激光光吸收體 的英文怎麼說
中文拼音 [jīguāngguāngxīshōutǐ]
激光光吸收體
英文
safty equipment laser absorbers- 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) ...
- 吸 : 動詞1 (把液體、氣體等引入體內) inhale; breathe in; draw 2 (吸收) absorb; suck up 3 (吸引) a...
- 收 : Ⅰ動詞1 (把攤開的或分散的事物聚集、合攏) put away; take in 2 (收取) collect 3 (收割) harvest...
- 體 : 體構詞成分。
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We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene, stilben, thiophene as center attached with amine, diphenylamine, diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length, n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level. it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors, and that a corresponding correlation for the two - photon absorption is decreasing. it is also found that a most crucial role for the two - photon absorption is played by the n center
我們分別以苯、二苯乙烯、噻吩為中心,氨基、二苯氨基和二乙氨基為電子給體,硝基為電子受體組合形成的分子為研究對象,在從頭計算的水平上用密度泛函理論計算了這些分子在低激發態下的單、雙光子吸收強度,重點研究了分子的長度、中心和給體的供電子能力對分子單、雙光子吸收的影響。研究結果表明,分子長度與單光子吸收強度之間有密切關系,而在雙光子吸收中這種關系較弱;中心在雙光子吸收中具有重要的作用;在中心和受體一定的情況下,增加給體的供電子能力,可提高雙光子吸收強度。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。Effect of saturable absorber to solid state mode - locked femtescond laser
飽和吸收體對飛秒脈沖固體激光鎖模的影響Semiconductor saturable absorber mirror mode - locked optically pumped vertical - external - cavity surface - emitting semiconductor lasers
半導體可飽和吸收鏡鎖模光抽運垂直外腔面發射半導體激光器In this article, physical equations and relative three - dimensional finite - difference formulae in cylindrical and spherical geometries were derived and two - and three - dimensional code in cylindrical and spherical geometries for direct - drive by laser was made, based on the lared - s code in planar geometry. it consisted of the processes such as the inverse bremsstrahlung absorption, electic heat conduction and fluid dynamics
本論文在lared - s程序平面版本基礎上,推導了三維柱和球幾何中激光驅動的物理方程和相應的差分方程,編制了二維和三維柱和球幾何中激光驅動流體不穩定性的lared - s程序版本,主要物理過程包括:激光逆軔致吸收、電子熱傳導和流體運動。Based on the principle of dspi, a kind of visual system was designed in this dissertation. which can be used in testing the off - surface displacement and deformation of the rough surface. at the same time, a multi - purpose optical metering system which contains this visual system was created and manufactured
基於dspi原理,論文吸收統計分析思想,相對完善了該技術的實用技術體系,設計了一種dspi應用光路,該光路可用於粗糙表面離面位移和形變檢測,並依託此光路設計了一套多功能激光光電實驗系統。Xanthophyli cycle has been widely concerned since the finding that it has the function in heat dissipation. with the trans - thylakoid ph gradient, zeaxanthin ( z ) together with antheraxanthin ( a ) can absorb excess energy from chlorophyll and release it as heat, thus protect the photosynthetic apparatus from photodamage by high light. violaxathin de - epoxidase ( vde ) is the key enzyme in xanthophylls cycle
目前普遍認為葉黃素循環的色素定位於天線色素蛋白復合體上,在跨膜質子梯度( ph )形成后,玉米黃質( z )和環氧玉米黃質( a )能夠從葉綠素中吸收過多的激發能,並以熱能的形式耗散到體外,從而保護光合器官免受強光的破壞。The enthalpy change on dsc curve suggests that the transition is one from low - ordered state to a higher - ordered state. a stacking mood that the 4 - trifluoro - methyl - 2, 3, 5, 6 - tetrafluorophenylmserts in between two perylene - macrocycles is confirmed by theoretical quantum calculation, such an insertion effect leads to the inversion of ( 0, 0 ) and ( 0, 1 ) absorption features under low temperature and the dramatic decrease of exciton coupling, which contributes to the spectral similarity in solution and the solid state
