ArticleMicrosystems & nanoengineering2022
Strain-tunable optical microlens arrays with deformable wrinkles for spatially coordinated image projection on a security substrate.
Article in Microsystems & nanoengineering, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Gate-tunable flexible photodetector with wavelength-selective response based on asymmetric 2D heterostructures.Microsystems & nanoengineering · 2025Article
- Geometric determinants of sinterless, low-temperature-processed 3D-nanoprinted glass.Microsystems & nanoengineering · 2025Article
- Alignment error modeling and control of a double-sided microlens array during precision glass molding.Microsystems & nanoengineering · 2024Article
- Wrinkled Interfaces: Taking Advantage of Anisotropic Wrinkling to Periodically Pattern Polymer Surfaces.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Review
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Authors and funding
8 authors.
Funding
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Abstract
As a new concept in materials design, a variety of strategies have been developed to fabricate optical microlens arrays (MLAs) that enable the miniaturization of optical systems on the micro/nanoscale to improve their characteristic performance with unique optical functionality. In this paper, we introduce a cost-effective and facile fabrication process on a large scale up to ~15 inches via sequential lithographic methods to produce thin and deformable hexagonally arranged MLAs consisting of polydimethylsiloxane (PDMS). Simple employment of oxygen plasma treatment on the prestrained MLAs effectively harnessed the spontaneous formation of highly uniform nanowrinkled structures all over the surface of the elastomeric microlenses. With strain-controlled tunability, unexpected optical diffraction patterns were characterized by the interference combination effect of the microlens and deformable nanowrinkles. Consequently, the hierarchically structured MLAs presented here have the potential to produce desirable spatial arrangements, which may provide easily accessible opportunities to realize microlens-based technology by tunable focal lengths for more advanced micro-optical devices and imaging projection elements on unconventional security substrates.
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Registered trials
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