Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Kjeld S. E. Eikema"'
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Pauli exclusion principle has fundamental and practical consequences to the structure of matter and particle interaction. Here the authors demonstrate Pauli blocking in a coherently driven system using trapped 3He degenerate Fermi gases.
Externí odkaz:
https://doaj.org/article/67adae6f6e3443899e32f8983b89992d
Autor:
Xiaomeng Liu, Antonios Pelekanidis, Mengqi Du, Fengling Zhang, Kjeld S. E. Eikema, Stefan Witte
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043100 (2023)
High-harmonic generation sources can produce coherent, broadband radiation at extreme-ultraviolet and soft-x-ray wavelengths. The wavefronts of the generated high-order harmonics are influenced by the incident laser field, the generation conditions,
Externí odkaz:
https://doaj.org/article/ad407a03d9f44fd7b19dae753f551c8e
Autor:
Mengqi Du, Xiaomeng Liu, Antonios Pelekanidis, Fengling Zhang, Lars Loetgering, Patrick Konold, Christina L. Porter, Peter Smorenburg, Kjeld S. E. Eikema, Stefan Witte
Publikováno v:
Optica 10(2), 255 (2023). doi:10.1364/OPTICA.478346
Optica, 10(2), 255-263. OSA Publishing
Du, M, Liu, X, Pelekanidis, A, Zhang, F, Loetgering, L, Konold, P, Porter, C L, Smorenburg, P, Eikema, K S E & Witte, S 2023, ' High-resolution wavefront sensing and aberration analysis of multi-spectral extreme ultraviolet beams ', Optica, vol. 10, no. 2, pp. 255-263 . https://doi.org/10.1364/OPTICA.478346
Optica, 10(2), 255-263. OSA Publishing
Du, M, Liu, X, Pelekanidis, A, Zhang, F, Loetgering, L, Konold, P, Porter, C L, Smorenburg, P, Eikema, K S E & Witte, S 2023, ' High-resolution wavefront sensing and aberration analysis of multi-spectral extreme ultraviolet beams ', Optica, vol. 10, no. 2, pp. 255-263 . https://doi.org/10.1364/OPTICA.478346
Coherent multi-spectral extreme ultraviolet beams have great potential for providing high spatial and temporal resolution for microscopy and spectroscopy applications. But due to the limitations of short-wavelength optics and the broad bandwidth, it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::481c71412b20a135e07e7d8c438a7ddd
https://doi.org/10.1364/OPTICA.478346
https://doi.org/10.1364/OPTICA.478346
Publikováno v:
Mathijssen, J, Mazzotta, Z, Heinzerling, A M, Eikema, K S E & Witte, S 2023, ' Material-specific high-order harmonic generation in laser-produced plasmas for varying plasma dynamics ', Applied Physics B: Lasers and Optics, vol. 129, no. 6, 91, pp. 1-11 . https://doi.org/10.1007/s00340-023-08034-7
Applied Physics B: Lasers and Optics, 129(6):91, 1-11. Springer Verlag
Applied Physics B: Lasers and Optics, 129(6):91, 1-11. Springer Verlag
We present a new experimental setup for high-order harmonic generation in laser-produced plasmas, allowing the generation of coherent VUV and EUV light, as well as characterisation of the laser-produced plasmas by studying the emitted harmonics. We h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4f3c826d68b7c0fa84f18e664b07fc3
https://research.vu.nl/en/publications/df34c477-174e-4e7f-a209-7da8859758e7
https://research.vu.nl/en/publications/df34c477-174e-4e7f-a209-7da8859758e7
High-precision Ramsey-comb spectroscopy on molecular deuterium for tests of molecular quantum theory
Autor:
Charlaine Roth, Andrés Martínez de Velasco, Elmer L. Gründeman, Mathieu Collombon, Maximilian Beyer, Vincent Barbé, Kjeld S. E. Eikema
Publikováno v:
Molecular Physics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e31c4eab2effc6439a940670d9187120
https://doi.org/10.1080/00268976.2023.2211405
https://doi.org/10.1080/00268976.2023.2211405
Autor:
R. F. H. J. van der Beek, Kjeld S. E. Eikema, Wim Vassen, Hendrick L. Bethlem, O. Onishchenko
Publikováno v:
Physical Review A, 102(6):061302, 1-6. American Physical Society
Physical Review A, 102(6):061302. AMER PHYSICAL SOC
Van Der Beek, R F H J, Onishchenko, O, Vassen, W, Eikema, K S E & Bethlem, H L 2020, ' Bloch oscillations with a metastable helium Bose-Einstein condensate ', Physical Review A, vol. 102, no. 6, 061302, pp. 1-6 . https://doi.org/10.1103/PhysRevA.102.061302
Physical Review A, 102(6):061302. AMER PHYSICAL SOC
Van Der Beek, R F H J, Onishchenko, O, Vassen, W, Eikema, K S E & Bethlem, H L 2020, ' Bloch oscillations with a metastable helium Bose-Einstein condensate ', Physical Review A, vol. 102, no. 6, 061302, pp. 1-6 . https://doi.org/10.1103/PhysRevA.102.061302
We have observed Bloch oscillations of a ${}^{4}{\text{He}}^{*}$ Bose-Einstein condensate in an optical lattice at 1557.3 nm. Due to its low mass, metastable helium was efficiently accelerated orders of magnitude faster than demonstrated with other a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fce0721f2b226ed2eca166b0ab58bd8c
http://www.scopus.com/inward/record.url?scp=85098562360&partnerID=8YFLogxK
http://www.scopus.com/inward/record.url?scp=85098562360&partnerID=8YFLogxK
Publikováno v:
Journal of Applied Physics, 131(10):105905, 1-10. American Institute of Physics Publising LLC
