Search Results - "Fognini, A."

Overcoming power broadening of the quantum dot emission in a pure wurtzite nanowire by Reimer, D W, Bulgarini, V, Fognini, D, Heeres, Reinier W., Witek, J J, Versteegh, V a M, Rubino, D, Braun, P W, Kamp, P W, Höfling, P W, Dalacu, D, Lapointe, J J, Poole, P J, Zwiller, V

“…One of the key challenges in developing quantum networks is to generate single photons with high brightness, purity, and long temporal coherence. Semiconductor…”
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Early Stages of Ultrafast Spin Dynamics in a 3d Ferromagnet by Gort, R, Bühlmann, K, Däster, S, Salvatella, G, Hartmann, N, Zemp, Y, Holenstein, S, Stieger, C, Fognini, A, Michlmayr, T U, Bähler, T, Vaterlaus, A, Acremann, Y

“…Prior to the development of pulsed lasers, one assigned a single local temperature to the lattice, the electron gas, and the spins. With the availability of…”
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Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo by Graves, C. E., Reid, A. H., Wang, T., Wu, B., de Jong, S., Vahaplar, K., Radu, I., Bernstein, D. P., Messerschmidt, M., Müller, L., Coffee, R., Bionta, M., Epp, S. W., Hartmann, R., Kimmel, N., Hauser, G., Hartmann, A., Holl, P., Gorke, H., Mentink, J. H., Tsukamoto, A., Fognini, A., Turner, J. J., Schlotter, W. F., Rolles, D., Soltau, H., Strüder, L., Acremann, Y., Kimel, A. V., Kirilyuk, A., Rasing, Th, Stöhr, J., Scherz, A. O., Dürr, H. A.

“…The dynamics of thin magnetic films revealed by ultrafast laser techniques cannot be explained by standard equilibrium descriptions. Diffraction experiments…”
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Universal fine-structure eraser for quantum dots by Fognini, A, Ahmadi, A, Daley, S J, Reimer, M E, Zwiller, V

“…We analyze the degree of entanglement measurable from a quantum dot via the biexciton-exciton cascade as a function of the exciton fine-structure splitting and…”
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Dephasing Free Photon Entanglement with a Quantum Dot by Fognini, A, Ahmadi, A, Zeeshan, M, Fokkens, J. T, Gibson, S. J, Sherlekar, N, Daley, S. J, Dalacu, D, Poole, P. J, Jöns, K. D, Zwiller, V, Reimer, M. E

“…Generation of photon pairs from quantum dots with near-unity entanglement fidelity has been a long-standing scientific challenge. It is generally thought that…”
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Ultrafast reduction of the total magnetization in iron by Fognini, A., Michlmayr, T. U., Salvatella, G., Wetli, C., Ramsperger, U., Bähler, T., Sorgenfrei, F., Beye, M., Eschenlohr, A., Pontius, N., Stamm, C., Hieke, F., Dell'Angela, M., Jong, S. de, Kukreja, R., Gerasimova, N., Rybnikov, V., Al-Shemmary, A., Redlin, H., Raabe, J., Föhlisch, A., Dürr, H. A., Wurth, W., Pescia, D., Vaterlaus, A., Acremann, Y.

“…Surprisingly, if a ferromagnet is exposed to an ultrafast laser pulse, its apparent magnetization is reduced within less than a picosecond. Up to now, the…”
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Imaging spin filter for electrons based on specular reflection from iridium (001) by Kutnyakhov, D., Lushchyk, P., Fognini, A., Perriard, D., Kolbe, M., Medjanik, K., Fedchenko, E., Nepijko, S.A., Elmers, H.J., Salvatella, G., Stieger, C., Gort, R., Bähler, T., Michlmayer, T., Acremann, Y., Vaterlaus, A., Giebels, F., Gollisch, H., Feder, R., Tusche, C., Krasyuk, A., Kirschner, J., Schönhense, G.

“…As Stern–Gerlach type spin filters do not work with electrons, spin analysis of electron beams is accomplished by spin-dependent scattering processes based on…”
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The role of space charge in spin-resolved photoemission experiments by Fognini, A, Salvatella, G, Michlmayr, T U, Wetli, C, Ramsperger, U, Bähler, T, Sorgenfrei, F, Beye, M, Eschenlohr, A, Pontius, N, Stamm, C, Hieke, F, Dell'Angela, M, de Jong, S, Kukreja, R, Gerasimova, N, Rybnikov, V, Redlin, H, Raabe, J, Föhlisch, A, Dürr, H A, Wurth, W, Pescia, D, Vaterlaus, A, Acremann, Y

“…Spin-resolved photoemission is one of the most direct ways of measuring the magnetization of a ferromagnet. If all valence band electrons contribute, the…”
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The influence of the excitation pulse length on ultrafast magnetization dynamics in nickel by Fognini, A, Salvatella, G, Gort, R, Michlmayr, T, Vaterlaus, A, Acremann, Y

