Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Neuman, Tomáš"'
Autor:
Kaiser, Katharina, Rosławska, Anna, Romeo, Michelangelo, Scheurer, Fabrice, Neuman, Tomáš, Schull, Guillaume
Controlling electrically-stimulated quantum light sources (QLS) is key for developing integrated and low-scale quantum devices. The mechanisms leading to quantum emission are complex, as a large number of electronic states of the system impacts the e
Externí odkaz:
http://arxiv.org/abs/2402.17536
Autor:
Ferreira, Rodrigo Cezar de Campos, Sagwal, Amandeep, Doležal, Jiří, Canola, Sofia, Merino, Pablo, Neuman, Tomáš, Švec, Martin
Single-molecule tip-enhanced Raman spectroscopy (TERS) under ultra-high vacuum (UHV) and cryogenic conditions enables exploration of the relations between the adsorption geometry, electronic state, and vibrational fingerprints of individual molecules
Externí odkaz:
http://arxiv.org/abs/2310.12546
Autor:
Rosławska, Anna, Kaiser, Katharina, Romeo, Michelangelo, Devaux, Eloïse, Scheurer, Fabrice, Berciaud, Stéphane, Neuman, Tomáš, Schull, Guillaume
Many natural and artificial reactions including photosynthesis or photopolymerization are initiated by stimulating organic molecules into an excited state, which enables new reaction paths. Controlling light-matter interaction can influence this key
Externí odkaz:
http://arxiv.org/abs/2305.13157
Autor:
Jiang, Song, Neuman, Tomas, Bretel, Remi, Boeglin, Alex, Scheurer, Fabrice, Moal, Eric Le, Schull, Guillaume
Publikováno v:
Phys. Rev. Lett. 130, 126202 (2023)
A scanning tunneling microscope is used to study the fluorescence of a model charged molecule (quinacridone) adsorbed on a sodium chloride (NaCl)-covered metallic sample. Fluorescence from the neutral and positively charged species is reported and im
Externí odkaz:
http://arxiv.org/abs/2210.00126
Publikováno v:
Science 379, 1049-1054 (2023)
Excitonic emission from atomically precise graphene nanoribbons (GNRs) synthesised on a metal surface is probed with atomic-scale spatial resolution using a scanning tunneling microscopy (STM) approach. A STM-based strategy to transfer the GNRs to a
Externí odkaz:
http://arxiv.org/abs/2209.01471
Autor:
Jakob, Lukas A., Deacon, William M., Zhang, Yuan, de Nijs, Bart, Pavlenko, Elena, Hu, Shu, Carnegie, Cloudy, Neuman, Tomas, Esteban, Ruben, Aizpurua, Javier, Baumberg, Jeremy J.
Publikováno v:
Nature Communications 14:3291 (2023)
Molecular vibrations couple to visible light only weakly, have small mutual interactions, and hence are often ignored for non-linear optics. Here we show the extreme confinement provided by plasmonic nano- and pico-cavities can sufficiently enhance o
Externí odkaz:
http://arxiv.org/abs/2204.09641
Autor:
Vasilev, Kirill, Doppagne, Benjamin, Neuman, Tomáš, Rosławska, Anna, Bulou, Hervé, Boeglin, Alex, Scheurer, Fabrice, Schull, Guillaume
The optical properties of chromophores can be efficiently tuned by electrostatic fields generated in their close environment, a phenomenon that plays a central role for the optimization of complex functions within living organisms where it is known a
Externí odkaz:
http://arxiv.org/abs/2110.15880
While the emerging field of vibrational polariton chemistry has the potential to overcome traditional limitations of synthetic chemistry, the underlying mechanism is not yet well understood. Here, we explore how the dynamics of unimolecular dissociat
Externí odkaz:
http://arxiv.org/abs/2109.06631
Autor:
Roslawska, Anna, Neuman, Tomáš, Doppagne, Benjamin, Borisov, Andrei G., Romeo, Michelangelo, Scheurer, Fabrice, Aizpurua, Javier, Schull, Guillaume
The interactions between the excited states of a single chromophore with static and dynamic electric fields confined to a plasmonic cavity of picometer dimensions are investigated in a joint experimental and theoretical effort. In this configuration,
Externí odkaz:
http://arxiv.org/abs/2107.01072
Control over transition rates between spin states of emitters is crucial in a wide variety of fields ranging from quantum information science to the nanochemistry of free radicals. We present an approach to drive a both electric and magnetic dipole-f
Externí odkaz:
http://arxiv.org/abs/2012.04662