5 papers
Franson-Interferometric Bounds on Entangled Two-Photon Absorption
Albin Hedse, Sankaran Ramesh, Luis Matheis +7
Entangled photons offer quantum correlations with no classical analogue. In entangled pair two-photon absorption (ETPA), absorption rate is predicted to scale linearly rather than…
Helicity-Resolved Spatiotemporal Mapping of Chiral Plexcitons in Helicoids
Jeong Hyun Han, Sankaran Ramesh, Jaeyeon Jo +10
Plasmon-exciton hybrids, or plexcitons, offer deeply subwavelength light-matter interactions with versatile pathways for energy redistribution. Incorporating chirality into such sy…
Phonon-Mediated Chirality Transfer from Organic Cation to Inorganic lattice in Hybrid Perovskites
Sankaran Ramesh, Prasenjit Mandal, Rafael Araujo +6
Two-dimensional hybrid metal halide perovskites combine spin-orbit coupling, soft lattice dynamics, and molecular tunability, making them promising platforms for chiral optoelectro…
Dimensionality-dependent electronic and vibrational dynamics in low-dimensional organic-inorganic tin halides
Yanmei He, Xinyi Cai, Rafael B. Araujo +7
Photo-induced dynamics of electronic processes in materials are driven by the coupling between electronic and nuclear degrees of freedom. Here we construct 1D and 2D organic-inorga…
Coherent Phonons, Localization and Slow Polaron Formation in Lead-free Gold Perovskite
Sankaran Ramesh, Yonghong Wang, Pavel Chabera +5
Lead-free metal halide perovskites are emerging as less-toxic alternatives to their lead-based counterparts. However, their applicability in optoelectronic devices is limited, and…