cylinder n. 1.圓筒;機筒;烘筒;量筒;(印刷機等的)滾筒。 2.【數(shù)學】柱(面),柱體。 3.【機械工程】汽缸;【化學】(裝氧氣等的)鋼筒,鋼瓶。 4.(左輪手槍的)旋轉(zhuǎn)彈膛。 5.【考古】(巴比倫和亞述的)圓筒形石印(= cylinder seal);(雕有阿拉伯人楔形文字的)圓柱形陶器。 (work) on all cylinders 〔口語〕盡全部力量(大干)。
In this paper , micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed , the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model . the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser , the layer refractive index and pair number of bragg mirror , thickness , position and oxidized material ' s refractive index of oxidized aperture , in detail . more practically , considering dos shell of laser as non - perfect one , or supposing that dos shell is separated from the laser , we can obtain more significative results 本工作以矢量場模型出發(fā),對具有誘人應(yīng)用前景的柱形垂直腔面發(fā)射結(jié)構(gòu)( vcsel )的微腔半導體激光器( mcsl )進行了理論分析,建立了用于分析方柱形和圓柱形結(jié)構(gòu)具有氧化孔徑層的激光器的模式特性的理論模型;對圓柱形結(jié)構(gòu)情況進行了數(shù)值模擬,得到了振蕩波長、閾值增益隨激光器內(nèi)外半徑、 bragg反射鏡層折射率、周期數(shù)以及氧化孔徑層厚度、位置和氧化物折射率的詳細變化規(guī)律;為使理論計算更接近實際,將外加金屬包殼視為非理想導體,或?qū)⒔饘侔鼩づc激光器結(jié)構(gòu)隔開,分別對這兩種情況下的結(jié)果進行了討論。