Planar refractive index patterning through microcontact photo-thermal annealing of a printable organic/inorganic hybrid material.

Stefan Bachevillier, Hua-Kang Yuan, Kornelius Tetzner, Donal Bradley, Thomas D. Anthopoulos, Paul N Stavrinou, Natalie Stingelin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We demonstrate proof-of-concept refractive-index structures with large refractive-index-gradient profiles, using a micro-contact photothermal annealing (μCPA) process to pattern organic/inorganic hybrid materials comprising titanium oxide hydrate within a poly(vinyl alcohol) binder. A significant refractive index modulation of up to Δn ≈ +0.05 can be achieved with μCPA within less than a second of pulsed lamp exposure, which promises the potential for a high throughput fabrication process of photonic structures with a polymer-based system.
Original languageEnglish (US)
JournalMaterials Horizons
StatePublished - Oct 20 2021

Cite this