Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Surface-wave-sustained_mode> ?p ?o. }
Showing items 1 to 22 of
22
with 100 items per page.
- Surface-wave-sustained_mode abstract "Plasma that are excited by propagation of electromagnetic surface waves are called surface-wave-sustained. Surface wave plasma sources can be divided into two groups depending upon whether the plasma generates part of its own waveguide by ionisation or not. The former is called a self-guided plasma. The surface wave mode allows to generate uniform high-frequency-excited plasmas in volumes whose lateral dimensions extends over several wavelengths of the electromagnetic wave, e.g. for microwaves of 2.45 GHz in vacuum the wavelength amounts to 12.2 cm. For a long time, microwave plasma sources without magnetic field have not been considered suitable for the generation of high density plasmas. Electromagnetic waves cannot propagate in over-dense plasmas. The wave is reflected at the plasma surface due to the skin effect and becomes an evanescent wave. Its penetration depth corresponds to theskin depth , which can be approximated by The non-vanishing penetration depth of an evanescent wave opens an alternative way of heating a plasma: Instead of traversing the plasma, the conductivity of the plasma enables the wave to propagate along the plasma surface. The wave energy is then transferred to the plasma by an evanescent wave which enters the plasma perpendicular to its surface and decays exponentially with the skin depth. 'Transfer mechanism allows to generate over-dense plasmas with electron densities beyond the critical density. Surface-wave-sustained plasmas (SWP) can be operated in a large variety of recipient geometries. The pressure range accessible for surface-wave-excited plasmas depends on the process gas and the diameter of the recipient. The larger the chamber diameter, the lower the minimal pressure necessary for the SWP mode. Analogously, the maximal pressure where a stable SWP can be operated decreases with increasing diameter. The numerical modelling of SWPs is quite involved. The plasma is created by the electromagnetic wave, but it also reflects and guides this same wave. Therefore, a truly self-consistent description is necessary.".
- Surface-wave-sustained_mode wikiPageID "486341".
- Surface-wave-sustained_mode wikiPageRevisionID "527501449".
- Surface-wave-sustained_mode hasPhotoCollection Surface-wave-sustained_mode.
- Surface-wave-sustained_mode subject Category:Waves_in_plasmas.
- Surface-wave-sustained_mode type Abstraction100002137.
- Surface-wave-sustained_mode type Event100029378.
- Surface-wave-sustained_mode type Happening107283608.
- Surface-wave-sustained_mode type Movement107309781.
- Surface-wave-sustained_mode type PsychologicalFeature100023100.
- Surface-wave-sustained_mode type Wave107352190.
- Surface-wave-sustained_mode type WavesInPlasmas.
- Surface-wave-sustained_mode type YagoPermanentlyLocatedEntity.
- Surface-wave-sustained_mode comment "Plasma that are excited by propagation of electromagnetic surface waves are called surface-wave-sustained. Surface wave plasma sources can be divided into two groups depending upon whether the plasma generates part of its own waveguide by ionisation or not. The former is called a self-guided plasma. The surface wave mode allows to generate uniform high-frequency-excited plasmas in volumes whose lateral dimensions extends over several wavelengths of the electromagnetic wave, e.g.".
- Surface-wave-sustained_mode label "Surface-wave-sustained mode".
- Surface-wave-sustained_mode label "Разряд на поверхностной волне".
- Surface-wave-sustained_mode sameAs m.02g8qf.
- Surface-wave-sustained_mode sameAs Q7645909.
- Surface-wave-sustained_mode sameAs Q7645909.
- Surface-wave-sustained_mode sameAs Surface-wave-sustained_mode.
- Surface-wave-sustained_mode wasDerivedFrom Surface-wave-sustained_mode?oldid=527501449.
- Surface-wave-sustained_mode isPrimaryTopicOf Surface-wave-sustained_mode.