Method for ultroviolet absorption of organic film compressed laser pulse width

The present invention relates to a method for compressing laser pulse duration by utilizing organic film capable of absorbing UV light. It is mainly characterized by that the ultraviolet pulse laser can be focussed on the organic film capable of absorbing ultraviolet light, the produced plasma can a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	QIHONG LOU, ZHENHUAN YE, JINGXING DONG
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DEVICES USING STIMULATED EMISSION ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The present invention relates to a method for compressing laser pulse duration by utilizing organic film capable of absorbing UV light. It is mainly characterized by that the ultraviolet pulse laser can be focussed on the organic film capable of absorbing ultraviolet light, the produced plasma can absorb and scatter the laser self-body so as to can implement compression of laser pulse duration. Said invention is simple in device structure and convenient in operation, and can utilize the change of film thickness and focussed energy density (0.1-1 J/sq.cm) of laser to obtain pulse duration compression with different extents.