Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Fritz, Keilmann"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract Infrared fingerprint spectra can reveal the chemical nature of materials down to 20-nm detail, far below the diffraction limit, when probed by scattering-type scanning near-field optical microscopy (s-SNOM). But this was impossible with livi
Externí odkaz:
https://doaj.org/article/b8303eac027c4aaba15f72b7d6e69052
Autor:
Andres de los Santos Pereira, Radoslava Sivkova, Adrian Cernescu, Jan Svoboda, Fritz Keilmann, Ognen Pop-Georgievski, Bogdana Bashta, Iryna Romanenko
Publikováno v:
Analytical Chemistry. 92:4716-4720
Polymer brush coatings are effective in preventing blood coagulation or bacterial attachment, but their chain conformation, while vital for this effect, was never characterized in high spatial resolution. Here, we report mid-infrared spectroscopic na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71c94cd5692b3fa3c01b0057b815671e
https://doi.org/10.1021/acs.analchem.9b05661
https://doi.org/10.1021/acs.analchem.9b05661
Autor:
Sergiu Amarie, Paul Zaslansky, Yusuke Kajihara, Erika Griesshaber, Wolfgang W. Schmahl, Fritz Keilmann
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 3, Iss 1, Pp 312-323 (2012)
Methods for imaging of nanocomposites based on X-ray, electron, tunneling or force microscopy provide information about the shapes of nanoparticles; however, all of these methods fail on chemical recognition. Neither do they allow local identificatio
Externí odkaz:
https://doaj.org/article/30263c283f8d4090b1c591f5d4bc5203
Publikováno v:
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
We report a breakthrough in observing living cells with infrared s-SNOM (scattering near-field microscope).(1, 2) To keep cells "happy" it is mandatory to avoid evaporation, oxygen attack, and mechanical distortion. We reported at IRMMW-THz 2019 that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70834085b328fe700a0b899b2b4374bd
https://doi.org/10.1109/irmmw-thz50926.2021.9567012
https://doi.org/10.1109/irmmw-thz50926.2021.9567012
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Infrared fingerprint spectra can reveal the chemical nature of materials down to 20-nm detail, far below the diffraction limit, when probed by scattering-type scanning near-field optical microscopy (s-SNOM). But this was impossible with living cells
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0501ce47a6ed0642283b1c7dc7362bed
https://pubmed.ncbi.nlm.nih.gov/34750511
https://pubmed.ncbi.nlm.nih.gov/34750511
Publikováno v:
Physical Review Research. 2
This work presents a numerical method of analyzing near-field infrared nanospectroscopy experimental data and considers the probe geometry in sufficient detail. Previous methods of analysis in the literature rely on simplifying the probe geometry whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f23063ee6caa8e3e69977bcd9c7a0330
https://doi.org/10.1103/physrevresearch.2.023272
https://doi.org/10.1103/physrevresearch.2.023272
Autor:
Sabri Beldi, Mark D. Thomson, Fritz Keilmann, Nicolas Mecklenbeck, Matthias M. Wiecha, Frederik Walla, Hartmut G. Roskos
Publikováno v:
Nanophotonics, Vol 7, Iss 1, Pp 269-276 (2018)
We investigated the excitation of surface plasmon polaritons on gold films with the metallized probe tip of a scattering-type scanning near-field optical microscope (s-SNOM). The emission of the polaritons from the tip, illuminated by near-infrared l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31b0743b20a608f11e138181b12b0c32
https://doi.org/10.1515/nanoph-2017-0042
https://doi.org/10.1515/nanoph-2017-0042
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
We report progress towards sealing alive cells in their native, wet environment by single-layer graphene, where graphene stabilizes the cell by tightly conforming with its surface and thus enables topographic AFM maps of the cell’s surface. Further
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fea1ae4593dc98754b2457033d9630c3
https://doi.org/10.1109/irmmw-thz.2019.8873819
https://doi.org/10.1109/irmmw-thz.2019.8873819
Autor:
Andrés Ayuela, Daniela Priesack, Tobias Gokus, Stefan Wakolbinger, Yasin C. Durmaz, Fabian R. Geisenhof, Takashi Taniguchi, Kenji Watanabe, Marta Pelc, Felix Winterer, R. Thomas Weitz, Jakob Lenz, Raúl Guerrero-Avilés, Fritz Keilmann
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
The crystal structure of solid-state matter greatly affects its electronic properties. For example, in multilayer graphene, precise knowledge of the lateral layer arrangement is crucial, since the most stable configurations, Bernal and rhombohedral s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d3a357f92c8e2822644644e6d2ff832
http://hdl.handle.net/10261/203065
http://hdl.handle.net/10261/203065
Autor:
Fritz Keilmann, James Hone, Lei Wang, Martin Wagner, Michael Goldflam, Guangxin Ni, Michael M. Fogler, Barbaros Özyilmaz, Alexander McLeod, Zhe Fei, A. H. Castro Neto, Dimitri Basov, Mengkun Liu
Publikováno v:
Nature Photonics. 10:244-247
Non-equilibrium photoinduced plasmons in a high-mobility graphene monolayer are investigated at infrared wavelengths. The success of metal-based plasmonics for manipulating light at the nanoscale has been empowered by imaginative designs and advanced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b32dcef318c73d44b83b2921581d304
https://doi.org/10.1038/nphoton.2016.45
https://doi.org/10.1038/nphoton.2016.45