The potential energy of non-resonant optimal bianisotropic particles in an electromagnetic field does not depend on time

Semchenko, I. V.; Khakhomov, Sergei; Balmakou, Aliaksei; Tretyakov, Sergei

doi:10.1051/epjam/2014005

“…A semitransparent mirror would create a less intense reflected wave and hence would lead to weaker negative optical forces. It should be mentioned that other authors have shown that balanced chiral particles standing in free-space (satisfying a set of conditions more restrictive than ours) can be transparent to an incident circularly polarized electromagnetic field [46,47].…”

Section:  mentioning

confidence: 62%

“…being the "+" sign ("" sign) associated with an RCP (LCP) incident wave. Thus, after straightforward simplifications it is found that: that balanced chiral particles standing in free-space (satisfying a set of conditions more restrictive than ours) can be transparent to an incident circularly polarized electromagnetic field [46,47].…”

Section: Condition For the Optical Conveyor-belt Operationmentioning

confidence: 74%

Single-Beam Optical Conveyor Belt for Chiral Particles

Fernandes

¹

,

Silveirinha

²

2016

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A different paradigm is proposed to selectively manipulate and transport small engineered chiral particles and discriminate different enantiomers using unstructured chiral light. It is theoretically shown that the response of a chiral metamaterial particle may be tailored to enable an optical conveyor belt operation with no optical traps, such that for a fixed incident light helicity the nanoparticle is either steadily pushed towards the direction of the photon flow or steadily pulled against the photon flow, independent of its position. Our findings create distinct opportunities for unconventional optical manipulations of tailored nanoparticles and may have applications in sorting racemic mixtures of artificial chiral molecules and in particle delivery.

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“…The metal helices are widely used as elements of metamaterials because at transmission of electrical current in them the electric dipole moments and magnetic moments are simultaneously generated. Consequently metamaterial based on helical elements displays as dielectric and magnetic properties, which enhances its use [1][2][3][4][5][6][7][8][9][10][11] (Fig.1). A special place among the helices take bifilar helices consisting of two helical conductors.…”

Section: Introductionmentioning

confidence: 99%

The equilibrium state of bifilar helix as element of metamaterials

Semchenko¹,

Samofalov²,

Qian³

et al. 2016

Proc. 14th Int. Conf. On Global Research and Education, Inter-Academia 2015

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In the present article, we study the long bifilar helix in which electric currents are quasi-stationary, i.e. the wavelength of the electromagnetic field is much longer than the turn of the helix. All components of the force acting on a physically small element of one helix from the other helix having a big length are calculated. The case when the currents in the two helices have the same direction relative to the x axis is considered. The dependence of the radial component of the force of interaction between two helices on the pitch angle is determined. At various pitch angles the helices can attract and repel each other while the direction of the current does not change. It is found the value of pitch angle when two helices do not interact and bifilar helix, formed by them, is in equilibrium state.

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“…The metal helices are widely used as elements of metamaterials because at transmission of electrical current in them the electric dipole moments and magnetic moments are simultaneously generated. Consequently metamaterial based on helical elements displays as dielectric and magnetic properties, which enhances its use [1][2][3][4][5][6][7][8][9][10][11] (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

The equilibrium state of bifilar helix as element of metamaterials

Semchenko

¹

,

Khakhomov

²

,

Samofalov

³

et al. 2016

JJAP Conf. Proc.

0

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In the present article, we study the long bifilar helix in which electric currents are quasi-stationary, i.e. the wavelength of the electromagnetic field is much longer than the turn of the helix. All components of the force acting on a physically small element of one helix from the other helix having a big length are calculated. The case when the currents in the two helices have the same direction relative to the x axis is considered. The dependence of the radial component of the force of interaction between two helices on the pitch angle is determined. At various pitch angles the helices can attract and repel each other while the direction of the current does not change. It is found the value of pitch angle when two helices do not interact and bifilar helix, formed by them, is in equilibrium state.

show abstract

The potential energy of non-resonant optimal bianisotropic particles in an electromagnetic field does not depend on time

Cited by 5 publications

References 10 publications

Single-Beam Optical Conveyor Belt for Chiral Particles

Single-Beam Optical Conveyor Belt for Chiral Particles

The equilibrium state of bifilar helix as element of metamaterials

The equilibrium state of bifilar helix as element of metamaterials

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