Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Amalya C. Johnson"'
Autor:
Niclas S. Mueller, Rakesh Arul, Gyeongwon Kang, Ashley P. Saunders, Amalya C. Johnson, Ana Sánchez-Iglesias, Shu Hu, Lukas A. Jakob, Jonathan Bar-David, Bart de Nijs, Luis M. Liz-Marzán, Fang Liu, Jeremy J. Baumberg
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Anti-Stokes photoluminescence (PL) is light emission at a higher photon energy than the excitation, with applications in optical cooling, bioimaging, lasing, and quantum optics. Here, we show how plasmonic nano-cavities activate anti-Stokes
Externí odkaz:
https://doaj.org/article/aab44d4f4e754135a8d6c78e17541f33
Autor:
Christian Heide, Yuki Kobayashi, Amalya C. Johnson, Tony F. Heinz, David A. Reis, Fang Liu, Shambhu Ghimire
We report a coherent layer-by-layer build-up of high-order harmonic generation (HHG) in artificially stacked transition metal dichalcogenides (TMDC) crystals in their various stacking configurations. In the experiments, millimeter-sized single crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af342632c04b853b85e0857d7ca53be6
http://arxiv.org/abs/2212.02354
http://arxiv.org/abs/2212.02354
Autor:
Yuki Kobayashi, Christian Heide, Amalya C. Johnson, Vishal Tiwari, Fang Liu, David A. Reis, Tony F. Heinz, Shambhu Ghimire
Interactions of quantum materials with strong-laser fields can induce exotic nonequilibrium electronic states. Monolayer transition-metal dichalcogenides, a new class of direct-gap semiconductors with prominent quantum confinement, offer exceptional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4473f6ac82915b0a47e4bc3426c2e695
http://arxiv.org/abs/2211.00139
http://arxiv.org/abs/2211.00139
Autor:
Amalya C. Johnson, Erik Tollerud, Mary E. Putman, Jana Grcevich, Joshua E. G. Peek, Yong Zheng, Adrian M. Price-Whelan
The gas content of the complete compilation of Local Group dwarf galaxies (119 within 2 Mpc) is presented using HI survey data. Within the virial radius of the Milky Way (224 kpc here), 53 of 55 dwarf galaxies are devoid of gas to limits of M$_{\rm H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1cc4d249fa5d8987bec1c78a947f0fc
http://arxiv.org/abs/2101.07809
http://arxiv.org/abs/2101.07809
Autor:
Christian Heide, Yuki Kobayashi, Amalya C. Johnson, Fang Liu, Tony F. Heinz, David A. Reis, Shambhu Ghimire
Publikováno v:
Optica. 9:512
Under strong electromagnetic excitation, electron–hole (e-h) pairs may be generated in solids, which are subsequently driven to high energy and high momentum, producing high harmonics (HH) of the driving field. The HH efficiency depends on the degr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a0b5f57b7458af31971b43ecef06f0b
https://doi.org/10.1364/optica.444105
https://doi.org/10.1364/optica.444105
Autor:
Amalya C. Johnson, Martijn de Vries, Lerato Sebokolodi, Bradford Snios, Paul Nulsen, Michael W. Wise, Ralph P. Kraft, Richard A. Perley
The powerful FR II radio galaxy Cygnus A exhibits primary and secondary hotspots in each lobe. A 2 Msec Chandra X-ray image of Cygnus A has revealed an approximately circular hole, with a radius of 3.9 kpc, centered on the primary hotspot in the east
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eee90b85905470eafa8e67a680d231a1
http://arxiv.org/abs/2002.02978
http://arxiv.org/abs/2002.02978
Autor:
Bradford Snios, Amalya C. Johnson, Paul E. J. Nulsen, Ralph P. Kraft, Martijn de Vries, Richard A. Perley, Lerato Sebokolodi, Michael W. Wise
Publikováno v:
Astrophysical Journal; 3/10/2020, Vol. 891 Issue 2, p1-1, 1p