What (else) does transient optical spectroscopy of organic microcavities measure?

Matthew Y. Sfeir; Bin Liu; Vinod M. Menon

doi:10.1117/12.2594716

1 August 2021 What (else) does transient optical spectroscopy of organic microcavities measure?

Matthew Y. Sfeir, Bin Liu, Vinod M. Menon

Proceedings Volume 11799, Physical Chemistry of Semiconductor Materials and Interfaces XX; 1179904 (2021) https://doi.org/10.1117/12.2594716
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

The concept of modifying molecular dynamics in strongly coupled exciton-polariton systems is an emerging topic in photonics. However, there is no consensus on the types of molecular systems whose dynamics can be modified using strong coupling. These open questions stem from persistent uncertainties concerning the lifetime and conversion dynamics of exciton-polaritons and localized excited states as well as the proper way to measure such interactions in the time-domain. Here, we provide a framework for measuring dynamical interactions between exciton-polaritons and a diverse manifold of singlet, triplet, and multiexciton states, using a model molecular spin conversion (singlet fission) system that is strongly coupled to an optical microcavity. In addition to the usual population dynamics, transient optical measurements on microcavities are sensitive to transient modifications of the exciton-polariton transition energies, exciton-photon coupling conditions, and thermal excitations of the cavity mirrors.

Conference Presentation

Citation Download Citation

Matthew Y. Sfeir, Bin Liu, and Vinod M. Menon "What (else) does transient optical spectroscopy of organic microcavities measure?", Proc. SPIE 11799, Physical Chemistry of Semiconductor Materials and Interfaces XX, 1179904 (1 August 2021); https://doi.org/10.1117/12.2594716

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