Patent ID: 11327326

Abstract:
The present disclosure discloses a real-time micro/nano optical field generation and manipulation system and method. The system comprises a light source, a spatial filtering unit, an optical 4F system and a light wave manipulation unit, and the optical 4F system comprises a first lens (set) and a second lens (set) sequentially arranged along a light path. The present disclosure achieves real-time modulation on an incident wavefront through a phase element or a phase element assemble. By dynamically manipulating an incident light sub-wavefront, or the light wave modulation optical element, or different areas of the optical element, or different parts of the optical field in an imaging plane and/or the like by the spatial filtering unit, real time light fields with different parameters are generated in the image plane of the system. By spatial filtering/spatial time division filtering/spatio-temporal multiplexing filtering and/or the change of the phase elements, flexible manipulation on patterns, pattern distribution areas and structural parameters such as the patterns' frequency, their orientations, duty ratios, phases or phase shifts and the like are realized. The system can be flexibly integrated into various lithography or microscopy systems for real-time micro/nano structure fabrication and dynamical or 3D detection with a real time manipulated structural illumination.