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Showing 1 to 4 of 4 for “"space charge field"”.
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Picosecond Dynamics of Free-Carrier Populations, Space-Charge Fields, and Photorefractive Nonlinearities in Zincblende Semiconductors
… free-carrier population results in an internal space-charge field, which produces an index change via the linear electrooptic effect. The photorefractive effect has been widely studied for a variety of materials and device applications, mainly because it allows large index changes to be …
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Interactions of single-crystal lithium niobate surfaces with ultra-violet laser radiation
… explanation was proposed whereby photo-excited charges travel within a pyro-electric field, creating a space-charge field which locally inverts the spontaneous polarisation. The anisotropy in behaviour between the +z and -z faces was explained by the different mobilities of electrons and holes. …
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Experimentelle Untersuchung der Ladungsträgerdynamik in photorefraktiven Polymeren
Die heutige optische Informationsverarbeitung erfordert neue Materialien, die Licht effektiv verarbeiten, steuern und speichern können. Photorefraktive (PR) Materialien sind dafür sehr interessant. In diesen Materialien entsteht bei inhomogener Beleuchtung (z.B. mit einem Intererenzmuster) über …
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Space charge determination in HVDC power cable and its influence on electric field
… as the accumulation of comprehensive immobile charges in the XLPE, this superimposes to the Laplacian field resulting the changes of electric stress across the dielectric material. Additionally, in most HVDC transmission systems both the presence of temperature gradient across its insulation …