391 citations · 765 across the 22 of their papers we have counts for
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Second-order Raman and anharmonic lattice dynamics in lead-halide perovskites
Chao Shen, Florian Kluibenschedl, Ayan A. Zhumekenov +4
We explore the microscopic origin of THz-driven lattice dynamics in methylammonium lead bromide CHNHPbBr using two-dimensional THz Kerr-effect spectroscopy. The analysi…
Alignment-free ultra-broadband parametric frequency conversion in lead-halide perovskites
Abhishek Shiva Kumar, Dusan Lorenc, Ayan A. Zhumekenov +2
Lead-halide perovskites were demonstrated to exhibit some of the largest known optical nonlinearities, yet their potential for frequency conversion remains largely untapped. Here w…
Disentangling Electronic and Ionic Nonlinear Polarization Effects in the THz Kerr Response of LaAlO
Chao Shen, Maximilian Frenzel, Sebastian F. Maehrlein +1
Nonlinear responses to intense terahertz (THz) fields provide unique insights into complex dynamics of contemporary material systems. However, the interpretation of the obtained da…
Spontaneous flexoelectricity in cubic lead-halide perovskite MAPbBr
Dmytro Rak, Dusan Lorenc, Ayan A. Zhumekenov +2
Lead-halide perovskites exhibit remarkable efficiency in photovoltaics, driven by exceptionally long carrier diffusion lengths and recombination times. Paradoxically, this performa…