The design and preparation of microlens has shown obvious potential in practical applications in areas like microscale optical and optical-electrical devices, especially for integration of tiny structures, which are of great significance for study and application. Traditionally, the optical lenses are mainly prepared by grinding or melting materials, which often suffers from oversized volume, difficulty to integrate, and low degree of freedom for designed functions, which therefore limits the area of usage as we expected. In this work, by using the principles of micro-nano optics, we designed nano-structured artificial lenses that meet the focusing ability of lenses. This method utilizes the basic principles of diffractive optics and allows for the free design of any lens structure as needed. At the same time, the use of direct laser writing successfully helped fabricate the lens of microscale to achieve the function of simulated designed lens in the experiment. This overall process, including the simulation of optical design as well as the experimental preparation and testing of micro lens proves the effectiveness of the design and preparation of this micro-nano optical lens for freely designed functions which would be potential for integration of optical electrical platform with precise scales as tiny as micrometers. Objectively, this design provides a powerful method and technology for the design and preparation of microelectronic and micro-optical devices.

Meng Xiang. Design and fabrication of microlens based on laser writing technology. The Frontiers of Society, Science and Technology (2024), Vol. 6, Issue 10: 82-88. https://doi.org/10.25236/FSST.2024.061012.

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