Asymmetric double Langmuir probe: Small signal application
نویسندگان
چکیده
منابع مشابه
Langmuir probe
Langmuir probes have been installed on satellites and sounding rockets to observe the general characteristics of thermal plasma in the ionosphere for more than five decades. Because of its simplicity and convenience, the Langmuir probe is one of the most frequently installed scientific instruments on spacecraft. While the algorithm to estimate the temperature and number density of thermal elect...
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In this paper, plasma main characteristics such as electron mean temperature, electron number density, and oscillation frequency have been measured experimentally using the double Langmuir probe diagnostic system. In our experiment, the plasma was generated by applying the low pressure dc glow discharge in several common gases. The experimental results indicated the highest plasma density and o...
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INTRODUCTION: The Langmuir probe is a diagnostic device used to determine several basic properties of a plasma, such as temperature and density. A plasma is a state of matter which contains enough free (not bound to an atom) charged particles (electrons and ions) so that its dynamical behavior is dominated by electromagnetic forces. The subject of plasma physics is concerned mainly with ionized...
متن کاملHigh-speed dual Langmuir probe.
In an effort to temporally resolve the electron density, electron temperature, and plasma potential for turbulent plasma discharges, a unique high-speed dual Langmuir probe (HDLP) has been developed. A traditional single Langmuir probe of cylindrical geometry (exposed to the plasma) is swept simultaneously with a nearby capacitance and noise compensating null probe (fully insulated from the pla...
متن کاملProbe absorptions in an asymmetric double quantum well
We investigate the probe absorption properties in an asymmetric coupled double quantum-well structure for both the transient and steady-state processes. Beyond the rotating-wave approximation, we directly simulate the transient dynamics with the density-matrix equations. The probe absorption is found to be completely eliminated under the condition of two-photon resonance, without requiring the ...
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ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 1987
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.1139332