An ultrathin metasurface carpet cloak based on the generalized sheet transition conditions

Zhang, Yunfeng; Tong, Yuanwei

doi:10.1016/j.optcom.2020.126590

Cited by 9 publications

(6 citation statements)

References 24 publications

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“…Due to their exceptional EM properties, metamaterials have generated great interest during the past 20 years [172][173][174][175]. Metamaterials such as negative-index media [176], zero-index materials [177], and ultra-high-index materials [178] are arrays of specially structured scattering components that have been systematically created.…”

Section: Metasurface-based Sensorsmentioning

confidence: 99%

A Review on Photonic Sensing Technologies: Status and Outlook

et al. 2023

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In contemporary science and technology, photonic sensors are essential. They may be made to be extremely resistant to some physical parameters while also being extremely sensitive to other physical variables. Most photonic sensors may be incorporated on chips and operate with CMOS technology, making them suitable for use as extremely sensitive, compact, and affordable sensors. Photonic sensors can detect electromagnetic (EM) wave changes and convert them into an electric signal due to the photoelectric effect. Depending on the requirements, scientists have found ways to develop photonic sensors based on several interesting platforms. In this work, we extensively review the most generally utilized photonic sensors for detecting vital environmental parameters and personal health care. These sensing systems include optical waveguides, optical fibers, plasmonics, metasurfaces, and photonic crystals. Various aspects of light are used to investigate the transmission or reflection spectra of photonic sensors. In general, resonant cavity or grating-based sensor configurations that work on wavelength interrogation methods are preferred, so these sensor types are mostly presented. We believe that this paper will provide insight into the novel types of available photonic sensors.

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Section: Metasurface-based Sensorsmentioning

confidence: 99%

A Review on Photonic Sensing Technologies: Status and Outlook

et al. 2023

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“…This modelling method relies on the FEM and thus on the variational formulation associated with the vectorial form of the wave equation. In general, this formulation is given in the frequency domain as: (16) where D is the set of domains present in the simulation and B ∂D is a surfacic integral accounting for the boundary conditions on the domains borders ∂D and given by:…”

Section: Finite Element Implementationmentioning

confidence: 99%

“…These transition conditions conceal in a tensorial form the equivalent response occurring on reflect-ing and transmitting fields at complex interfaces. Efforts to reproduce above-mentioned intriguing effects using GSTC formulation, including anomalous refraction, cloaking and vectorial electromagnetic field control have been realized recently [15,16]. But so far, modelling relied on Idemen's original work, and most papers dealing with GSTCs only considered layers manufactured on planar surfaces.…”

Section: Introductionmentioning

confidence: 99%

Susceptibility synthesis of arbitrary shaped metasurfaces

et al. 2022

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Visual perception relies on light scattering at the object's surface in the direction of observation. By engineering the surface scattering properties, it is possible to realize arbitrary visual percept. Here, we address theoretically this problem of electromagnetic field transition conditions at conformal interfaces to achieve surface topography-dependent transmitted and reflected fields. Our analysis, supported by two-and three-dimensional finite element simulations, provides a solid theoretical framework to design metasurfaces for cloaking, wearable optics and next generation of freeform imaging systems.

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“…The axicon lens solution was more commonly used since the first approach has poor quality, with most incident waves being obstructed by the aperture [ 129 , 152 , 153 , 154 ]. The introduction of metasurface (hereafter referred to as MS) flat optics [ 155 , 156 ], which allowed for advanced regulation of phase and amplitude on a subwavelength scale as well as management of dispersion properties, gave a new impetus to the expansion of axicon lens [ 157 , 158 , 159 ]. The Huygens theorem defines light propagation as a wavefront formed by the sum of spherical wavelets.…”

Section: Meta-axicons-flat Opticsmentioning

confidence: 99%

Modern Types of Axicons: New Functions and Applications

Хонина

Kazanskiy

Khorin

et al. 2021

Sensors

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Axicon is a versatile optical element for forming a zero-order Bessel beam, including high-power laser radiation schemes. Nevertheless, it has drawbacks such as the produced beam’s parameters being dependent on a particular element, the output beam’s intensity distribution being dependent on the quality of element manufacturing, and uneven axial intensity distribution. To address these issues, extensive research has been undertaken to develop nondiffracting beams using a variety of advanced techniques. We looked at four different and special approaches for creating nondiffracting beams in this article. Diffractive axicons, meta-axicons-flat optics, spatial light modulators, and photonic integrated circuit-based axicons are among these approaches. Lately, there has been noteworthy curiosity in reducing the thickness and weight of axicons by exploiting diffraction. Meta-axicons, which are ultrathin flat optical elements made up of metasurfaces built up of arrays of subwavelength optical antennas, are one way to address such needs. In addition, when compared to their traditional refractive and diffractive equivalents, meta-axicons have a number of distinguishing advantages, including aberration correction, active tunability, and semi-transparency. This paper is not intended to be a critique of any method. We have outlined the most recent advancements in this field and let readers determine which approach best meets their needs based on the ease of fabrication and utilization. Moreover, one section is devoted to applications of axicons utilized as sensors of optical properties of devices and elements as well as singular beams states and wavefront features.

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An ultrathin metasurface carpet cloak based on the generalized sheet transition conditions

Cited by 9 publications

References 24 publications

A Review on Photonic Sensing Technologies: Status and Outlook

A Review on Photonic Sensing Technologies: Status and Outlook

Susceptibility synthesis of arbitrary shaped metasurfaces

Modern Types of Axicons: New Functions and Applications

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