同時得到火焰中某特定組分濃度的分佈，這必將進一步我們對燃燒本質的理解；利用方向性好，輻射強度高的激光源代替常規的黑體爐，能得到輻射干涉投影圖像，這樣就能測量所介紹系統不能測量的發光火焰溫度分佈。 -
In order to study the mechanism of the effect of low concentration tfp on the proliferation of s. pombe, we watch yeast cells loaded with fluo - 3 under laser scanning confocal microscope ( lscm ). the fluorescence intensity reflected the cytosolic free calcium concentration. the result showed that, the cytosolic free ca2 + concentration in s. pombe cultured in ca2 + - free medium was 2 ~ 3 times lower than that in s. pombe cultured in medium containing 10umol / l ca24, while ca2 + concentration in s. pombe treated with 50umol / l tfp was 4 - 5 times higher
本文發現增加胞外鈣濃度以及低濃度（ 20 100 mol l ）三氟拉嗪（ tfp ）不但能促進野生型s . pombe細胞的增殖，而且對mfp7菌株也有同樣的效應，這說明胞外ca ~ （ 2 + ）和低濃度tfp對不同遺傳型裂殖酵母細胞的增殖均有促進作用。 -
The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro
激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。 -
The spectrum evolution of the femtosecond laser pulse in a three - level organic molecular medium ( 4, 4 ' - bis ( dimethylamino ) stilbene ) is studied theoretically by solving the maxwell - bloch equations using an iterative predictor - corrector finite - difference time - domain method
摘要通過採用預估校正的時域有限差分法求解麥克斯韋布洛赫方程，我們研究了飛秒激光脈沖在三能級有機分子（ 4 ， 4 ' -二甲氨基二苯乙烯分子）介質中傳播時脈沖的頻譜演化情況。 -
Firstly, we analyze the character of nd : yag, bbo and lbo, for nd : yag crystal and select the nd : yag as the gain medium and lbo as doubling - frequency crystal. ln the theory, analyzing the parameter of the gain medium length, the ratio of the pump - and laser - beam waists. based on the above analysis, we design the resonance cavity
首先，我們對增益介質的性質和非線性晶體bbo和lbo的一些性質進行了比較，選取nd ： yag作為增益介質， lbo作為倍頻晶體。理論上分析了激光器設計中的一些參數值，如增益介質長度、模式交疊率、最佳倍頻條件，並根據理論分析結果設計了諧振腔。 -
Special ability : 10 % bonus to medium hybrid turret optimal range per level and 20 % bonus to mining laser yield per level
特別的能力:每級加中型混合炮塔最佳射程10 %和采礦激光產量20 % 。 -
In the following we will expand on this idea in a more realistic model that takes into account the dynamic aspects of the saturation behavior of the laser medium.
下面將這一概念推廣到更真實的模型上，在這種情況下，需要考慮激光介質飽和特性的動態變化。 -
The laser crystal also presents other attractive features, such as strong and broad absorption band, makes this laser medium to be an excellent candidate for efficient diode pumping without temperature controlling
該晶體可摻入較高濃度的yb離子（ 0 . 5 ? 10 ） ，且不存在濃度猝滅。 -
An accurate model to calculate the laser gain distribution within the laser medium is proposed and an analysis model of thermal effect with varied parameters is deduced. the calculated results were verified by ansys finite elements program
本文建立了精確計算激光介質增益分佈的數值模型及給出了激光棒熱效應分析的變參數計算模型，其計算結果用有限元程序進行了驗證。 -
But the life time of krf laser medium is only 2 ns while the pump time of e - beam pump krf laser is over 100 ns. when a 1 ps ultrashort pulse amplified by krf laser amplifier most pump energy is waste. technology of multi pulse amplify can solve this problem
Krf激光器的工作介質是非儲能介質，上能態有效壽命約為2 - 3ns ，而電子束的泵浦時間一般為上百ns ，放大超短脈沖激光時絕大部分上能態的儲能沒有被利用。 -
The five lingnan undergraduates were : au yeung wing kit, third - year bachelor of business administration honours ; ho kin shing, ho kin suen and ngai tsz yiu, all second - year students in the same programme ; and lam kwan yat, a third - year student from the department of philosophy. noting that consumers were becoming immune to conventional advertising channels, the five students came up with an idea of establishing a zero ad enterprise using laser - printed eggs as their medium. the eye - catching end result was an innovative new low - cost advertising channel that would get clients messages into almost every home in hong kong
五位嶺大同學有見于雞蛋是一般家庭經常購買的基本食糧之一，而消費者對於一般的推廣渠道如電視報章及電臺廣告已漸見生膩，因此他們想到透過成立思路廣告zero ad的創新企業，利用激光技術將廣告印在雞蛋殼上，以為客戶帶來低成本直接而又高效益的市場推廣服務此外，廣告更可同時印于以可循環再做的有機物料製成的包裝膠盒上，在既能收到宣傳效用之餘，也合符環保原則。 -
