Generation of femtosecond electromagnetic pulses from semiconductor surfaces

We have generated electromagnetic beams from a variety of semiconductors. When a bare semiconductor wafer was illuminated by femtosecond optical pulses, electromagnetic waves radiate from the surface and form collinear diffraction-limited electromagnetic beams in the inward and outward directions. T...

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Veröffentlicht in:	Applied physics letters 1990-03, Vol.56 (11), p.1011-1013
Hauptverfasser:	ZHANG, X.-C, HU, B.B, DARROW, J. T, AUSTON, D. H
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Exact sciences and technology Other topics in electronic structure and electrical properties of surfaces, interfaces, and thin films Physics
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Beschreibung
Zusammenfassung:	We have generated electromagnetic beams from a variety of semiconductors. When a bare semiconductor wafer was illuminated by femtosecond optical pulses, electromagnetic waves radiate from the surface and form collinear diffraction-limited electromagnetic beams in the inward and outward directions. The amplitude and phase of the radiated field depend on carrier mobility, the strength and polarity of the static internal field at the semiconductor surface.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.102601