21 citations · 47 across the 6 of their papers we have counts for
6 papers
Efficient broadband terahertz generation by above band-gap excitation of the pyroelectric ZnSnN2
T. S. Seifert, H. Hempel, O. Gückstock +10
Terahertz (THz) radiation is a powerful probe of low-energy excitations in all phases of matter. However, it remains a challenge to find materials that efficiently generate THz rad…
Route towards classical frustration and band flattening via optical lattice distortion
Pil Saugmann, José Vargas, Yann Kiefer +4
We propose and experimentally explore a method for realizing frustrated lattice models using a Bose-Einstein condensate held in an optical square lattice. A small lattice distortio…
Quantum degenerate Fermi gas in an orbital optical lattice
M. Hachmann, Y. Kiefer, J. Riebesehl +2
Spin-polarized samples and spin mixtures of quantum degenerate fermionic atoms are prepared in selected excited Bloch bands of an optical chequerboard square lattice. For the spin-…
Orbital many-body dynamics of bosons in the second Bloch band of an optical lattice
J. Vargas, M. Nuske, R. Eichberger +3
A Bose-Einstein condensate (BEC) of rubidium atoms is prepared in one of two degenerate energy minima in the second Bloch band of an optical square lattice. A subsequent oscillatio…
Metastable order protected by destructive many-body interference
M. Nuske, J. Vargas, M. Hachmann +3
The phenomenon of metastability can shape dynamical processes on all temporal and spatial scales. Here, we induce metastable dynamics by pumping ultracold bosonic atoms from the lo…
Effects of disorder on carrier transport in CuSnS
Lauryn L. Baranowski, Kevin McLaughlin, Pawel Zawadzki +7
In recent years, further improvements in the efficiency of CuZnSn(S,Se) photovoltaic devices have been hampered due to several materials issues, including cation disorder.…