Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Susanne C, Kehr"'
Autor:
Joseph Matson, Sören Wasserroth, Xiang Ni, Maximilian Obst, Katja Diaz-Granados, Giulia Carini, Enrico Maria Renzi, Emanuele Galiffi, Thomas G. Folland, Lukas M. Eng, J. Michael Klopf, Stefan Mastel, Sean Armster, Vincent Gambin, Martin Wolf, Susanne C. Kehr, Andrea Alù, Alexander Paarmann, Joshua D. Caldwell
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Structural anisotropy in crystals is crucial for controlling light propagation, particularly in the infrared spectral regime where optical frequencies overlap with crystalline lattice resonances, enabling light-matter coupled quasiparticles
Externí odkaz:
https://doaj.org/article/6aad7bb7628b4b0ab964f8e41dbef747
Publikováno v:
Applied Sciences, Vol 13, Iss 18, p 10429 (2023)
Electric field enhancement mediated through sharp tips in scattering-type scanning near-field optical microscopy (s-SNOM) enables optical material analysis down to the 10-nm length scale and even below. Nevertheless, the out-of-plane electric field c
Externí odkaz:
https://doaj.org/article/ece576cb2b914fc093a0c135f1bb218d
Autor:
Ziheng Yao, Xinzhong Chen, Lukas Wehmeier, Suheng Xu, Yinming Shao, Zimeng Zeng, Fanwei Liu, Alexander S. Mcleod, Stephanie N. Gilbert Corder, Makoto Tsuneto, Wu Shi, Zihang Wang, Wenjun Zheng, Hans A. Bechtel, G. L. Carr, Michael C. Martin, Alex Zettl, D. N. Basov, Xi Chen, Lukas M. Eng, Susanne C. Kehr, Mengkun Liu
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
s-SNOM is a powerful tool, but it is less sensitive to in-plane variations. Here the authors present a method to improve this with a metallic microdisk antenna, which they demonstrate by probing in-plane phonon responses.
Externí odkaz:
https://doaj.org/article/884be5001178415d9991a31549ae378a
Autor:
Flávio H. Feres, Rafael A. Mayer, Lukas Wehmeier, Francisco C. B. Maia, E. R. Viana, Angelo Malachias, Hans A. Bechtel, J. Michael Klopf, Lukas M. Eng, Susanne C. Kehr, J. C. González, Raul O. Freitas, Ingrid D. Barcelos
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Systems that help to enable nanophotonics in the terahertz region are in demand for developing technologies. The authors introduce and study the photonic properties of tin oxide nanobelts as such a platform, supporting phonon polaritons in the far-IR
Externí odkaz:
https://doaj.org/article/07d988a5ff6945478f36ebe8a56aa414
Autor:
Flávio H. Feres, Ingrid D. Barcelos, Alisson R. Cadore, Lukas Wehmeier, Tobias Nörenberg, Rafael A. Mayer, Raul O. Freitas, Lukas M. Eng, Susanne C. Kehr, Francisco C. B. Maia
Publikováno v:
Nano Letters. 23:3913-3920
Publikováno v:
APL Photonics, Vol 6, Iss 3, Pp 036102-036102-8 (2021)
Nanotechnology and modern materials science demand reliable local probing techniques on the nanoscopic length scale. Most commonly, scanning probe microscopy methods are applied in numerous variants and shades, for probing the different sample proper
Externí odkaz:
https://doaj.org/article/f8afb7eeb826475aa4274e45149a7b0c
Autor:
Martin Lewin, Thomas Taubner, Susanne C. Kehr, J. Michael Klopf, Matthias Wuttig, Julian Barnett, Andreas Heßler, Lukas Wehmeier, Lukas M. Eng, Julian Pries
Publikováno v:
Nano Letters. 21:9012-9020
Chalcogenide phase change materials reversibly switch between non-volatile states with vastly different optical properties, enabling novel active nanophotonic devices. However, a fundamental understanding of their laser-switching behavior is lacking
Autor:
Tobias Nörenberg, Gonzalo Álvarez-Pérez, Maximilian Obst, Lukas Wehmeier, Franz Hempel, J. Michael Klopf, Alexey Y. Nikitin, Susanne C. Kehr, Lukas M. Eng, Pablo Alonso-González, Thales V. A. G. de Oliveira
Publikováno v:
ACS Nano 16(2022)12, 20174-20185
Terahertz (THz) electromagnetic radiation is key to access collective excitations such as magnons (spins), plasmons (electrons), or phonons (atomic vibrations), thus bridging topics between optics and solid-state physics. Confinement of THz light to
Autor:
Julian Barnett, Lukas Wehmeier, Andreas Heßler, Martin Lewin, Julian Pries, Matthias Wuttig, J. M. Klopf, Susanne C. Kehr, Lukas M. Eng, Thomas Taubner
Publikováno v:
Terahertz Photonics II.
Autor:
Lukas M. Eng, Frederik Kuschewski, Jonathan Döring, Lukas Wehmeier, Tobias Nörenberg, Thales de Oliveira, Hans-Georg von Ribbeck, Denny Lang, Bert Green, Sergey Kovalev, Nilesh Awari, Stephan Winnerl, Manfred Helm, Michael Gensch, Susanne C. Kehr
Publikováno v:
Proceedings, Vol 26, Iss 1, p 1 (2019)
This talk advertises scattering-type scanning near-field. [...]
Externí odkaz:
https://doaj.org/article/a0dbb036bc4843c68c273954b74853be