This study investigates the multiphoton recording of fluorescent marks in LHC-480: PMMA films using a 750-800 nm laser. The chromone-based organic compound LHC-480 was chosen for its unique properties, including high luminescence quantum yield and two-photon absorption cross-section. The study involved preparing LHC-480: PMMA polymer films using spin coating and solution casting methods. Single-photon recording was achieved using an Ultraviolet laser diode, and multiphoton recording was carried out using a second harmonic generation of a fiber femtosecond laser. Luminescence spectra were measured and analyzed under various conditions. The results provide insights into dynamics of phototransformation of chromone derivatives, which can aid in the development of optical memory systems.
Алсалама А.М. (науч. рук. Сергеев А.Н.) INVESTIGATION OF MULTIPHOTON RECORDING OF FLUORESCENT MARKS IN LHC-480: PMMA FILMS BY 750-800 nm LASER // Сборник тезисов докладов конгресса молодых ученых. Электронное издание. – СПб: Университет ИТМО, [2023]. URL: https://kmu.itmo.ru/digests/article/11201