Mechanisms and optimization for the rapid fabrication method of polymeric microlens arrays

被引：2

作者：

Gain, Asit Kumar ^{[1
]}

Zhang, Liangchi ^{[1
]}

机构：

[1] Univ New South Wales, Sch Mech & Mfg Engn, Lab Precis & Nano Proc Technol, Sydney, NSW 2052, Australia

来源：

APPLIED OPTICS | 2020年 / 59卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

TAILORED OPTICAL CHARACTERISTICS; REPLICATION; DESIGN;

D O I：

10.1364/AO.383365

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper presents a simple and cost-effective rapid method to make defect-free polymeric microlens arrays at room temperature without applying external pressure. This method uses an optically dear and high-transparency Norland Optical Adhesive (NOA) monomer solution. This is realized by using a combination of a mold and an ultraviolet (UV) polymerization technique. NOA can cross-link in a tenth of a second upon UV exposure. The uniformity and surface quality of the manufactured microlens arrays are investigated through atomic force microscopy and optical microscopy techniques. Experimental results show that the microlens arrays manufactured by the polymerization process are of very high quality without any defects. Further, the surface quality of the lenses can be significantly enhanced by increasing the viscosity of the photosensitive monomer solution. (C) 2020 Optical Society of America

引用

页码：405 / 412

页数：8

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