laser levels 中文意思是什麼
laser levels
解釋
激光能級-
We analyze the influences of the perturbed energy - level space and superposion, laser power and intermediate level offset on quantum interference. experimentally, in the sodium dimmer rhomb - type four - level system with a pair of perturbed levels, the interference enhancement of two - photon absorption caused by coherent superposition of the perturbed levels is experimentally observed
分析了微擾能級的間隔和疊加程度、激光功率以及中間能級的失諧對量子干涉效應的影響，實驗上觀察了包含有一對微擾疊加中間能級的菱形四能級系統中的雙光子激發現象，發現微擾能級的相干疊加可增強雙光子吸收。 -
Laser - induced population changes of 5p and 5d levels in rubidium vapor
態的布居數變化 -
So there is significant interest for the development of " optical limiter ", which strongly attenuates intense optical beams while exhibiting high transmittance for low - intensity ambient light levels, and therefore protects human eyes and optical sensors from intense laser pulses. the lack of appreciate nonlinear materials has been a significant barrier in the development of such devices
但隨大能量、高功率、短脈沖激光器的日益增多，激光傷害人眼和光學儀器的現象也隨之增多，激光威脅已成為不容忽視的現實問題，激光防護材料和激光防護器件也因而成為當今的熱門課題。 -
Now, it contracted obviously the disparity with whole country advanced level and raised the testing accuracy and research levels that the research institute whose experiment area is big and the devotion value is high, purchased lately a number of advanced experiment instrument equipments and software, for instance, model machine quickly, tri - coordinate measure machine, laser 3d scanners, multicenter vibration test and analysis system, electronic all - powerful experiment machine, hydraulic presses servo fatigue test machine, festo machine electricity to imitate manufacture system, the software of cad / cam / cae and so on
如今，研究所的實驗面積大、投入價值高，新購置了快速成型機、三坐標測量機、激光三維掃描儀、多通道振動測試與分析系統、電子萬能試驗機、液壓伺服疲勞試驗機、 festo機電模擬生產系統、 cad / cam / cae軟體等一批先進的試驗儀器設備和軟體，明顯縮小了與全國先進水平的差距，提高了試驗的準確性和科研水平。 -
Welding - electron and laser beam welded joints - guidance on quality levels for imperfections - steel
焊接.電子和激光束焊接接頭.缺陷的質量級別導則.鋼 -
Welding. electrons and laser beam welded joints. guidance on quality levels for imperfections. part 1 : steel
焊接.電子束和激光束焊接接頭.缺陷等級別導則.第1部分:鋼 -
Welding - electron and laser beam welded joints - guidance on quality levels for imperfections - aluminium and its weldable alloys
焊接.電子和激光束焊接接頭.缺陷的質量分級指南.鋁及其可焊合金 -
The second part is about co2 lasers. we first discuss the mechanisms of population inversion, including excitations and relaxations ( electron collision excitation, resonance transition excitation impacted by excited n2 molecules, the relaxation of both the lower - upper laser levels and the lowest level of co2 )
首先，討論了二氧化碳激光粒子數的反轉機理，包括電子碰撞激勵、激發態n2分子等共振轉換激勵過程，激光上下能級co2 （ 00 1 ， 10 0 ）以及最低能級co2 （ 0110 ）的弛豫過程等幾個方面 -
Because quasi - fermi levels of a laser diode ( ld ) vary with the carrier density, it is predicted that a new type of hysteresis loop should occur for the current passing ld while a hysteresis loop appears on the power - frequency curve of the ecld. an explicit analytical expression for the frequency width of the hysteresis loop and the condition for the formation of the hysreresis loop has been deduced
預測了由於半導體激光二極體（ ld ）的準費米能級之差隨ld內線流子密度的變化而變化，因而，在調諧外腔半導體激光器的輸出功率?振蕩頻率曲線上出現雙穩環的時候，通過ld的電流也應出現一個伴隨的新型雙穩環? ?電流雙穩環。
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