English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Localized polymerization in subwavelength volumes using two photon dyes hasnow become a well-established method for fabrication of subwavelengthstructures. Unfortunately, the two photon absorption dyes used in such processare not only expensive but also proprietary. LTPO-L is an inexpensive, easilyavailable single photon photoinitiator and has been used extensively for singlephoton absorption of UV light for polymerization. These polymerization volumeshowever are not localized and extend to micron size resolution having limitedapplications. We have exploited high quantum yield of radicals of LTPO-Lforabsorption of two photons to achieve localized polymerization in subwavelengthvolumes, much below the diffraction limit. Critical concentration (10wt%) ofLTPO-Lin acrylate (Sartomer) was found optimal to achieve subwavelengthlocalized polymerization and has been demonstrated by fabricating 2D/3D complexnanostructures and functional devices such as variable polymeric gratings withnanoscaled subwavelength resolution. Systematic studies on influence of LTPO-Lconcentration on two photon polymerization of commercially availablephotopolymer (Sartomer) show that resolution of the fabricated structurescritically depend on loading of LPTO-L. This is expected to unleash the truepotential of two photon polymerization for fabrication of complex polymericnanodevices at a larger scale.

Localized Polymerization Using Single Photon Photoinitiators in Two-photon process for Fabricating Subwavelength Structures