Optomechanical fluorescence tuning in doped polymer thin films
Abstract
We report optomechanical fluorescence tuning of organic fluorophores in PMMA polymer thin films induced by optically driven radiation pressure. Low-frequency modulation of the optical pressure generates mechanical vibrations in the film, leading to resonant deformation and significant thinning at the mechanical resonance frequency. When fluorophores are embedded in the polymer matrix, this optomechanical response modifies their local environment through strain and shear effects, resulting in a measurable tuning of the fluorescence spectrum. At resonance, we observe a broadening of the main emission band together with the emergence of a long-wavelength tail. These spectral modifications are attributed to mechanically induced variations of the local polymer environment affecting the distribution of emissive and ground states of the fluorophores. Overall, these results demonstrate optomechanical modification of fluorescence in soft luminescent materials and provide a basis for further studies of mechanically tunable photonic systems.
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BibTeX
@article{emile2026optomechanical,
title = {{Optomechanical fluorescence tuning in doped polymer thin films}},
author = {Janine Emile and Pierre-Antoine Bouit and Jean-Christophe Le Breton and Julien Morin and Olivier Emile},
journal = {Results in Materials},
year = {2026},
month = sep,
doi = {10.1016/j.rinma.2026.101060},
url = {https://hal.science/hal-05766601v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Optomechanical fluorescence tuning in doped polymer thin films
AU - Janine Emile
AU - Pierre-Antoine Bouit
AU - Jean-Christophe Le Breton
AU - Julien Morin
AU - Olivier Emile
PY - 2026
DA - 2026/09/30
JO - Results in Materials
DO - 10.1016/j.rinma.2026.101060
UR - https://hal.science/hal-05766601v1
AB - We report optomechanical fluorescence tuning of organic fluorophores in PMMA polymer thin films induced by optically driven radiation pressure. Low-frequency modulation of the optical pressure generates mechanical vibrations in the film, leading to resonant deformation and significant thinning at the mechanical resonance frequency. When fluorophores are embedded in the polymer matrix, this optomechanical response modifies their local environment through strain and shear effects, resulting in a measurable tuning of the fluorescence spectrum. At resonance, we observe a broadening of the main emission band together with the emergence of a long-wavelength tail. These spectral modifications are attributed to mechanically induced variations of the local polymer environment affecting the distribution of emissive and ground states of the fluorophores. Overall, these results demonstrate optomechanical modification of fluorescence in soft luminescent materials and provide a basis for further studies of mechanically tunable photonic systems.
SN - 2590-048X
ER -