All‑optical 3D blue phase photonic crystal switch with photosensitive dopants

0585889 - FZÚ 2025 RIV US eng J - Journal Article
Oton, E. - Cigl, Martin - Morawiak, P. - Mironov, Sergei - Bubnov, Alexej - Piecek, W.
All‑optical 3D blue phase photonic crystal switch with photosensitive dopants.
Scientific Reports. Roč. 14, April (2024), č. článku 9910. ISSN 2045-2322. E-ISSN 2045-2322
R&D Projects: GA ČR(CZ) GF23-42944L
Institutional support: RVO:68378271
Keywords : blue phase * liquid crystal * photosensitive dopant * photonic crystal * alignment
OECD category: Materials engineering
Impact factor: 4.6, year: 2022
Method of publishing: Open access

Blue Phase liquid crystals have lately become the focus of extensive research due to their peculiar properties and structure. BPs exhibit a highly organized 3D structure with a lattice period in the hundreds of nm – they are considered 3D photonic crystals – which is achieved by the self-assembly of the liquid crystal molecules into periodic cubic structures, producing bright selective Bragg reflections. This all-optical approach allows for a seamless fast remotely controlled optical switch between two 3D photonic crystals in different cubic crystal systems and between a photonic crystal and an isotropic matrix. All-optical photonic systems such as these hold great promise for the development of tunable and efficient photonic devices, specifically the dynamic optical filters and sensors, as they enable light-driven modulation and sensing applications with unprecedented versatility.
Permanent Link: https://hdl.handle.net/11104/0353530