Collective Rayleigh Scattering from Molecular Ensembles under Strong Coupling

Adina Golombek, Mukundakumar Balasubrahmaniyam, Maria Kaeek, Keren Hadar, Tal Schwartz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Rayleigh scattering is usually considered to be the elastic scattering of photons from subwavelength physical objects, such as small particles or molecules. Here, we present a quantitative spectroscopic study of the scattering properties of molecules embedded in an optical cavity under strong coupling conditions, where the collective interaction between the molecules and the cavity gives rise to composite light-matter excitations known as cavity polaritons. We show that the polaritonic states exhibit strong resonant Rayleigh scattering, which depends on both the coupling strength and detuning and reaching ∼25% efficiency. Since the polaritonic wave functions in such systems are delocalized, our observations correspond to the collective scattering of each photon from a large ensemble of molecules.

Original languageEnglish
Pages (from-to)3803-3808
Number of pages6
JournalJournal of Physical Chemistry Letters
Issue number10
StatePublished - 21 May 2020


FundersFunder number
Israel Science Foundation1435/19
Tel Aviv University
Council for Higher Education
Wolfson Family Charitable TrustPR/ec/20419


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