Lecture: Molecules in cavities: topological phases and polariton chemistry

30.10.2017, 10:00

Dr. Joel Yuen Zhou Department of Chemistry and Biochemistry MC 0340, UC San Diego, La Jolla, CA, USA

Place:

Seminar Room A1.500, MPL, Staudtstr. 2, 91058 Erlangen


Abstract:

 

I’ll showcase some opportunities that molecular polaritons offer within chemical physics. First, I’ll describe theoretical models on how topologically nontrivial phases can be realized in molecular polaritons [1,2]. Next, I will discuss some intriguing predictions of photophysical and photochemical properties of molecules upon coupling to confined electromagnetic modes [3,4,5]. These include changes in photoluminescence, energy transfer, and reaction dynamics. We conclude with lessons learned about the relevant time and energy scales to develop general strategies to harness molecular polaritons to control molecular processes.

[1] J. Yuen-Zhou, S. Saikin, N. Yao, and A. Aspuru-Guzik, Topologically protected excitons in porphyrin thin films, Nature Mater. 13, 1026 (2014).

[2] J. Yuen-Zhou, S. K. Saikin, T. Zhu, M. Onbalsi, C. Ross, V. Bulovic, and M. Baldo, Plexcitons: Dirac points and topological modes, Nat. Commun., 11783 (2016).

[3] J. Yuen-Zhou, S. Saikin, V. Menon, van Hove anomalies in plexciton emission, in review in Phys. Rev. Lett.

[4] L. Martínez-Martínez, R. Ribeiro, J. Campos-Angulo, J. Yuen-Zhou, Chemistry at the ultrastrong coupling regime, in review in ACS photonics.

 

[5] R. Ribeiro, L. Martínez-Martínez, M. Du, J. Campos-Angulo, J. Yuen-Zhou, Polariton chemistry: theoretical perspectives, Chemical Science, in preparation.