Borsch, M. and Schmid, C. P. and Weigl, L. and Schlauderer, S. and Hofmann, N. and Lange, C. and Steiner, J. T. and Koch, S. W. and Huber, R. and Kira, M. (2020) Super-resolution lightwave tomography of electronic bands in quantum materials. SCIENCE, 370 (6521). pp. 1204-1207. ISSN 0036-8075, 1095-9203
Full text not available from this repository. (Request a copy)Abstract
Searching for quantum functionalities requires access to the electronic structure, constituting the foundation of exquisite spin-valley-electronic, topological, and many-body effects. All-optical band-structure reconstruction could directly connect electronic structure with the coveted quantum phenomena if strong lightwaves transported localized electrons within preselected bands. Here, we demonstrate that harmonic sideband (HSB) generation in monolayer tungsten diselenide creates distinct electronic interference combs in momentum space. Locating these momentum combs in spectroscopy enables super-resolution tomography of key band-structure details in situ. We experimentally tuned the optical-driver frequency by a full octave and show that the predicted super-resolution manifests in a critical intensity and frequency dependence of HSBs. Our concept offers a practical, all-optical, fully three-dimensional tomography of electronic structure even in microscopically small quantum materials, band by band.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Mar 2021 08:52 |
| Last Modified: | 05 Mar 2021 08:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43172 |
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