[17p-S4_203-1~12] 3.9 Optical quantum physics and technologies

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17p-S4_203-7] Parallel simultaneous correlation measurements of photon pairs for quantum entangled two-photon absorption microscope

〇(M1)Yuya Takamoto¹, Naru Yoneda^1,2, Kanako Yoshimura¹, Osamu Matoba^1,2 (1.Kobe Univ., 2.Kobe Univ. OaSIS)

Keywords:

Entangled two-photon absorption,Quantum imaging

A quantum-entangled two-photon absorption (ETPA) microscope, which uses entangled photon pairs for excitation, enables fluorescence imaging at lower excitation intensities than classical two-photon excitation microscopy. However, the spatial simultaneity of photon pairs at the sample plane has not been evaluated. In this study, we assessed photon-pair simultaneity at the sample plane using parallel simultaneous correlation measurements. The minus-coordinate projection of the correlation function exhibited a peak distributed over multiple regions, suggesting a useful metric for diagnosing and correcting optical aberrations and pump-beam inhomogeneity.