皮秒激光脈沖觸發(fā)下光電導(dǎo)開關(guān)響應(yīng)時(shí)間的理論計(jì)算
THE THEORETICAL CACULATIONS OF RESPONSE TIME OF PHOTOCONDUCTIVE SWITCH UNDER EXCITATION OF PICOSECOND LASER PULSES
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摘要: 本文采用計(jì)算機(jī)數(shù)值分析的方法,分析了激光脈沖的能量、寬度、半導(dǎo)體對(duì)光的吸收系數(shù)、半導(dǎo)體的表面復(fù)合、體復(fù)合以及俄歇復(fù)合等因素對(duì)光電導(dǎo)開關(guān)響應(yīng)時(shí)間的影響。結(jié)果表明,光電導(dǎo)開關(guān)的響應(yīng)雖然很快,但與光脈沖并不完全同步,而有一個(gè)短的時(shí)間滯后。Abstract: The influence of laser pulse energy, laser pulse width, switch materiai absorption coefficient, surface recombination bulk recombination and Auger recombination upon the response time of photoconductive switch has been analyzed by using the computer numerical approach. Although the calculation shows that the mponse of photoconductive switch is very fast, there exists a short time lag.
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W. B. Scott, Aviation Week Space Technology, 131(1989)23, 38-41.[2]G. Ariavalingam, Y. Pastol, J. Malbout, G. V. Kopcsay, IEEE Trans. on MTT, MTT-38(1990), 615-621.[3]Chi H Lee, IEEE Trans, on MTT, MTT-38(1990)5, 596-607.[4]Chi H. Lee, ED. Picosecond Optoelectronic Devices, New York: Academic,(1984),p.127. -
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