[9p-B12-1~8] Observation of the dynamics in the cell with STED

1:40 PM - 2:10 PM JST(4:40 AM - 5:10 AM UTC)

[9p-B12-2] Time-dependence of Stimulated Emission Depletion in X-ray excited Emission

〇Takeo Ejima^1,2 (1.Tohoku Univ., SRIS, 2.Tohoku Univ., IMRAM)

Keywords:

Stimulated Emission Depletion,X-ray,scintillator

Luminescence induced by visible excitation saturates at lower intensities for longer luminescence lifetimes; STED microscopy, which exploits this property, achieves spatial resolution beyond the diffraction limit in the visible spectral region.When extending the STED concept to X-ray–excited scintillator luminescence, competition is expected among X-ray–induced luminescence, stimulated emission, and multiphoton absorption–induced luminescence; these processes are difficult to distinguish under simple simultaneous irradiation. In this study, we demonstrate the potential to discriminate among them using time-resolved luminescence measurements.