Zobrazeno 1 - 10
of 339
pro vyhledávání: '"Setälä Tero"'
Autor:
Hanhisalo, Martti, Mirmoosa, Mohammad Sajjad, Setälä, Tero, Rudnicki, Łukasz, Norrman, Andreas
Light is known to exhibit quantum uncertainty in terms of its amplitude, phase, and polarization. However, quantum uncertainty related to coherence, which is also a fundamental physical property of light, has not been considered to date. Here, we for
Externí odkaz:
http://arxiv.org/abs/2411.13106
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 18, Iss 2, p 12 (2022)
The so-called coherence Poincaré sphere was recently introduced for geometrical visualization of the state of two-point spatial coherence of a random electromagnetic beam. The formalism and its interpretation strongly utilized a specific decompositi
Externí odkaz:
https://doaj.org/article/ceaf246fdd1b49fe989f28e85ab54c4f
Publikováno v:
EPJ Web of Conferences, Vol 266, p 13020 (2022)
We present optical systems, which transform isodiffracting nonstationary beams into fields obeying either cross-spectral purity or spectral invariance. The designs are hybrid refractive-diffractive imaging systems, which are able to perform the desir
Externí odkaz:
https://doaj.org/article/e2eef69d04254e99baa98dafcb4b1646
The concepts of geometric phase and wave-particle duality are interlinked to several fundamental phenomena in quantum physics, but their mutual relationship still forms an uncharted open problem. Here we address this question by studying the geometri
Externí odkaz:
http://arxiv.org/abs/2310.20273
We consider cross-spectral purity in random nonstationary electromagnetic beams in terms of the Stokes parameters representing the spectral density and the spectral polarization state. We show that a Stokes parameter being cross-spectrally pure is co
Externí odkaz:
http://arxiv.org/abs/2307.11103
Autor:
Asamoah, Benjamin O., Nečada, Marek, Liu, Wenzhe, Heikkinen, Janne, Mohamed, Sughra, Halder, Atri, Rekola, Heikki, Koivurova, Matias, Väkeväinen, Aaro I., Törmä, Päivi, Turunen, Jari, Setälä, Tero, Friberg, Ari T., Shi, Lei, Hakala, Tommi K.
Radiative properties of lasing plasmonic bound state in continuum are analyzed. The topological charge of the lasing signal is analyzed in the far field as well as in the source plane of the finite sized plasmonic lattice. The physical mechanism enab
Externí odkaz:
http://arxiv.org/abs/2206.05011
Publikováno v:
Phys. Rev. Applied 18 (2022), 044053
We propose a free-space, inverse design of nanostructure's effective mode-matching fields via a backward propagation of tightly focused vector beams to the pupil plane of an aplanatic system of high numerical aperture. First, we study the nanostructu
Externí odkaz:
http://arxiv.org/abs/2204.07379
Autor:
Zang, Xiaorun, Bautista, Godofredo, Turquet, Léo, Setälä, Tero, Kauranen, Martti, Turunen, Jari
Efficient optical excitation of hybridized plasmon modes in nanoantennas is vital to achieve many promising functionalities, but it can be challenging due to a field-profile mismatch between the incident light and the hybrid mode. We present a genera
Externí odkaz:
http://arxiv.org/abs/2010.00032
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