At last, we illustrate the imaging process of nonlinear medium by numerical simulation, and the image position and intensity are studied. at the same time, it is pointed out that a piece of nonlinear medium and high power laser beam can form a hologram system. for the first time, we found that a " dark image " ( or " cold image " ) may emerge along with a " hot image "
最後，我們研究了「熱像」的形成機理及其規律，用數值模擬的方法形象地說明了非線性介質的成像作用，提出了用非線性介質和高功率激光形成全息成像系統的概念和思路，豐富了「全息成像」內涵，同時，首次發現了亮像和暗像同時並存的現象。 -
Mdamb543 human mammary carcinoma cells were used for the photodynamic effect experiment in vitro, they were incubated with varying concentrations of photosensitizers dissolved in rpmi 1640 medium, then were irradiated by copper vapor laser with mixed wavelength light of 510. 6nm and 578. 2nm. cell survival rate was analyzed by mtt assay
以體外培養的乳癌mdamb543細胞為靶細胞，和不同濃度的不同光敏劑孵育，在不同能量密度的銅蒸氣激光下，用mtt法檢測不同光敏劑對細胞的殺傷強度。 -
The various medium parameters have different influence on the reflection of the laser pulse. based on the diffusion approximation theory, the boundary condition of semi - infinite homogeneous media, the influence of the absorption a, the scattering s and the anisotropy coefficient g on the ultra short laser pulse of different pulse - width and shapes has been researched
論文對超短脈沖在混濁介質中的傳輸進行了理論分析和數值模擬，並在不同脈寬的高斯脈沖和方波脈沖入射到混濁介質的漫反射、漫透射脈沖強度和形狀進行了理論分析和數值模擬，得到了它們與各光學特性參數的關系曲線。 -
The goal of aero - optical research should be to improve or avoid the laser beam quality degradation caused by aero - medium
氣動光學研究的最終目的應該是改善或避免由於氣動介質引起的光束質量下降。 -
With the theoretical and experimental methods, the characters of cr4 + : yag are studied from cr4 + : yag as passive q - switching in nd : yag laser, intracavity frequency - doubling of q - switching laser and dual - wavelength laser, which is based on cr4 + : yag ' s operations of saturable absorption and laser gaining medium. chapter 1 : introducing the cr4 + : yag ' s optical function, the general research situation and the main idea of this thesis
本論文基於cr ~ （ 4 + ） yag晶體既可以作為nd yag激光器的被動調q開關、又可以作為激光增益介質的特點，採用理論和實驗相結合的研究方法，詳細而具體的研究了cr ~ （ 4 + ） yag晶體被動調q 、調q倍頻和雙波長激光輸出的特性。 -
A distant field interference of non - single - core light beams is analysed in a transparent liquid or solid when the bubble is irradiated with laser, a formula on optical path length difference is derived, interference regions and causes of interference rings thick inside and thin outside are analysed, the diameter of bubble can be measured by method of interference, the size of bubble and refraction index of gas inside the bubble can be measured in the depths of medium
摘要對透明液體、固體中氣泡在激光照射下產生的一種非單心光束干涉進行了遠場分析，得到了程差公式，分析了干涉的區域、圓環狀干涉條紋內密外疏的原因，通過干涉的方法可以測量氣泡的直徑，能夠用於介質深處氣泡尺寸及泡內氣體折射率的測量。 -
The theory of diffraction aberrations caused by aero - medium was introduced, a physical model on laser propagation in ordered, random inhomogeneous aero - medium was discussed and analyzed. the far - field energy distributions in two condition were given
介紹了氣動光學介質引起的衍射像差理論，分析討論了一套同時可以用於激光在有序，隨機兩種非均勻氣動介質中傳輸的理論模型。 -
Based on the character of the eof gain at 1550 nm, a laser diode ( ld ) worked at 980 nm and acted as the pumping source, a eof employed as gain medium, and a fiber grating used as reflector, an ring - cavity all - fiber laser worked at 1562. 5 nm was demonstrated with an output power of 2. 0 mw and a bandwidth of 0
本文主要基於摻鉺光纖在1550nm波段的增益特性，利用帶尾纖的980nm半導體激光器作為泵浦源，鉺光纖作為增益介質，布拉格光纖光柵作為諧振腔反射鏡，實現了波長為1562 . 5nm的環形腔光纖激光器，得到了2mw的激光輸出。 -
In the thesis, firstly, we report the setting up of our laser diode injection locking system. secondly, we analyzed the transient optical nonlinear response in four - level atomic medium induced by quantum interference effect
本文主要介紹半導體激光器注入鎖定系統的研製以及四能級原子量子相干過程中瞬態非線性光學響應的分析。
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