Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Ulrich Höfer"'
Publikováno v:
The Journal of Physical Chemistry C. 126:12728-12734
Autor:
Sang-Hyuk Park, Sehyuk Lee, Kunie Ishioka, Christopher J. Stanton, Chul-Sik Kee, Andreas Beyer, Ulrich Höfer, Wolfgang Stolz, Kerstin Volz, Young-Dahl Jho
Publikováno v:
Optics express. 30(13)
We report on new THz electromagnetic emission mechanism from deformational coupling of acoustic (AC) phonons with electrons in the propagation medium of non-polar Si. The epicenters of the AC phonon pulses are the surface and interface of a GaP trans
Autor:
Cosimo Gorini, S. Schlauderer, Rupert Huber, Ferdinand Evers, Leonard Weigl, Vanessa Junk, Ulrich Höfer, Oleg E. Tereshchenko, Jens Güdde, Jan Wilhelm, Jack Crewse, P. Grössing, Konstantin A. Kokh, Dmitry Afanasiev, C. P. Schmid, Niklas Hofmann, Klaus Richter, Suguru Ito, Manuel Meierhofer
Publikováno v:
Nature. 593:385-390
When intense lightwaves accelerate electrons through a solid, the emerging high-order harmonic (HH) radiation offers key insights into the material1,2,3,4,5,6,7,8,9,10,11. Sub-optical-cycle dynamics—such as dynamical Bloch oscillations2,3,4,5, quas
Publikováno v:
The Journal of Physical Chemistry C. 124:5270-5274
Tip-induced hopping of the ethyl fragment (−C2H5) of diethyl ether molecules reacted on Si(001) was shown to be a field-driven process. Although the hopping rate increases continuously with increas...
Publikováno v:
Nanoscale Horizons. 5:1603-1609
Heterostructures of two-dimensional transition metal dichalcogenides (TMD) have shown promise for various optoelectronic and novel valleytronic applications. Due to their type-II band alignment, photoexcited electrons and holes can separate into diff
Autor:
Kunie Ishioka, Ethan Angerhofer, Christopher J. Stanton, Gerson Mette, Kerstin Volz, Wolfgang Stolz, Ulrich Höfer
Transient reflectivity spectroscopy is widely used to study ultrafast carrier- and phonon-dynamics in semiconductors. In their heterostructures, it is often not straightforward to distinguish contributions to the signal from the various layers. In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7efe5d623378b57bf058d50b16b98d8
http://arxiv.org/abs/2110.03899
http://arxiv.org/abs/2110.03899
Autor:
Jonas E, Zimmermann, Marleen, Axt, Fabian, Mooshammer, Philipp, Nagler, Christian, Schüller, Tobias, Korn, Ulrich, Höfer, Gerson, Mette
Publikováno v:
ACS nano. 15(9)
Two-dimensional transition metal dichalcogenides offer a fascinating platform for creating van der Waals heterojunctions with exciting physical properties. Because of their typical type-II band alignment, photoexcited electrons and holes can separate
Autor:
Robert, Wallauer, Raul, Perea-Causin, Lasse, Münster, Sarah, Zajusch, Samuel, Brem, Jens, Güdde, Katsumi, Tanimura, Kai-Qiang, Lin, Rupert, Huber, Ermin, Malic, Ulrich, Höfer
Publikováno v:
Nano letters. 21(13)
The dynamics of momentum-dark exciton formation in transition metal dichalcogenides is difficult to measure experimentally, as many momentum-indirect exciton states are not accessible to optical interband spectroscopy. Here, we combine a tunable pump
Autor:
Robert Wallauer, Raül Perea-Causín, Katsumi Tanimura, Sarah Zajusch, Rupert Huber, Kai-Qiang Lin, Ermin Malic, Ulrich Höfer, Lasse Münster, Jens Güdde, Samuel Brem
Publikováno v:
Nano Letters
The dynamics of exciton formation in transition metal dichalcogenides is difficult to measure experimentally, since many momentum-indirect exciton states are not accessible to optical interband spectroscopy. Here, we combine a tuneable pump, high-har
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a3ec34045e56c09ba5ca04cabebc271
https://epub.uni-regensburg.de/46391/
https://epub.uni-regensburg.de/46391/
Autor:
Christoph Lange, Rupert Huber, S. Schlauderer, J. Reimann, Ulrich Höfer, Carmen Roelcke, Jens Güdde, Mackillo Kira, Jascha Repp, S. W. Koch, Lukas Z. Kastner, C. P. Schmid
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Lightwave electronics has pushed the control of condensed matter to unprecedented time scales. By harnessing the carrier wave of intense light pulses as an alternating voltage [1] – [12] , electrons can be driven faster than a cycle of light, openi