Researchers have developed a new method for creating tiny optical apertures using 3D direct laser writing. This technique employs a highly absorptive photoresist material, enabling the fabrication of intricate and functional three-dimensional microstructures with enhanced optical properties. The advancement allows for precise control over light manipulation at the microscale, opening doors for applications in advanced microscopy, optical sensing, and microphotonics. The method’s simplicity and versatility in design offer significant advantages for creating customized optical components with tailored functionalities.
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