Bulletin of the American Physical Society
54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 68, Number 7
Monday–Friday, June 5–9, 2023; Spokane, Washington
Session N01: Poster Session II (4:00pm-6:00pm, PT)
4:00 PM,
Wednesday, June 7, 2023
Room: Exhibit Hall C
Abstract: N01.00059 : Properties of generated photon-pairs via ladder-type configurations with different excited levels in cesium vapor cell
Presenter:
HeeWoo Kim
(Pusan National University)
Authors:
HeeWoo Kim
(Pusan National University)
Han Moon
(Pusan Natl Univ)
Hansol Jeong
(Department of physics, Pusan National University)
Jiho Park
(Pusan Natl Univ)
However, because it is difficult to change the optical properties of atom, we have to select energy levels of atom carefully and design the system to take advantage of geometric structure. In this work, experiments were conducted using two ladder-type energy level structures, 133Cs 6S1/2-6P3/2-8S1/2 and 6S1/2-6P3/2-6D5/2 transition, with warm cesium vapor cell. We measured single photon counts and time correlation between signal and idler photons varing pump and coupling laser power.
We can calculate the time correlation of photon-pair sources in 6S1/2-6P3/2-8S1/2 and 6S1/2-6P3/2-6D5/2 transitions. In the 6S1/2-6P3/2-8S1/2 case, we observed the quantum beats of the temporal biphoton waveform of the photon pair due to the multiple channels of the SFWM process relating to the hyperfine states of the intermediate 6P3/2 state in the 6S1/2-6P3/2-8S1/2 transition.
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