Anomalous lightbending phenomena, including negative angles of refraction and reflection, are observed in the operational wavelength range. Nanostructured holograms for broadband manipulation of. The precise manipulation of a propagating wave using phase control is a fundamental building block of optical systems. This kind of nanolink could be used as a simple and practical solution to realize efficient broadband wireless nanolink. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. As nanofabrication technology progresses, the emerging metasurface has offered unique opportunities for holography, such as an increased data capacity and the realization of polarizationsensitive functionality. Aug 22, 2016 since these vshaped nanoantennas are polarization specific and do not show any plasmonic resonances at the third harmonic frequency, the phase is not changing on propagation through the sample. Most current plasmonic antennas, however, only enable light trapping in the visible region and within a narrow range. Nevertheless, their inherently low efficiency in visible light raises certain concerns for practical applications. Broadband plasmonic antenna enhanced upconversion and its. They have been used for light bending 1,2 and other applications. Jan 27, 2012 broadband light bending with plasmonic nanoantennas. Plasmonic antennas as design elements for coherent.
Ieee transactions on antennas and propagation 2020, 68 1, 4353. Broadband optical chirality using ultrathin metasur face. Anomalous light bending phenomena, including negative angles of refraction and reflection, are observed in the operational wavelength range. Plasmonic metalsemiconductor heterostructures for hotelectrondriven photochemistry. Shalaev, broadband light bending with plasmonic nanoantennas, science 3356067, 427 2012.
Plasmonic nanoantenna optimization using characteristic mode analysis. Based on finiteelementmethod fem simulationsin agreement with filteredcoupleddipoleapproximations fcdawe explore the tunability and. By designing a broader and polarizationindependent light harvesting structure, the performance of such plasmonic photovoltaic devices could signifi cantly be improved. Broadband wireless optical nanolink composed by dipole. However, midinfrared plasmonic resonances in graphene nanostructures are usually weak and narrowbanded, limiting their potential in light manipulation and detection. Hybrid bilayer plasmonic metasurface efficiently manipulates. Kuznetsov, new material platforms for dielectric nanoantennas and metasurfaces in international conference on materials for advanced technologies, materials society of singapore, 2017.
Generalized snells law and bending nearir light with optical nanoantennae. Tunable and broadband plasmonic absorption via dispersible nanoantennas with sub. Manipulation of polarization and spatial properties of light. Aug 10, 2019 broadband light bending with plasmonic nanoantennas. One of the primary applications of holography is the lensless projection of twodimensional 2d graphs or 3d. One of the first strategies to achieve directional scattering from plasmonic nanoantennas has been the extrapolation of established designs from. Multicolor 3d metaholography by broadband plasmonic modulation. This article discusses the basics of understanding plasmonic nanoantennas and the applications they can be used in. The twists and turns of plasmonic antenna design optics. Broadband light bending with plasmonic nanoan tennas. The concept is numerically and experimentally demonstrated at visible frequencies using several designs of tio 2 titanium dioxide nanoantennas for medium. Plasmonic au nanoparticles for enhanced broadband light. Broadband light bending with plasmonic nanoantennas by. An example of a broadband planar rf bowtie antenna is shown in figure 1a 23.
An electromagnetic metasurface refers to a kind of artificial sheet material with subwavelength thickness. Visiblefrequency metasurfaces for broadband anomalous. Broadband light bending with plasmonic nanoantennas penn. Asymmetric nanoantennas for ultrahigh angle broadband visible. Unidirectional broadband light emission from supported plasmonic nanowires. It has a broad range of applications in microscopy, in beam shaping, and in the entertainment industry 111.
The structure consists of a gold nanoring and bowties at the. Nanostructured holograms for broadband manipulation of vector. Broadband light bending with plasmonic nanoantennas, science 2011. Ni x1, emani nk, kildishev av, boltasseva a, shalaev vm. For different samples, the fabrication processes are different. Highly doped semiconductors have been proposed as innovative materials for. High efficiency, broadband and flexible plasmonic absorbers on motheye pdms substrates were fabricated by sputtering.
