Direct- write 3D printing of plasmonic nanohelicoids by circularly polarized light

• 成果类型: Article
• 署名作者: Kim, Ji-Young; McGlothin, Connor; Cha, Minjeong; Pfaffenberger, Zechariah J.; Emre, Emine Sumeyra Turali; Choi, Wonjin; Kim, Sanghoon; Biteen, Julie S.; Kotov, Nicholas A.
• 署名单位: University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; Rensselaer Polytechnic Institute; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-13065
• DOI: 10.1073/pnas.2312082121
• 发表日期: 2024-03-06
• 关键词: nanoparticles; metamaterial; chirality

摘要

Chiral plasmonic surfaces with 3D forests from nanohelicoids should provide strong optical rotation due to alignment of helical axis with propagation vector of photons. However, such three- dimensional nanostructures also demand multi - step nanofabrication, which is incompatible with many substrates. Large - scale photonic patterns on polymeric and flexible substrates remain unattainable. Here, we demonstrate the substrate- tolerant direct - write printing and patterning of silver nanohelicoids with out - of - plane 3D orientation using circularly polarized light. Centimeter - scale chiral plasmonic surfaces can be produced within minutes using inexpensive medium - power lasers. The growth of nanohelicoids is driven by the symmetry- broken site- selective deposition and self- assembly of the silver nanoparticles (NPs). The ellipticity and wavelength of the incident photons control the local handedness and size of the printed nanohelicoids, which enables on - the - fly modulation of nanohelicoid chirality during direct writing and simple pathways to complex multifunctional metasurfaces. Processing simplicity, high polarization rotation, and fine spatial resolution of the light- driven printing of stand - up helicoids provide a rapid pathway to chiral plasmonic surfaces, accelerating the development of chiral photonics for health and information technologies.