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Akademický článek

Transverse spin forces and non-equilibrium particle dynamics in a circularly polarized vacuum optical trap

Autor: V. Svak, O. Brzobohatý, M. Šiler, P. Jákl, J. Kaňka, P. Zemánek, S. H. Simpson

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)

Here, the authors provide a vivid demonstration of the dynamic effect of transverse spin momentum in an optical beam in free space revealed by placing a dielectric bead in a counter-propagating optical beam trap in vacuum.

Externí odkaz: https://doaj.org/article/8f72a00f6d9a4046ae68a0df8a4357a8

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Optically bound matter levitated in vacuum

Autor: Alexander Jonáš, Pavel Zemánek, V. Svak, Lukáš Chvátal, Jan Ježek, Oto Brzobohatý, Martin Šiler, Stephen H. Simpson, Jana Flajšmanová

Publikováno v: Optical Trapping and Optical Micromanipulation XVIII.

Optical control of mechanical motion of solid-state objects weakly interacting with the environment, referred to as optomechanics, continues to enable new, ground-breaking methods and applications in the area of ultra- weak force sensing and quantum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::310453e37839dfd4e667d3ac72782a3e
https://doi.org/10.1117/12.2596308

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Transverse spin forces and non-equilibrium particle dynamics in a circularly polarized vacuum optical trap

Autor: Oto Brzobohatý, Jan Kaňka, V. Svak, Pavel Zemánek, Petr Jákl, Stephen H. Simpson, Martin Šiler

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Nature Communications

We provide a vivid demonstration of the mechanical effect of transverse spin momentum in an optical beam in free space. This component of the Poynting momentum was previously thought to be virtual, and unmeasurable. Here, its effect is revealed in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3398a28ff7fe8bb9e2fc91c2e80e7e92
https://doaj.org/article/8f72a00f6d9a4046ae68a0df8a4357a8

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T-matrix calculations of spin-dependent optical forces in optically trapped nanowires

Autor: Oto Brzobohatý, Rosalba Saija, Stephen H. Simpson, V. Svak, Pavel Zemánek, P. Polimeno, Maria Antonia Iatì, Onofrio M. Maragò, C. Degli Esposti Boschi

Publikováno v: The European physical journal plus 136 (2021): 86-1–86-15. doi:10.1140/epjp/s13360-020-01057-5
info:cnr-pdr/source/autori:P. Polimeno, M. A. Iatì, C. Degli Esposti Boschi, S. H. Simpson, V. Svak, O. Brzobohatý, P. Zemánek, O. M. Maragò and R. Saija/titolo:T-matrix calculations of spin-dependent optical forces in optically trapped nanowires/doi:10.1140%2Fepjp%2Fs13360-020-01057-5/rivista:The European physical journal plus/anno:2021/pagina_da:86-1/pagina_a:86-15/intervallo_pagine:86-1–86-15/volume:136

We present computational results associated with the onset of a spin-dependent optical force component occurring on zinc oxide nanowires trapped in optical tweezers with circularly polarized light. This type of non-conservative force appears directed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11e0e131203b6f205a53ea27ff1a78de
https://publications.cnr.it/doc/442872

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Non-conservative instabilities in optical vacuum traps

Autor: Martin Šiler, Pavel Zemánek, Jan Kanka, Stephen H. Simpson, Oto Brzobohatý, Yoshihiko Arita, V. Svak, Petr Jákl, Kishan Dholakia

Particles held in optical tweezers are commonly thought to be at thermodynamic equilibrium with their environment. Under this assumption the elastic energy of the trap is equal to the thermal energy. As a result the variance of the particle position

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::557df15b981e47ef5509e6ec613693a5
https://hdl.handle.net/10023/20745

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Optical Trapping, Optical Binding, and Rotational Dynamics of Silicon Nanowires in Counter-Propagating Beams

Autor: Maria Josè Lo Faro, V. Svak, Stephen H. Simpson, Maria Grazia Donato, Oto Brzobohatý, Onofrio M. Maragò, Antonio Alessio Leonardi, Pavel Zemánek, Alessia Irrera

Publikováno v: Nano letters
19 (2019): 342–352. doi:10.1021/acs.nanolett.8b03978
info:cnr-pdr/source/autori:Donato M.G.; Brzobohaty O.; Simpson S.H.; Irrera A.; Leonardi A.A.; Lo Faro M.J.; Svak V.; Marago O.M.; Zemanek P./titolo:Optical Trapping, Optical Binding, and Rotational Dynamics of Silicon Nanowires in Counter-Propagating Beams/doi:10.1021%2Facs.nanolett.8b03978/rivista:Nano letters (Print)/anno:2019/pagina_da:342/pagina_a:352/intervallo_pagine:342–352/volume:19

Silicon nanowires are held and manipulated in controlled optical traps based on counter-propagating beams focused by low numerical aperture lenses. The double-beam configuration compensates light scattering forces enabling an in-depth investigation o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9df6d0093b285d798aa87d919b0033b0
https://publications.cnr.it/doc/398710

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Stochastic dynamics of optically bound matter levitated in vacuum

Autor: Jan Ježek, Pavel Zemánek, Martin Šiler, V. Svak, Oto Brzobohatý, Jana Flajšmanová, Alexandr Jonáš, Lukáš Chvátal, Stephen H. Simpson

Publikováno v: Optica. 8:220

Optically levitated nanoparticles in a vacuum offer a light–matter interface with broad and easy tunability of all key system parameters. However, the majority of previously reported experimental achievements in this area have only dealt with a sin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f6f7609cf48a5749a4b99dcac4ff7934
https://doi.org/10.1364/optica.404851

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