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The strong coupling between molecules and photons in resonant cavities offers a new toolbox to manipulate photochemical reactions. While the quenching of photochemical reactions in the strong coupling regime has been demonstrated before,…

Mesoscale and Nanoscale Physics · Physics 2019-12-24 Jacop Fregoni , Giovanni Granucci , Maurizio Persico , Stefano Corni

Strong light-matter interactions are gaining importance in controlling the photoswitching behavior of molecules exhibiting bistability. Here, we used the strategy of electronic strong coupling of both the E and Z-isomers of azopyrrole…

When the interaction between a molecular system and confined light modes in an optical or plasmonic cavity is strong enough to overcome the dissipative process, hybrid light-matter states (polaritons) become the fundamental excitations in…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Yu Zhang , Tammie Nelson , Sergei Tretiak

Strong light-matter coupling gives rise to polaritons - hybrid excitations whose mixed photonic and matter character enables control over optical, electronic and chemical properties. This Feature Article surveys the main architectures…

Molecular polaritons are hybrid states of photonic and molecular character that form when molecules strongly interact with light. Strong coupling tunes energy levels and importantly, can modify molecular properties (e.g. photoreaction…

Chemical Physics · Physics 2023-02-14 Francesca Fassioli , Kyu Hyung Park , Sarah E. Bard , Gregory D. Scholes

Molecular polaritons, hybrid light-matter states formed from the strong coupling of molecular transitions and discrete photonic modes, are a compelling platform for optical control of chemical reactivity. Despite the origins of the field of…

Chemical Physics · Physics 2026-02-11 Jane C. Nelson , Trevor H. Wright , Neo Lin , Madeline Rohde , Marissa L. Weichman

Molecular polaritons arise when molecules interact so strongly with light that they become entangled with each other. This light-matter hybridization alters the chemical and physical properties of the molecular system and allows chemical…

Chemical Physics · Physics 2023-07-28 Tor S. Haugland , John P. Philbin , Tushar K. Ghosh , Ming Chen , Henrik Koch , Prineha Narang

Polaritonic chemistry offers the possibility of modifying molecular properties and even influencing chemical reactivity through strong coupling between vibrational transitions and confined light modes in optical cavities. Despite…

Chemical Physics · Physics 2025-05-16 Thomas Schnappinger , Markus Kowalewski

Chemical manifestations of strong light-matter coupling have been recently subject of intense experimental and theoretical studies. Here we review the present status of this field. Section 1 is an introduction to molecular polaritonics and…

Chemical Physics · Physics 2021-12-15 Tao E. Li , Bingyu Cui , Joseph E. Subotnik , Abraham Nitzan

Intermixed light-matter quasiparticles - polaritons - possess unique optical properties owned to their compositional nature. These intriguing hybrid states have been extensively studied over the past decades in a wide range of realizations…

The second law of photochemistry states that in most cases, no more than one molecule is activated for an excited-state reaction for each photon absorbed by a collection of molecules. In this work, we demonstrate that it is possible to…

Chemical Physics · Physics 2017-10-04 Javier Galego , Francisco J. Garcia-Vidal , Johannes Feist

The hybridization of light and matter excitations in the form of polaritons has enabled major advances in understanding and controlling optical nonlinearities. Entering the quantum regime of strong interactions between individual photons…

Light-matter interactions can occur when an ensemble of molecular resonators is placed in a confined electromagnetic field. In the strong coupling regime the rapid exchange of energy between the molecules and the electromagnetic field…

Mesoscale and Nanoscale Physics · Physics 2020-08-10 Philip A. Thomas , Wai Jue Tan , Henry A. Fernandez , William L. Barnes

Several years ago, it was shown that strong coupling between an electronic transition in organic molecules and a resonant photonic structure can modify the electronic landscape of the molecules and affect their chemical behavior. Since…

Polariton chemistry exploits the strong interaction between quantized excitations in molecules and quantized photon states in optical cavities to affect chemical reactivity. Molecular polaritons have been experimentally realized by the…

Chemical Physics · Physics 2023-09-06 Jonathan J. Foley , Jonathan F. McTague , A. Eugene DePrince

Polaritonic chemistry investigates the possible modification of chemical and photochemical reactions by means of strong light-matter coupling in optical cavities, as demonstrated in numerous experiments over the last few years. These…

Quantum Physics · Physics 2025-07-30 Lucas Borges , Thomas Schnappinger , Markus Kowalewski

Polaritonic chemistry exploits strong light-matter coupling between molecules and confined electromagnetic field modes to enable new chemical reactivities. In systems displaying this functionality, the choice of the cavity determines both…

Optics · Physics 2022-08-25 Jacopo Fregoni , Francisco J. García-Vidal , Johannes Feist

Molecular polaritons are the optical excitations which emerge when molecular transitions interact strongly with confined electromagnetic fields. Increasing interest in the hybrid molecular-photonic materials that host these excitations…

Mesoscale and Nanoscale Physics · Physics 2018-02-26 Raphael F. Ribeiro , Luis A. Martínez-Martínez , Matthew Du , Jorge Campos-Gonzalez-Angulo , Joel Yuen-Zhou

Coupling photons to Rydberg excitations in a cold atomic gas yields unprecedentedly large optical nonlinearities at the level of individual light quanta, where the formation of nearby dark-state polaritons is blocked by the strong…

Quantum Physics · Physics 2017-07-19 Callum R. Murray , Thomas Pohl

In the last decade, much theoretical research has focused on studying the strong coupling between organic molecules (or quantum emitters, in general) and light modes. The description and prediction of polaritonic phenomena emerging in this…

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