量子化學的計算結果支持氟取代的苯環嵌入兩個相鄰的?環之間的分子堆砌方式,使得在常溫到150左右f - ptcdi固體薄膜的紫外-可見吸收光譜的( 0 , 0 )和( 0 , 1 )性狀的強度對比發生「反轉」 ;氟取代苯環的嵌入大大降低激子耦合,使固體吸收光譜性狀與溶液類似。It is especially suited for removing tattoos, improving incorrect eyebrow tattoos and eliminating freckles, senile plaque, foxiness in shallow skin and tatiana mole in deep skin and has also produced a good curative effect in treating blood vessel and other skin disease
毫焦耳,色素團在瞬間吸收了高能量的激光后迅速膨脹,破裂成細小顆粒,這些小顆粒被體內的巨噬細胞吞噬後排出體外,色素逐漸變淺,最後消失,達到治療的目的。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。At first, modeling of these divvies by rate equations to obtain expressions for threshold and slope efficiency is given. on the case of this theory, the large numbers of literatures and datum are consulted, and the laser is home studied. through rationally selecting and improving the reflector surface, ensuring the beam quality, increasing farthest the absorption path, and improving effective pumping frequency ; through designing the water cooler of yag bar, the volume of laser is half the same internal and international production, and the output power is get to the extremum of the same international production
並在此基礎上查閱了大量文獻和資料,對該種激光器進行了深入的研究,通過對yag棒直徑的合理選取併合理地改進反射鏡面,從而既保證了光束質量又最大限度的增加了吸收長度,有效的提高了泵浦效率;在不影響泵浦的前提下,通過有效縮短yag棒的長度減小輸出損耗;對yag棒的水冷系統進行優化結構設計,使激光器體積減小到國外同類產品體積的一半,而輸出功率已達到國外同類產品的極限值。Among these, some cr4 + - doped crystals have the character of polarized absorb, and can obtain the linear polarized output pulse laser without any polarizer. it ' s a very good character for intracavity frequency doubling
其中有的含cr離子晶體還具有偏振方向選擇的吸收特性,不加任何偏振元件即可輸出線偏振的脈沖激光,這對于腔內倍頻是一個非常好的特性。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。( 4 ) after cr4 + : yag has been added to the sbs yag laser, this laser was calculated numerically, and was experimentally studied
( 5 ) 、實驗研究了含飽和吸收體的sbsyag激光器。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。The nonuseful loss of cavity were got by measuring the threshold of laser under the different output mirrors. the loss was caused by prague angle unmatching. 3. the pulse train with minor pulse width 22ns and frequency 23khz, peak power 3. 5kw were obtained in cr4 " : yag passively q - switch experience. the stability of pulse is 6 %
( 3 )實現了在大功率泵浦、無水冷的情況下cr ~ ( 4 + ) : yag飽和吸收體被動調q ,得到了最小脈寬為22ns 、重復頻率為23khz 、峰值功率為3 . 5kw的激光脈沖輸出,脈沖的穩定性為6 。Materials with strong two - photon absorption ( tpa ) are currently attracting considerable attention in the chemistry, photonics and biology communities because of their potential applications in optical power limiting, upconverted lasering, three - dimensional datastorage, nondestructiveimaging and photodynamic therapy
強雙光子吸收材料由於在激光限幅、雙光子上轉換激射、三維信息存儲、生物體三維成像、光動力學治癌等方面具有誘人的應用前景,成為材料化學、光子學、生物學等領域的關注熱點。Safty equipment laser absorbers
激光光吸收體Safty equipment ; laser absorbers
激光光吸收體The results indicate that for one dimension center conjugated organic molecules, the tree - state model can well calculate its low - excited states tpa cross sections
研究結果表明,對於一維體系的對稱型共軛分子,三態模型可以很好地給出低激發態的雙光子吸收截面。分享友人