Creation of multifocal arrays and their application in nanofabrication

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The book explores the optical properties of tightly focused vectorial beams, utilizing high numerical-aperture objectives and vectorial Debye diffraction theory. It details how manipulating light polarization, amplitude, and phase enhances focusing properties. The experimental generation of these beams via a spatial light modulator (SLM) is showcased, leading to advancements in direct laser writing (DLW) for creating complex 3D structures. It addresses challenges like focal spot elongation and processing speed, introducing a dynamic laser printing technique that significantly accelerates fabrication.