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Electric-field-resolved detection of localized surface plasmons at petahertz-scale frequencies
Dmitry A. Zimin, Ihor Cherniukh, Simon C. Böhme +3
We present a novel electric-field-resolved approach for probing ultrafast dynamics of localized surface plasmons in metallic nanoparticles. The electric field of the broadband carr…
Scaling of Hybrid QDs-Graphene Photodetectors to Subwavelength Dimension
Gökhan Kara, Patrik Rohner, Erfu Wu +6
Emerging colloidal quantum dot (cQD) photodetectors currently challenge established state-of-the-art infrared photodetectors in response speed, spectral tunability, simplicity of s…
Disentangling the Effects of Structure and Lone-Pair Electrons in the Lattice Dynamics of Halide Perovskites
Sebastián Caicedo-Dávila, Adi Cohen, Silvia G. Motti +8
Metal halide perovskites have shown great performance as solar energy materials, but their outstanding optoelectronic properties are paired with unusually strong anharmonic effects…
Exciton-polaritons in CsPbBr crystals revealed by optical reflectivity in high magnetic fields and two-photon spectroscopy
Dmitri R. Yakovlev, Scott A. Crooker, Marina A. Semina +5
Cesium lead bromide (CsPbBr) is a representative material of the emerging class of lead halide perovskite semiconductors that possess remarkable optoelectronic properties. Its…
Strong light-matter coupling in lead halide perovskite quantum dot solids
Clara Bujalance, Laura Calio, Dmitry N. Dirin +6
Strong coupling between lead halide perovskite materials and optical resonators enables both the polaritonic control of the photophysical properties of these emerging semiconductor…
Giant optical orientation of exciton spins in lead halide perovskite crystals
Natalia E. Kopteva, Dmitri R. Yakovlev, Eyüp Yalcin +11
Optical orientation of carrier spins by circularly polarized light is the basis of spin physics in semiconductors. Here, we demonstrate strong optical orientation of 85\%, approach…
Long-lived exciton coherence in mixed-halide perovskite crystals
Stefan Grisard, Artur V. Trifonov, Ivan A. Solovev +5
Compositional engineering of the optical properties of hybrid organic-inorganic lead halide perovskites is one of the cornerstones for the realization of efficient solar cells and…
Spin-Flip Raman Scattering on Electrons and Holes in Two-Dimensional (PEA)PbI Perovskites
C. Harkort, D. Kudlacik, N. E. Kopteva +6
The class of Ruddlesden-Popper type (PEA)PbI perovskites comprises two-dimensional (2D) structures whose optical properties are determined by excitons with a large binding…
Weak dispersion of exciton Landé factor with band gap energy in lead halide perovskites: Approximate compensation of the electron and hole dependences
N. E. Kopteva, D. R. Yakovlev, E. Kirstein +11
The photovoltaic and optoelectronic properties of lead halide perovskite semiconductors are controlled by excitons, so that investigation of their fundamental properties is of crit…
Evidencing the squeezed dark nuclear spin state in lead halide perovskites
E. Kirstein, D. S. Smirnov, E. A. Zhukov +6
Coherent many-body states are highly promising for robust and scalable quantum information processing. While far-reaching theoretical predictions have been made for various impleme…