Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Tulkki, Jukka"'
Chiral-stress-energy-momentum tensor for covariant description of spin and torque densities of light
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
Proc. SPIE 12901, Complex Light and Optical Forces XVIII, 129010F (2024)
The measurement of the spin angular momentum of circularly polarized light by Beth [Phys. Rev. 50, 115 (1936)] can be explained by using a microscopic torque density. However, the experiment does not resolve the space- and time-dependent evolution of
Externí odkaz:
http://arxiv.org/abs/2403.10466
Autor:
Partanen, Mikko, Tulkki, Jukka
The Standard Model of particle physics describes electromagnetic, weak, and strong interactions, which are three of the four known fundamental forces of nature. The unification of the fourth interaction, gravity, with the Standard Model has been chal
Externí odkaz:
http://arxiv.org/abs/2310.01460
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
Physical Review A 109, 032224 (2024)
Quantum electrodynamics (QED) is the most accurate of all experimentally verified physical theories. How QED and other theories of fundamental interactions couple to gravity through special unitary symmetries, on which the standard model of particle
Externí odkaz:
http://arxiv.org/abs/2310.02285
Publikováno v:
Physical Review A 107, 023525 (2023)
Electrostriction, the deformation of dielectric materials under the influence of an electric field, is of continuous interest in optics. The classic experiment by Hakim and Higham [Proc. Phys. Soc. 80, 190 (1962)] for a stationary field supports a di
Externí odkaz:
http://arxiv.org/abs/2211.08040
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
Optics Express 30, 28577 (2022)
We present a position- and time-dependent optical force theory for optomechanics of dispersive 3D photonic materials and devices. The theory applies to media including material interfaces, waveguides, and general photonic crystal structures. The theo
Externí odkaz:
http://arxiv.org/abs/2112.11128
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
Scientific Reports 12, 6753 (2022)
The momentum and radiation pressure of light in negative-index metamaterials (NIMs) are commonly expected to reverse their direction from what is observed for normal materials. The negative refraction and inverse Doppler effect of light in NIMs have
Externí odkaz:
http://arxiv.org/abs/2105.08193
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
Phys. Rev. A 104, 023510 (2021)
The relativistic theory of the time- and position-dependent energy and momentum densities of light in glasses and other low-loss dispersive media, where different wavelengths of light propagate at different phase velocities, has remained a largely un
Externí odkaz:
http://arxiv.org/abs/2105.04053
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
Physical Review A 100, 017801 (2019)
In a recent paper [I. Brevik, Phys. Rev. A 98, 043847 (2018)], Brevik analyzed the experiment by Kundu et al. [A. Kundu et al., Sci. Rep. 7, 42538 (2017)] reporting deformation of a graphene oxide (GO) film after it has been irradiated by a laser bea
Externí odkaz:
http://arxiv.org/abs/1907.07300
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
New Journal of Physics 21, 073062 (2019)
In the recently introduced mass-polariton (MP) theory of light [Phys. Rev. A 95, 063850 (2017)], the optical force of light drives in a medium forward an atomic mass density wave. In this work, we present the Lagrangian formulation of the MP theory s
Externí odkaz:
http://arxiv.org/abs/1905.09218
Autor:
Partanen, Mikko, Tulkki, Jukka
Publikováno v:
Phys. Rev. A 99, 033852 (2019)
In the mass-polariton (MP) theory of light formulated by us recently [Phys. Rev. A 95, 063850 (2017)], light in a medium is described as a coupled state of the field and matter. The key result of the MP theory is that the optical force of light propa
Externí odkaz:
http://arxiv.org/abs/1811.09456