“…The laser-induced demagnetization of a ferromagnet is caused by the temperature of the electron gas as well as the lattice temperature. For long excitation…”
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Femtosecond single-shot imaging of nanoscale ferromagnetic order in Co/Pd multilayers using resonant x-ray holography by Wang, Tianhan, Zhu, Diling, Wu, Benny, Graves, Catherine, Schaffert, Stefan, Rander, Torbjörn, Müller, Leonard, Vodungbo, Boris, Baumier, Cédric, Bernstein, David P, Bräuer, Björn, Cros, Vincent, de Jong, Sanne, Delaunay, Renaud, Fognini, Andreas, Kukreja, Roopali, Lee, Sooheyong, López-Flores, Víctor, Mohanty, Jyoti, Pfau, Bastian, Popescu, Horia, Sacchi, Maurizio, Sardinha, Anna B, Sirotti, Fausto, Zeitoun, Philippe, Messerschmidt, Marc, Turner, Joshua J, Schlotter, William F, Hellwig, Olav, Mattana, Richard, Jaouen, Nicolas, Fortuna, Franck, Acremann, Yves, Gutt, Christian, Dürr, Hermann A, Beaurepaire, Eric, Boeglin, Christine, Eisebitt, Stefan, Grübel, Gerhard, Lüning, Jan, Stöhr, Joachim, Scherz, Andreas O

“…We present the first single-shot images of ferromagnetic, nanoscale spin order taken with femtosecond x-ray pulses. X-ray-induced electron and spin dynamics…”
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Early Stages of Ultrafast Spin Dynamics in a 3 d Ferromagnet by Gort, R., Bühlmann, K., Däster, S., Salvatella, G., Hartmann, N., Zemp, Y., Holenstein, S., Stieger, C., Fognini, A., Michlmayr, T. U., Bähler, T., Vaterlaus, A., Acremann, Y.

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Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo by Graves, C. E., Reid, A. H., Wang, T., Wu, B., de Jong, S., Vahaplar, K., Radu, I., Bernstein, D. P., Messerschmidt, M., Müller, L., Coffee, R., Bionta, M., Epp, S. W., Hartmann, R., Kimmel, N., Hauser, G., Hartmann, A., Holl, P., Gorke, H., Mentink, J. H., Tsukamoto, A., Fognini, A., Turner, J. J., Schlotter, W. F., Rolles, D., Soltau, H., Strüder, L., Acremann, Y., Kimel, A. V., Kirilyuk, A., Rasing, Th, Stöhr, J., Scherz, A. O., Dürr, H. A.

“…Ultrafast laser techniques have revealed extraordinary spin dynamics in magnetic materials that equilibrium descriptions of magnetism cannot explain…”
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Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo by Graves, C. E., Reid, A. H., Wang, T., Wu, B., de Jong, S., Vahaplar, K., Radu, I., Bernstein, D. P., Messerschmidt, M., Müller, L., Coffee, R., Bionta, M., Epp, S. W., Hartmann, R., Kimmel, N., Hauser, G., Hartmann, A., Holl, P., Gorke, H., Mentink, J. H., Tsukamoto, A., Fognini, A., Turner, J. J., Schlotter, W. F., Rolles, D., Soltau, H., Strüder, L., Acremann, Y., Kimel, A. V., Kirilyuk, A., Rasing, Th, Stöhr, J., Scherz, A. O., Dürr, H. A.

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Highly sensitive single-molecule detection in slow protein ion beams by Strauß, M, Shayeghi, A, Mauser, M. F. X, Geyer, P, Kostersitz, T, Salapa, J, Dobrovolskiy, O, Daly, S, Commandeur, J, Hua, Y, Köhler, V, Mayor, M, Benserhir, J, Bruschini, C, Charbon, E, Castaneda, M, Gevers, M, Gourgues, R, Kalhor, N, Fognini, A, Arndt, M

“…Sci. Adv. 9, eadj2801 (2023) The analysis of proteins in the gas phase benefits from detectors that exhibit high efficiency and precise spatial resolution…”
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Universal finestructure eraser for quantum dots by Fognini, A, Ahmadi, A, Daley, S. J, Reimer, M. E, Zwiller, V

“…Opt. Express 26, 24487-24496 (2018) The measurable degree of entanglement from a quantum dot via the biexciton-exciton cascade depends crucially on the bright…”
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Hybrid quantum photonic integrated circuits by Elshaari, A. W., Zadeh, I. Esmaeil, Fognini, A., Dalacu, D., Poole, P. J., Reimer, M. E., Zwiller, V., Jons, K. D.

“…Quantum photonic integrated circuits require a scalable approach to integrate bright on-demand sources of entangled photon-pairs in complex on-chip quantum…”
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Path to perfect photon entanglement with a quantum dot by Fognini, A, Ahmadi, A, Zeeshan, M, Fokkens, J. T, Gibson, S. J, Sherlekar, N, Daley, S. J, Dalacu, D, Poole, P. J, Jöns, K. D, Zwiller, V, Reimer, M. E

“…Realizing perfect two-photon entanglement from quantum dots has been a long-standing scientific challenge. It is generally thought that the nuclear spins limit…”
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Hybrid quantum photonics by Elshaari, Ali W., Zadeh, Iman Esmaeil, Fognini, Andreas, Reimer, Michael E., Dalacu, Dan, Poole, Philip J., Zwiller, Val, Jons, Klaus D.

“…We deterministically integrate nanowire quantum-emitters in SiN photonic circuits. We generate single-photons, suppress excitation-laser, and isolate specific…”
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The topografiner with energy analysis by Zanin, D. A., Erbudak, M., De Pietro, L. G., Cabrera, H., Redmann, A., Fognini, A., Michlmayr, T., Acremann, Y. M., Pescia, D., Ramsperger, U.

“…The topografiner technology, developed originally at the National Bureau of Standards (now National Institute of Standards and Technology) with the aim of…”
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