5 papers
High Sensitivity Transient Holographic Full-Polarization Microscopy
Julia A. Gessner, Philipp Kollenz, Godwin Maliyekkal +6
The polarization state of light provides direct access to ultrafast electronic, magnetic, and structural dynamics in materials. Transient wide-field microscopy with simultaneous am…
Constraining Inflation with Little Red Dots
Dionysios Karagiannis, P. Daniel Meerburg
Primordial non-Gaussianity is a direct probe of the physics of inflation. The tightest bounds still come from the cosmic microwave background, but large-scale structure is rapidly…
Composition Anisotropy Drives Large Bulk Photovoltaic Fields Along the Non-polar Vertical Direction in 2D Hybrid Perovskite Ferroelectrics
Yuzhong Hu, Andrii Shcherbakov, Jonathan Zerhoch +7
The photovoltaic electric field of the bulk photovoltaic effect (BPE) reflects the intrinsic ability of ferroelectrics to separate photoexcited excitons into electrons and holes, a…
Ultrafast light-induced formation of a metastable hidden state in bismuth vanadate
Viktoria F. Kunzelmann, Verena Streibel, Philip Schwinghammer +24
Bismuth vanadate (BiVO) is a key photocatalyst for solar fuel applications, yet fundamental questions remain regarding the nature of photogenerated polaronic states and the lat…
Light-induced optical orientation of magnetic moments in transition-metal doped hybrid metal halide perovskites
Stanislav Bodnar, Jonathan Zerhoch, Shangpu Liu +4
Using optical orientation to manipulate magnetic moments in matter with light is a key objective in opto-spintronics, however, realizations of such control on ultrafast timescales…