The spinselected dualwavelength metalenses with two similar and two. Broadband nanoantennas for plasmon enhanced fluorescence and. Here, we outline a simple yet powerful design principle to perceive a nanoantenna that provides directional scattering into a higher index substrate based on the interference of multiple electric. Pdf coupling of light from microdisk lasers into plasmonic nano. Asymmetric nanoantennas for ultrahigh angle broadband. Furthermore, the circularly polarized light converted to crosspolarized light and the linearly polarized light decomposed into two cp states with opposite transmission angle after passing through the metasurface with a high conversion efficiency of 87. Here, we investigate the coupling among graphene plasmonic nanostructures and further show that, by. Light illuminating on the nanoantennas layer approximately acquires paraboloidal phase profile and then focuses into a spot. Fang1, 1 department of mechanical science and engineering and beckman institute of advanced science and technology, university of illinois at urb anachampaign, urbana, illinois 61801, usa. Broadband nanoantennas for plasmon enhanced fluorescence and raman spectroscopies zhengdong yong1, senlin zhang1, yongjiang dong1, and sailing he1, 2, abstractwe propose a novel design of broadband plasmonic nanoantenna that is suitable for. Request pdf broadband light bending with plasmonic nanoantennas the precise manipulation of a propagating wave using phase control is a fundamental building block of optical systems. This is accomplished by using an extremely thin plasmonic layer.
Plasmonic nanoantennas are a hot and rapidly expanding research field. Jan 27, 2012 this is accomplished by using an extremely thin plasmonic layer. The building block to construct the metahologram is a set of nanoslit antennas, which is based on the pancharatnamberry phase tuning 3035 to modulate the transmitted light. The design of these metallic nanoantennas is different from the. The degree of directionality can be controlled through the nanowire radius and its dielectric environment and the effect can be interpreted in terms. Broadband light bending with plasmonic nanoantennas nasaads. Since these vshaped nanoantennas are polarization specific and do not show any plasmonic resonances at the third harmonic frequency, the phase is. Circular lens composed of annularly arranged metal nanoantennas is proposed to achieve far field superresolution focusing. Naresh emani, egor khaidarov, ramom paniaguadominguez, yuan hsing fu, vytautas valuckas, shunpeng lu, xueliang zhang, sweetiam tan, hilmi volkan demir and arseniy i.
The spinselected dualwavelength metalenses with two similar and. Osa broadband reflective lens in visible band based on. T1 broadband light bending with plasmonic nanoantennas. Metasurfaces operating in the crosspolarization scheme have shown an interesting degree of control over the wavefront of transmitted light. Asymmetric nanoantennas for ultrahigh angle broadband visible light bending article in nano letters 1710 september 2017 with 85 reads how we measure reads. Broadband optical chirality using ultrathin metasurface.
Coupling of light from microdisk lasers into plasmonic nanoantennas. This is achieved by precise engineering of the scattering pattern of the nanoantennas. Broadband light bending with plasmonic nanoantennas citeseerx. A thin film broadband absorber based on multisized. They enhance the interaction between light and matter, and hence. Trapezoid arrays for broadband resonant absorption. Surfaceenhanced infrared absorption seira spectroscopy using adapted nanoantenna substrates is an efficient technique for the selective detection of molecules by their vibrational spectra, even in small quantity. Coherent control of snells law at metasurfaces nanophotonics. Unidirectional broadband light emission from supported. The design strategy relies on replacing the large openings of conventional holograms by arrays of subwavelength apertures, oriented to locally select a particular state of polarization. Broadband light bending with plasmonic nanoantennas request pdf. Metal nanowires are thought to become key elements in future nanophotonics applications.
Flexible broadband plasmonic absorber on motheye substrate. Here we show that single crystal silver nanowires supported on a dielectric interface behave similar to broadband unidirectional antennas for visible light. Broadband light bending with plasmonic nanoantennas xingjie ni, naresh k. Abstracttailored plasmonic nanoantennas are needed for diverse applications, among those sensing. Abstract the precise manipulation of a propagating wave using phase control is a fundamental building block. Strong and directionally specific forward scattering from optical nanoantennas is of utmost importance for various applications in the broader context of photovoltaics and integrated light sources. Midwave infrared metasurface microlensed focal plane array for. Broadband light bending with plasmonic nanoantennas. Dualpolarity plasmonic metalens for visible light nature. Several novel spinselected dualwavelength metalenses have been proposed and investigated based on the plasmonic metasurface consisting of two kinds of rotary rectangle gap nanoantennas rgn, which are designed based on merging two or four polarityinverse lenses corresponding to different wavelengths 765 and 0 nm. Since sunlight is a broadband light source, plasmonic nanostructures in opv devices that can be fabricated enhancing light absorption in a wide spectral range of 350 nm could be one of the most potential routes to further increase pce of opv devices beyond the.
