Marek Karzel
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View article: Polariton-Induced Transparency in Multiple Quantum Wells Probed by Time Domain Brillouin Scattering
Polariton-Induced Transparency in Multiple Quantum Wells Probed by Time Domain Brillouin Scattering Open
The interference of the incident light reflected from the surface of a medium and from a picosecond strain pulse propagating through it results in temporal oscillations of the reflected intensity. This phenomenon, called time-domain Brillo…
View article: Polariton probing of attometer displacement and nanoscale strain in ultrashort acoustic pulses
Polariton probing of attometer displacement and nanoscale strain in ultrashort acoustic pulses Open
Atomic displacement and lattice strain are inextricably linked in most ultrafast processes in solids, such as in optically induced phase transition [1,2] or demagnetization [3]. The visualization of lattice dynamics with femtosecond tempor…
View article: Optical spin orientation of localized electrons and holes interacting with nuclei in an FA$_{0.9}$Cs$_{0.1}$PbI$_{2.8}$Br$_{0.2}$ perovskite crystal
Optical spin orientation of localized electrons and holes interacting with nuclei in an FA$_{0.9}$Cs$_{0.1}$PbI$_{2.8}$Br$_{0.2}$ perovskite crystal Open
Optical orientation of carrier spins by circularly polarized light is the basic concept and tool of spin physics in semiconductors. We study the optical orientation of electrons and holes in a crystal of the FA$_{0.9}$Cs$_{0.1}$PbI$_{2.8}$…
View article: Spin‐Flip Raman Scattering on Electrons and Holes in Two‐Dimensional (PEA)<sub>2</sub>PbI<sub>4</sub> Perovskites
Spin‐Flip Raman Scattering on Electrons and Holes in Two‐Dimensional (PEA)<sub>2</sub>PbI<sub>4</sub> Perovskites Open
The class of Ruddlesden–Popper type (PEA) 2 PbI 4 perovskites comprises 2D structures whose optical properties are determined by excitons with a large binding energy of about 260 meV. It complements the family of other 2D semiconductor mat…