Year: 2024
Type: article
Abstract: An unprecedented organic Fermat spiral optical waveguide (FSOW) self-transducing green fluorescence is fabricated using a pseudo-plastic (E)−1-(((5-bromopyridin-2-yl)imino)methyl)naphthalene-2-ol (BPyIN) crystal. A 1.618-millimeter-long crystal is initially bent into a hairpin-like bent waveguide. Later, a meticulous mechanophotonic strategy is employed to sculpt the hairpin-like bent waveguide into the Fermat spiral geometry, covering a compact area of$330\times 238~\mu $m2. The optical signal in FSOW survives two sharp 180° turns to produce optical output. The remarkably low bending-induced optical loss in FSOW can be ascribed to the smooth-defect-free surface morphology of the crystal. The development of such versatile optical components capable of transducing light through sharp bends is pivotal for realizing large-scale all-organic photonic circuits.
Institution: University of Hyderabad
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Award: G876022463
OpenAlex ID: W4401507668