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High time resolution laser induced fluorescence in pulsed argon plasma
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10.1063/1.2217919
/content/aip/journal/rsi/77/10/10.1063/1.2217919
http://aip.metastore.ingenta.com/content/aip/journal/rsi/77/10/10.1063/1.2217919
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Experimental setup for time resolved LIF diagnostic: PHPS—pulsed helicon plasma source, IN—injection optics, AN—antenna, CO—collection optics, BD—beam dump, EM—electromagnets, PMT—photomultiplier tube, OF—optical fiber, OC—optical coupler, AOM—acousto-optic modulator, PHD—photodiode, and BS—beam splitter.

Image of FIG. 2.
FIG. 2.

(a) The LIF signal amplitude dependence vs chopping frequency (2—, (Š—, 1— integration times). (b) The LIF signal amplitude dependence vs integration time for chopping frequency. (c) The relative intensity of the AOM transmitted light in the first diffraction order vs Bragg angle misalignment. (d) The dependence of LIF signal amplitude vs injected laser power density.

Image of FIG. 3.
FIG. 3.

(a) Raw LIF signal during the discharge pulse (only 3 of 25 wavelengths are plotted). (b) Oscillations of the LIF signal amplitude observed on the first of the pulse (as insert) and corresponding power spectrum showing oscillation frequency. (c) LIF signal after low pass filtering. (d) Argon ion vdf at into the pulse.

Image of FIG. 4.
FIG. 4.

(a) Contour plot of the evolution of the argon ion vdf during the pulse with time resolution. (b) Evolution of the LIF signal amplitude (continuous line) and ion flow velocity (dashed line) during the pulse.

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/content/aip/journal/rsi/77/10/10.1063/1.2217919
2006-09-21
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High time resolution laser induced fluorescence in pulsed argon plasma
http://aip.metastore.ingenta.com/content/aip/journal/rsi/77/10/10.1063/1.2217919
10.1063/1.2217919
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