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 S02: Focus Session: Nonclassical States of Light
10:30 AM–12:30 PM,
Thursday, June 8, 2023
Room: Ballroom 111 A
Chair: Arne Schwettmann, Univ of Oklahoma
Abstract: S02.00002 : Progress in the assessment and certification of entangled two-photon absorption in organic compounds.*
11:00 AM–11:30 AM
Presenter:
Alfred U'Ren
(UNAM Mexico)
Authors:
Alfred U'Ren
(UNAM Mexico)
Samuel Corona Aquino
(Universidad Nacional Autonoma de Mexico)
Aulide Martinez Tapia
(Universidad Nacional Autonoma de Mexico)
Omar Calderon
(Universidad del Valle)
Roberto Leon Montiel
(Universidad Nacional Autonoma de Mexico)
Mayte Li Gomez
(University of Calgary)
Pilar Carreo Castro
(Universidad Nacional Autónoma de México)
Violeta Alvarez Venicio
(Universidad Nacional Autónoma de México)
Chenglong You
(Louisiana State University)
Rui-Bo Jin
(Wuhan Institute of Technology)
Omar Magana-Loaiza
(Lousiana State University)
Shi-Hai Dong
(Research Center for Quantum Physics)
Hector Cruz Ramirez
(Universidad Nacional Autonoma de Mexico)
In our work we first provide a thorough experimental study of eTPA in the organic molecules Rhodamine B (RhB) and zinc tetraphenyl-porphirin (ZnTPP). We determine the effects of a controllable temporal delay between the signal and idler photons on the strength of the eTPA signal, and on the other hand we use two concurrent and equivalent detection systems with and without the sample in place as a useful experimental check. Through this experimental setup we find that, surprisingly, the purported ETPA signal is not suppressed for a temporal delay much greater than the characteristic photon-pair temporal correlation time. While our results reproduce the previous findings from other authors, our full analysis indicates that the signal observed is not actually due to ETPA but is likely due to linear losses.
Second, focusing on transmission measurements of eTPA, we theoretically explore three different two-photon quantum interferometers in the context of certifying eTPA. We demonstrate that the so-called N00N-state configuration is the only one amongst those considered which is insensitive to linear (single-photon) losses. Remarkably, our results show that N00N states may become a potentially powerful tool for quantum spectroscopy, and place them as a strong candidate for the certification of eTPA in an arbitrary sample.
*AU thankfully acknowledges support from AFOSR grant FA9550-21-1-0147, from UNAM-PAPIIT grant IN103521, and fromCONACyT grant 217559.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2025 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700