Results 21 to 30 of about 99,600 (241)

A mid-infrared lab-on-a-chip for dynamic reaction monitoring

Nature Communications, 2022
Rapid investigation of chemical reactions is a challenge in bio-medical analysis. Here, the authors demonstrate sensitive in-situ real-time reaction-monitoring of conformational changes in protein solution, based on a fingertip-sized mid-IR lab-on-a-chip.
Borislav Hinkov, Florian Pilat, Laurin Lux, Patricia L. Souza, Mauro David, Andreas Schwaighofer, Daniela Ristanić, Benedikt Schwarz, Hermann Detz, Aaron M. Andrews, Bernhard Lendl, Gottfried Strasser   +11 more
doaj   +1 more source

Coherent manipulation of a solid-state artificial atom with few photons

Nature Communications, 2016
Quantum information processing requires a system in which a single photon controls a single atom and vice versa. Here, the authors demonstrate such reciprocal operation and achieve coherent manipulation of a quantum dot by a few photons sent on an ...
V. Giesz, N. Somaschi, G. Hornecker, T. Grange, B. Reznychenko, L. De Santis, J. Demory, C. Gomez, I. Sagnes, A. Lemaître, O. Krebs, N. D. Lanzillotti-Kimura, L. Lanco, A. Auffeves, P. Senellart   +14 more
doaj   +1 more source

A Temperature-Controlled Patch Clamp Platform Demonstrated on Jurkat T Lymphocytes and Human Induced Pluripotent Stem Cell-Derived Neurons

Bioengineering, 2020
Though patch clamping at room temperature is a widely disseminated standard procedure in the electrophysiological community, it does not represent the biological system in mammals at around 37 °C.
Jann Harberts, Max Kusch, John O’Sullivan, Robert Zierold, Robert H. Blick   +4 more
doaj   +1 more source

Luminescence from Droplet-Etched GaAs Quantum Dots at and Close to Room Temperature

Nanomaterials, 2021
Epitaxially grown quantum dots (QDs) are established as quantum emitters for quantum information technology, but their operation under ambient conditions remains a challenge.
Leonardo Ranasinghe, Christian Heyn, Kristian Deneke, Michael Zocher, Roman Korneev, Wolfgang Hansen   +5 more
doaj   +1 more source

Coulomb interactions in high-coherence femtosecond electron pulses from tip emitters

Structural Dynamics, 2019
Tip-based photoemission electron sources offer unique properties for ultrafast imaging, diffraction, and spectroscopy experiments with highly coherent few-electron pulses.
Nora Bach, Till Domröse, Armin Feist, Thomas Rittmann, Stefanie Strauch, Claus Ropers, Sascha Schäfer   +6 more
doaj   +1 more source

Spectral and temporal characterization of the optical Kerr effect in Au/SiN multilayer hyperbolic metamaterials [PDF]

EPJ Web of Conferences
Metamaterials are artificially structured media offering multiple applications. Among them, epsilon-near-zero (ENZ) metamaterials are a platform for enhanced nonlinear optical phenomena.
Sindoni Alice, Dodici Francesca, Genchi Domenico, Cesca Tiziana, Mattei Giovanni   +4 more
doaj   +1 more source

Multimodal imaging of cubic Cu2O@Au nanocage formation via galvanic replacement using X-ray ptychography and nano diffraction

Scientific Reports, 2023
Being able to observe the formation of multi-material nanostructures in situ, simultaneously from a morphological and crystallographic perspective, is a challenging task.
Lukas Grote, Sarah-Alexandra Hussak, Leif Albers, Karolina Stachnik, Federica Mancini, Martin Seyrich, Olga Vasylieva, Dennis Brückner, Mikhail Lyubomirskiy, Christian G. Schroer, Dorota Koziej   +10 more
doaj   +1 more source

Interaction-induced hopping phase in driven-dissipative coupled photonic microcavities

Nature Communications, 2016
Coupled semiconductor microcavities constitute a model system where the hopping, interaction, and decay of exciton polaritons can be engineered. Here, Rodriguez et al.
S. R. K. Rodriguez, A. Amo, I. Sagnes, L. Le Gratiet, E. Galopin, A. Lemaître, J. Bloch   +6 more
doaj   +1 more source

Localization-limited exciton oscillator strength in colloidal CdSe nanoplatelets revealed by the optically induced stark effect

Light: Science & Applications, 2021
2D materials are considered for applications that require strong light-matter interaction because of the apparently giant oscillator strength of the exciton transitions in the absorbance spectrum. Nevertheless, the effective oscillator strengths of these
Pieter Geiregat, Carmelita Rodá, Ivo Tanghe, Shalini Singh, Alessio Di Giacomo, Delphine Lebrun, Gianluca Grimaldi, Jorick Maes, Dries Van Thourhout, Iwan Moreels, Arjan J. Houtepen, Zeger Hens   +11 more
doaj   +1 more source

Deterministic radiative coupling of two semiconductor quantum dots to the optical mode of a photonic crystal nanocavity

Scientific Reports, 2017
A system of two site-controlled semiconductor quantum dots (QDs) is deterministically integrated with a photonic crystal membrane nano-cavity. The two QDs are identified via their reproducible emission spectral features, and their coupling to the ...
M. Calic, C. Jarlov, P. Gallo, B. Dwir, A. Rudra, E. Kapon   +5 more
doaj   +1 more source