Quantum optics and their applications (1)

[ALPS24-03] Pathway selectivity in time-resolved spectroscopy by coincidence counting of quantum entangled photons

*Yuta Fujihashi¹, Akihito Ishizaki^2,3, Ryosuke Shimizu¹ (1. The University of Electro-Communications, 2. Institute for Molecular Science, 3. SOKENDAI)

We theoretically propose time-resolved spectroscopy based on the coincidence counting of entangled photon pairs. We demonstrate that the use of two-photon counting detection enables the selective elimination of the excited-state absorption signal.