ANALYSIS OF THE DYNAMIC BEHAVIOR OF A Q-SWITCHED CO2-LASER - THE LINEAR AND THE NONLINEAR REGIME

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	ANALYSIS OF THE DYNAMIC BEHAVIOR OF A Q-SWITCHED CO2-LASER - THE LINEAR AND THE NONLINEAR REGIME
	MEUCCI, R ; CIOFINI, M ; WANG, PY
刊名	OPTICS COMMUNICATIONS
	1992
卷号	91 期号:5-6 页码:444
关键词	PASSAGE-TIME STATISTICS SATURABLE ABSORBERS DELAYED BIFURCATIONS 4-LEVEL MODEL SWEPT PUMP CO2-LASER THRESHOLD NOISE FLUCTUATIONS RADIATION
ISSN号	0030-4018
通讯作者	MEUCCI, R: INST NAZL OTT,LARGO E FERMI 6,I-50125 FLORENCE,ITALY.
中文摘要	Spatial correlations and average wavenumbers of fluctuations have been measured in the edge region (0.8 < r/a < 1) of the TEXT tokamak using a heavy ion beam probe. The poloidal correlation length is substantially longer inside the limiter than it is outside. From this result it is concluded that the average wavenumber is smaller inside the limiter than it is outside. The frequency dependence of the average wavenumber also varies with radius, and a shear layer is sometimes observed. The frequency averaged wavenumbers are of the order of 1 cm-1. The statistical phase velocities vary from 2.5 x 10(5) to 6 x 10(5) cm/s in this region. The sensitivity to higher wavenumbers was increased by reducing the sample volume size in one experiment, and it was found that the fluctuation level changed by a factor of two while the wavenumber at a given frequency changed by 20%. The measurements are compared with previous results from far infrared scattering and Langmuir probes. The statistical phase velocities obtained with a heavy ion beam probe disagree with those from the other diagnostics in some but not all cases. The observed low frequency statistical phase velocities are comparable to the diamagnetic drift velocity in the laboratory frame in some but not all cases.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33713]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	MEUCCI, R,CIOFINI, M,WANG, PY. ANALYSIS OF THE DYNAMIC BEHAVIOR OF A Q-SWITCHED CO2-LASER - THE LINEAR AND THE NONLINEAR REGIME[J]. OPTICS COMMUNICATIONS,1992,91(5-6):444.
APA	MEUCCI, R,CIOFINI, M,&WANG, PY.(1992).ANALYSIS OF THE DYNAMIC BEHAVIOR OF A Q-SWITCHED CO2-LASER - THE LINEAR AND THE NONLINEAR REGIME.OPTICS COMMUNICATIONS,91(5-6),444.
MLA	MEUCCI, R,et al."ANALYSIS OF THE DYNAMIC BEHAVIOR OF A Q-SWITCHED CO2-LASER - THE LINEAR AND THE NONLINEAR REGIME".OPTICS COMMUNICATIONS 91.5-6(1992):444.