Transmission through a perforated metal film by applying an external magnetic field

Zhou, Renlong; Li, Hongjian; Zhou, Bingju; Wu, Lijun; Liu, Xiaojuan; Gao, Yunlong

doi:10.1016/j.ssc.2008.11.036

Cited by 11 publications

(3 citation statements)

References 30 publications

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“…When the wavelength of incident light is larger than the hole size and the array period, it was found that the frequency of the transmission peak depends strongly on both the magnitude and the direction of the applied in-plane magnetic field. This idea was further developed in [93][94][95][96][97][98].…”

Section: B Non-reciprocal and One-way Devicesmentioning

confidence: 99%

Magneto-plasmonic nanoantennas: Basics and applications

2016

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Plasmonic nanoantennas is a hot and rapidly expanding research field. Here we overview basic operating principles and applications of novel magneto-plasmonic nanoantennas, which are made of ferromagnetic metals and driven not only by light, but also by external magnetic fields. We demonstrate that magneto-plasmonic nanoantennas enhance the magneto-optical effects, which introduces additional degrees of freedom in the control of light at the nano-scale. This property is used in conceptually new devices such as magneto-plasmonic rulers, ultra-sensitive biosensors, one-way subwavelength waveguides and extraordinary optical transmission structures, as well as in novel biomedical imaging modalities. We also point out that in certain cases 'non-optical' ferromagnetic nanostructures may operate as magneto-plasmonic nanoantennas. This undesigned extra functionality capitalises on established optical characterisation techniques of magnetic nanomaterials and it may be useful for the integration of nanophotonics and nanomagnetism on a single chip.

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Section: B Non-reciprocal and One-way Devicesmentioning

confidence: 99%

Magneto-plasmonic nanoantennas: Basics and applications

2016

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“…For example, periodically arranged slot waveguides can be used as tunable filters. At first, this kind of filters were made of semiconductor gratings with subwavelength slits [69][70][71][72][73]. By changing the external magnetic fields, the propagation of SMPs in the slits is modulated, which leads to the shift of the transmission peak, as shown in Figure 6A and B.…”

Section: Surface Magneto Plasmons In Slot Waveguides and Their Applicmentioning

confidence: 99%

Surface magneto plasmons and their applications in the infrared frequencies

Zhang

Wang

2015

Nanophotonics

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Due to their promising properties, surface magneto plasmons have attracted great interests in the field of plasmonics recently. Apart from flexible modulation of the plasmonic properties by an external magnetic field, surface magneto plasmons also promise nonreciprocal effect and multi-bands of propagation, which can be applied into the design of integrated plasmonic devices for biosensing and telecommunication applications. In the visible frequencies, because it demands extremely strong magnetic fields for the manipulation of metallic plasmonic materials, nano-devices consisting of metals and magnetic materials based on surface magneto plasmon are difficult to be realized due to the challenges in device fabrication and high losses. In the infrared frequencies, highly-doped semiconductors can replace metals, owning to the lower incident wave frequencies and lower plasma frequencies. The required magnetic field is also low, which makes the tunable devices based on surface magneto plasmons more practically to be realized. Furthermore, a promising 2D material-graphene shows great potential in infrared magnetic plasmonics. In this paper, we review the magneto plasmonics in the infrared frequencies with a focus on device designs and applications. We investigate surface magneto plasmons propagating in different structures, including plane surface structures and slot waveguides. Based on the fundamental investigation and theoretical studies, we illustrate various magneto plasmonic micro/ nano devices in the infrared, such as tunable waveguides, filters, and beam-splitters. Novel plasmonic devices such as one-way waveguides and broad-band waveguides are also introduced.

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“…3, 5, several attempts were made to consider different MO effects in the case of light propagating through a perforated metallic film. [7][8][9][10][11][12][13][14][15][16] However in all of them only the Faraday configuration was considered, where the magnetic field B 0 is normal to the film plane. In none of them, as far as we know, was the Voigt configuration, (i.e., where the magnetic field is applied parallel to the film plane) considered.…”

mentioning

confidence: 99%

Magneto-induced anisotropy of Voigt effect and other magneto-optical phenomena in ordered metal-dielectric metamaterials

Strelniker

Bergman

2013

SPIE Proceedings

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When an applied magnetic field has an arbitrary direction with respect to the lattice axes of a periodically microstructured or nanostructured metamaterial, the effective permittivity tensor of the metamaterial sample becomes anisotropic and all its components can be nonzero. This is true even if the microstructure has a high symmetry, e.g., cubic or triangular. It is found that the strong magneto-induced anisotropy which appears in the macroscopic response leads to unusual anisotropic behavior of the Voigt effect and other magneto-optical (MO) effects. I.e., these phenomena become strongly dependent on the direction of the applied static magnetic field, as well as on the direction of the time dependent electromagnetic field, with respect to the symmetry axes of the periodic microstructure.It is known that the Voigt, Faraday and other magneto-optical (MO) effects can be significantly enhanced in the vicinity of an electromagnetic (EM) resonance. One such resonance, which is currently under intensive study, is the surface plasma resonance. It is widely believed that this or similar resonances are responsible for the Extraordinary Light Transmission (ELT) through a metal film, perforated by a periodic array of subwavelength holes. 1 Application of a static magnetic field B 0 to such systems (see Fig. 1) induces strong optical and transport anisotropy and leads to the appearance of additional off-diagonal tensor components in the macroscopic permittivity tensorε e (see Fig. 2) and changes the frequency of the surface plasma resonance 2-4 Therefore, the application of a static magnetic field to a conducting system with dielectric islands or to a dielectric system with metallic islands should lead to the appearance of strong magneto-optical effects and to possibilities for the manipulation of light propagation. 2, 3, 5, 6After the phenomenon of ELT in the presence of applied static magnetic field was discussed in Refs. 3, 5, several attempts were made to consider different MO effects in the case of light propagating through a perforated metallic film. 7-16 However in all of them only the Faraday configuration was considered, where the magnetic field B 0 is normal to the film plane. In none of them, as far as we know, was the Voigt configuration, (i.e., where the magnetic field is applied parallel to the film plane) considered. From intuitive physical considerations we expect that when an in-plane magnetic field is rotated with respect to the main axes of the microstructure, a magneto-induced angular anisotropy of the different MO effects will be observed. In this manuscript we consider the general case of arbitrary orientation of the magnetic filed with respect to the film microstructure.In the case where B 0 has an arbitrary direction with respect to the lattice axes of the microstructure all components of the permittivity tensor can be nonzero. 2, 3, 5 When both the external magnetic field B 0 and the EM electric field E are rotated in the film plane, the angular profiles of all the permittivity tensor components ar...

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Transmission through a perforated metal film by applying an external magnetic field

Cited by 11 publications

References 30 publications

Magneto-plasmonic nanoantennas: Basics and applications

Magneto-plasmonic nanoantennas: Basics and applications

Surface magneto plasmons and their applications in the infrared frequencies

Magneto-induced anisotropy of Voigt effect and other magneto-optical phenomena in ordered metal-dielectric metamaterials

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