Author

Kenji Watanabe

2 papers indexed here

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Preprint Oct 2026

Terahertz nanoscopy of quantum-geometric photovoltaics in bilayer graphene

The bulk photovoltaic effect (BPVE) provides a direct link between quantum geometry and nonlinear light-matter interactions, yet conventional far-field measurements cannot disentangle BPVE from contact- and interface-induced photothermoelectric signals. Here we develop cryogenic, polarization-sensitive terahertz micros...

B. Borodin, Jiang-Xu Li, Xuan-Pu Zhang et al. · 0 citations

Oct 2026

Fast Pump-Probe Microscopy Imaging with Asynchronous Optical Sampling

Asynchronous optical sampling (ASOPS) allows rapid collection of transient absorption/reflection data over wide time scales with a high dynamic range in both time and signal magnitude. In this paper, a method for recording transient images using ASOPS is presented based on time-gated integration of the transient sign...

Ajinkya Shingote, Naomi Ross, Janak Bhandari et al. · Journal of Physical Chemistr... · 0 citations