Ultra-fast vortex rotating light field generating device

The invention is suitable for the technical field of ultrafast optics and light field regulation and control, and provides an ultrafast vortex rotation light field generation device, which comprises a light source system used for generating a linearly polarized femtosecond laser pulse; the vortex ch...

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG MAIJIE, CAI YI, LIN JIAHE, LIN QINGGANG, ZENG XUANKE, YUAN XINMING, XU SHIXIANG, WANG CONGYING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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 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 invention is suitable for the technical field of ultrafast optics and light field regulation and control, and provides an ultrafast vortex rotation light field generation device, which comprises a light source system used for generating a linearly polarized femtosecond laser pulse; the vortex chirp laser pulse generation system is used for generating a vortex chirp laser pulse based on the femtosecond laser pulse; and the pulse pair generation and interference system is used for generating pulse pairs with different frequencies and opposite topological charges based on the vortex chirp laser pulse and carrying out beam combination interference on the pulse pairs so as to generate an ultrafast vortex rotating light field. The vortex chirp laser pulse pair is utilized to generate an ultrafast vortex rotating light field, the rotating speed is determined by the beat frequency delta omega of the vortex chirp laser pulse pair and can reach the 1013rad/s magnitude, the corresponding rotating frequency reaches t