Zobrazeno 1 - 10
of 2 376
pro vyhledávání: '"Fortuño, A."'
Autor:
Putley, Henry J., Davies, Bryn, Rodríguez-Fortuño, Francisco J., Bykov, Anton Yu., Zayats, Anatoly V.
Photonic skyrmion and meron lattices are structured light fields with topologically protected textures, analogous to magnetic skyrmions and merons. Here, we report the theoretical existence of mixed skyrmion and meron quasicrystals in an evanescent o
Externí odkaz:
http://arxiv.org/abs/2409.03932
Autor:
Carmo, Marciano Palma do, Mack, David, Roth, Diane J., Zhao, Miao, Devis, Ancin M., Rodríguez-Fortuño, Francisco J., Maier, Stefan A., Huidobro, Paloma A., Rakovich, Aliaksandra
Controlled long-range transport of micro- and nano-scale objects is a key requirement in lab-on-a-chip and microfluidic applications, enabling the efficient capture, concentration, manipulation, and detection of analytes. Traditional methods such as
Externí odkaz:
http://arxiv.org/abs/2408.00515
Autor:
Martínez-Romeu, Josep, Diez, Iago, Golat, Sebastian, Rodríguez-Fortuño, Francisco J., Martínez, Alejandro
Chiral optical forces exhibit opposite signs for the two enantiomeric versions of a chiral molecule or particle. If large enough, these forces might be able to separate enantiomers all optically, which would find numerous applications in different fi
Externí odkaz:
http://arxiv.org/abs/2406.18405
Providing timely support and intervention is crucial in mental health settings. As the need to engage youth comfortable with texting increases, mental health providers are exploring and adopting text-based media such as chatbots, community-based foru
Externí odkaz:
http://arxiv.org/abs/2406.11135
Electromagnetic quantities such as energy density, momentum, spin, and helicity bring meaning and intuition to electromagnetism and possess intricate interrelations, particularly prominent in complex non-paraxial near-fields. These quantities are con
Externí odkaz:
http://arxiv.org/abs/2405.15718
In the field of structured light, the study of optical vortices and their vectorial extension--vectorial vortex beams--has garnered substantial interest due to their unique phase and polarisation properties, which make them appealing for many potenti
Externí odkaz:
http://arxiv.org/abs/2402.04349
Autor:
Martínez-Romeu, Josep, Díez, Iago, Golat, Sebastian, Rodríguez-Fortuño, Francisco J., Martínez, Alejandro
Optical forces can be chiral when they exhibit opposite signs for the two enantiomeric versions of a chiral molecule or particle. Such forces could be eventually used to separate enantiomers, which could find application in numerous disciplines. Here
Externí odkaz:
http://arxiv.org/abs/2310.16413
Autor:
Golat, Sebastian, Kingsley-Smith, Jack J., Diez, Iago, Martinez-Romeu, Josep, Martínez, Alejandro, Rodríguez-Fortuño, Francisco J.
Publikováno v:
Phys. Rev. Research 6, 023079 (2024)
Optical fields can exert forces of chiral nature on molecules and nanoparticles, which would prove extremely valuable in the separation of enantiomers with pharmaceutical applications, yet it is inherently complex, and the varied frameworks used in t
Externí odkaz:
http://arxiv.org/abs/2310.11272
Autor:
Vernon, Alex J., Golat, Sebastian, Rigouzzo, Claire, Lim, Eugene A., Rodríguez-Fortuño, Francisco J.
Light carries intrinsic spin angular momentum (SAM) when the electric or magnetic field vector rotates over time. A familiar vector equation calculates the direction of light's SAM density using the right hand rule with reference to the electric and
Externí odkaz:
http://arxiv.org/abs/2310.03804
Metasurfaces with linear phase gradients can redirect light beams. We propose controlling both phase and amplitude of a metasurface to extend Snell's law to the realm of complex angles, enabling a non-decaying transmission through opaque media with c
Externí odkaz:
http://arxiv.org/abs/2307.03654