Issue 31, 2020

Entangled light–matter interactions and spectroscopy

Abstract

Entangled photons exhibit non-classical light–matter interactions that create new opportunities in materials and molecular science. Notably, in entangled two-photon absorption, the intensity-dependence scales linearly as if only one photon was present. The entangled two-photon absorption cross section approaches but does not match the one-photon absorption cross section. The entangled two-photon cross section also does not follow classical two-photon molecular design motifs. Questions such as these seed the rich but nascent field of entangled light–matter interactions. In this perspective, we use the experimental developments in entangled photon spectroscopy to outline the current status of the field. Now that the fundamental tools are outlined, it is time to start the exploration of how materials, molecules, and devices can control or utilize interactions with entangled photons.

Graphical abstract: Entangled light–matter interactions and spectroscopy

Article information

Article type
Perspective
Submitted
13 svi 2020
Accepted
19 svi 2020
First published
19 svi 2020

J. Mater. Chem. C, 2020,8, 10732-10741

Author version available

Entangled light–matter interactions and spectroscopy

S. Szoke, H. Liu, B. P. Hickam, M. He and S. K. Cushing, J. Mater. Chem. C, 2020, 8, 10732 DOI: 10.1039/D0TC02300K

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