Meijer, R A, Kurilovich, D, Eikema, K S E, Versolato, O O & Witte, S 2022, ' The transition from short-to long-timescale pre-pulses: Laser-pulse impact on tin microdroplets ', Journal of Applied Physics, vol. 131, no. 10, 105905, pp. 1-10 . https://doi.org/10.1063/5.0082352
Meijer, R A, Kurilovich, D, Eikema, K S E, Versolato, O O & Witte, S 2022, ' The transition from short-to long-timescale pre-pulses: Laser-pulse impact on tin microdroplets ', Journal of Applied Physics, vol. 131, no. 10, 105905, pp. 1-10 . https://doi.org/10.1063/5.0082352
We experimentally study the interaction of intense laser pulses with metallic microdroplets and the resulting deformation. Two main droplet deformation regimes have previously been established: that of sheet-type expansion after impact of “long”
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::152d8903c9f8b5ef631adc650fb53f71
https://research.vu.nl/en/publications/12b5b1cb-ec1f-4290-8a5b-0dca9dc68e9b
https://research.vu.nl/en/publications/12b5b1cb-ec1f-4290-8a5b-0dca9dc68e9b
Autor:
M. Haidar, M. Germann, Wim Ubachs, Kjeld S. E. Eikema, Vladimir I. Korobov, Sayan Patra, F. M. J. Cozijn, Laurent Hilico, Jeroen C. J. Koelemeij, J.-Ph. Karr
Publikováno v:
Science
Patra, S, Germann, M, Karr, J P, Haidar, M, Hilico, L, Korobov, V I, Cozijn, F M J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2020, ' Proton-electron mass ratio from laser spectroscopy of HD + at the part-per-trillion level ', Science (New York, N.Y.), vol. 369, no. 6508, pp. 1238-1241 . https://doi.org/10.1126/science.aba0453
Science (New York, N.Y.), 369(6508), 1238-1241. American Association for the Advancement of Science
Science, 2020, 369 (6508), pp.1238-1241. ⟨10.1126/science.aba0453⟩
Patra, S, Germann, M, Karr, J P, Haidar, M, Hilico, L, Korobov, V I, Cozijn, F M J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2020, ' Proton-electron mass ratio from laser spectroscopy of HD + at the part-per-trillion level ', Science (New York, N.Y.), vol. 369, no. 6508, pp. 1238-1241 . https://doi.org/10.1126/science.aba0453
Science (New York, N.Y.), 369(6508), 1238-1241. American Association for the Advancement of Science
Science, 2020, 369 (6508), pp.1238-1241. ⟨10.1126/science.aba0453⟩
A very precise ratio The value of the ratio of the masses of the proton and the electron has a bearing on the values of other physical constants. This ratio is known to a very high precision. Patra et al. improved this precision even further by measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e7d3e0577870276d50f4193b8ab03e2
https://research.vu.nl/en/publications/845375fd-559f-44d0-9760-010845a5d068
https://research.vu.nl/en/publications/845375fd-559f-44d0-9760-010845a5d068
Autor:
Kahraman Keskinbora, Kjeld S. E. Eikema, Stefan Witte, Thomas Wilhein, Gisela Schütz, Margarita Baluktsian, Lars Loetgering, Roarke Horstmeyer
Publikováno v:
Loetgering, L, Baluktsian, M, Keskinbora, K, Horstmeyer, R, Wilhein, T, Schütz, G, Eikema, K S E & Witte, S 2020, ' Generation and characterization of focused helical x-ray beams ', Science advances, vol. 6, no. 7, eaax8836, pp. 1-6 . https://doi.org/10.1126/sciadv.aax8836
Science advances, 6(7):eaax8836, 1-6. American Association for the Advancement of Science
Science Advances
Science advances, 6(7):eaax8836, 1-6. American Association for the Advancement of Science
Science Advances
Binary zone plates can be engineered to generate helical x-ray beams with large orbital angular momentum.
The phenomenon of orbital angular momentum (OAM) affects a variety of important applications in visible optics, including optical tweezers,
The phenomenon of orbital angular momentum (OAM) affects a variety of important applications in visible optics, including optical tweezers,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0a208380cdc0c7dc53b452e5ee40823
https://doi.org/10.1126/sciadv.aax8836
https://doi.org/10.1126/sciadv.aax8836
Publikováno v:
Optics letters 47(8), 1949 (2022). doi:10.1364/OL.453655
Optics Letters
Optics Letters, 47(8), 1949-1952. The Optical Society
de Beurs, A, Loetgering, L, Herczog, M, Du, M, Eikema, K S E & Witte, S 2022, ' aPIE: an angle calibration algorithm for reflection ptychography ', Optics Letters, vol. 47, no. 8, pp. 1949-1952 . https://doi.org/10.1364/OL.453655
Optics Letters
Optics Letters, 47(8), 1949-1952. The Optical Society
de Beurs, A, Loetgering, L, Herczog, M, Du, M, Eikema, K S E & Witte, S 2022, ' aPIE: an angle calibration algorithm for reflection ptychography ', Optics Letters, vol. 47, no. 8, pp. 1949-1952 . https://doi.org/10.1364/OL.453655
Reflection ptychography is a lensfree microscopy technique particularly promising in regions of the electromagnetic spectrum where imaging optics are inefficient or not available. This is the case in tabletop extreme ultraviolet microscopy and grazin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc166fd04dedc0ba6fe20f6346635c0c
https://repository.gsi.de/record/246424
https://repository.gsi.de/record/246424