Time-dependent Monte Carlo modeling of fluorescent optical antennas for optical wireless communication

Year: 2026

Authors: Doria S., Aresti M., Meucci M., Di Donato M., Calamante M., Franchi D., Pucci A., Battisti A., Fattori M., Catani J.

Autors Affiliation: Inst Chem Organometall Cpds CNR ICCOM, Via Madonna Piano 10, I-50019 Sesto Fiorentino, Italy; Natl Inst Opt CNR INO, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; Phys & Astron Dept, via Giovanni Sansone 1, I-50019 Sesto Fiorentino, Italy; European Lab Non Linear Spect LENS, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dept Chem Ugo Schiff, via Lastruccia 13, I-50019 Sesto Fiorentino, Italy; Univ Pisa, Dept Chem & Ind Chem, via Moruzzi 13, I-56124 Pisa, Italy; Nanosci Inst CNR, NEST SNS, Piazza San Silvestro 12, I-56127 Pisa, Italy.

Abstract: We introduce a time-resolved Monte Carlo simulation framework for designing fluorescent concentrators (FCs) as optical antennas (OAs) in optical wireless communication (OWC). Unlike traditional analytical models, it captures both collection efficiency and temporal response, enabling optimization of dye concentration and geometry. The model is validated against experimental data obtained for two sets of OAs based on Lumogen Red 305 (LR305) and DQ1 dyes over a wide range of fluorophore concentrations, and it consistently reproduces the measured behavior by explicitly accounting for the interplay between key FC parameters, including fluorescence lifetime, quantum yield, absorption and emission spectra, and reabsorption dynamics. This approach not only provides an accurate characterization of FC performance for OWC but also represents a powerful tool for tailoring FCs to specific OWC applications.

Journal/Review: OPTICS EXPRESS

Volume: 34 (19)      Pages from: 35590  to: 35611

More Information: European Union-Next Generation EU (Integrated infrastructure initiative in Photonic and Quantum Sciences I-PHOQS under Grant Nos. IR0000016, ID D2B8D520, CUP B53C22001750006) ; and in part by the project FLUOCOM under the initiative Progetti@CNR by CNR.
KeyWords: Luminescent Solar Concentrators; Light Transport; Stokes-shift; Wide-field; Efficiency
DOI: 10.1364/OE.601352