Surface topographic manipulation plays a key role in advanced photonic devices. However, traditional azobenzene polymers or photoresists still face significant challenges in response speed and processing precision. Herein, we couple ultra-small polyoxometalate molecules with polyvinyl alcohol through hydrogen bonding to construct precision topographic manipulation with a detectable vertical modulation height down to 1 nm. The holographic relief gratings are obtained by photo-induced redox, local softening, and mass transfer, exhibiting a diffraction efficiency of up to 20% with a second-level response time. Utilizing multi-exposure, we achieve rapid fabrication of complex surface relief structures. Then, macroscopic physical patterns, dynamic structural colors, and 3D nested steps are integrated to construct a multiple "Holo-Lock". The photonics device achieves sequential authentication from intuitive naked-eye recognition to deep laser encryption, enhancing information security. This work paves a bright way to realize data storage, customizable micro/nanostructures, and advanced holographic display.
Laser modification of polymer surfaces is critical in many contexts, including self-cleaning materials, microelectronics, and biomedical research. Despite their utility, accessing these modified polymers requires expensive or complex materials and multistep fabrication, masking, and washing processes. Here, we present...
Abigail K. Mann, Leo James, Harshal D. Patel et al.· ACS Applied Materials and In...· 0 citations
We report a method for precise surface structuring of azobenzene‐functionalized polymer films using a spatial light modulator (SLM) to generate tailored vectorial light fields with controlled polarization distributions. This approach enables the direct inscription of localized surface features such as single and mult...
Jonas Strobelt, Nikolai Liubimtsev, Marina Saphianikova et al.· Advanced Optical Materials· 0 citations
Traditional static optical anti-counterfeiting relies on fixed luminescent patterns or a single optical response, making it susceptible to copying and counterfeiting; moreover, its mode of information presentation is singular, making it difficult to meet the demands of information encryption with high concealment and h...
Meng-Lu Li, Jian-Qiang Xiao, Kai Yin et al.· Applied Physics Letters· 1 citation
The miniaturization of OLEDs is critical for next-generation ultrahigh-resolution displays and integrated photonics. However, traditional vacuum evaporation and inkjet printing methods are incompatible with the lithographic scaling processes that underpin silicon electronics, hindering true monolithic integration with...
Chih-Jen Shih· Organic and Hybrid Light Emi...· 0 citations
ABSTRACT Grayscale lithography enables single‐step fabrication of continuous 3D surface relief for complex optics, MEMS, and scalable replication templates. However, its broad adoption is hindered by the cost, complexity, and resolution constraints associated with fabricating high‐quality grayscale masks. Here, we addr...
T. Creason, Gavin C. Gee, Zachary T. Piontkowski et al.· Advancement of science· 0 citations
The scalable fabrication of high-amplitude surface relief gratings (SRGs) remains a central challenge due to the trade-off between molecular functionality and photodeformability. In this work, we present a precursor-assisted fabrication strategy using chlorine-functionalized polymers as both synthetic precursors and...