Here we overview basic operating principles and applications of novel magnetoplasmonic nanoantennas, which are made of ferromagnetic metals and driven not only by light, but also by external magnetic fields. Superresolution focusing using metasurface with circularly. Wavefront control is also applied in 3 for deflection of circularly polarized light, through the rotation of an anisotropic nanoantenna structure across the metasurface. Abstract the precise manipulation of a propagating wave using phase control is. Shalaev school of electrical and computer engineering and birck nanotechnology center, purdue university.
We demonstrate a flat optical lens based on plasmonic reflectarray metasurface, which consists of a planar array of hyperbolicshaped aluminum al nanoantenna separated from an al ground plane by a sio2 spacer. But its been tough to design nanoscale plasmonic antennas that combine broadband operation, insensitivity to polarization of the light, and wide field of viewall while keeping the losses endemic to plasmonic devices to a minimum, and efficiently focusing the light down to a subwavelength area. Highefficiency cross polarization converters by plasmonic. Nanoantennas are generally made up of metals like aluminum, silver, or gold that are known to support plasmonic resonances in the nearinfrared. Plasmonic nanoantennas show promise in optical innovations. The gradual change in the width of the al nanoantenna enables unique broadband 400700 nm to focus on the visible band because of its hyperbolic reflectionphase profile. In this paper, by exploiting plasmonic nanoantennas, we demonstrate the complete design of broadband wireless links and networks in the realm. We report a new type of holographic interface, which is able to manipulate the three fundamental properties of light phase, amplitude, and polarization over a broad wavelength range. The transmitter and receiver are composed by broadband dipoleloop linear antennas, which are simpler to design and fabricate than other antennas with complex geometries. The optimized absorber has an integrated absorption efficiency of 95.
May 26, 2015 we investigate the optical response of a gold nanocube antenna supported by a highpermittivity dielectric nanocuboid substrate and propose schemes for broadband tailoring of its plasmonic resonances via alteration in imagecharge screening. Generalized snells law and bending nearir light with optical nanoantennae broadband light bending with plasmonic nanoantennas. Broadband nanophotonic wireless links and networks using. In electromagnetic theory, metasurfaces modulate the behaviors of electromagnetic waves through specific boundary. Nov, 2012 figure 1 shows a schematic of the designed plasmonic bipolar lens that consists of dipole nanoantennas with the. These nanoantennas are made of metallic cells on the quartz substrate, as shown in fig. Ir portions of the electromagnetic spectrum can be synthesized. Broadband light bending with plasmonic nanoantennas science.
Broadband light bending with plasmonic nanoantennas ni, xingjie. Shalaev, broadband light bending with plasmonic nanoantennas, science. These nanoantennas are made of metallic cells on the quartz. This cited by count includes citations to the following articles in scholar. Note that, although the operating range is slightly smaller than the one predicted via numerical simulations, it still covers a range of 1 khz, that is approximately a 24. Without sacrificing the ultrathin flat design, we propose a bilayer plasmonic metasurface operating at visible frequencies, obtained by. Mar 10, 2015 furthermore, the circularly polarized light converted to crosspolarized light and the linearly polarized light decomposed into two cp states with opposite transmission angle after passing through the metasurface with a high conversion efficiency of 87. Tunable and broadband plasmonic absorption via dispersible.
Shalaev t he phase of a light wave can be controlled by using bulk optical elements like lenses and mirrors to modify the wavefront of the propagating light. Highly doped semiconductor plasmonic nanoantenna arrays. Couplingenhanced broadband midinfrared light absorption. Substratemediated broadband tunability in plasmonic. 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. Metasurfaces control light beams by engineering the wavefront of light across the surface. Metasurfaces can be either structured or unstructured with subwavelengthscaled patterns in the horizontal dimensions. View enhanced pdf access article on wiley online library. Multicolor threedimensional 3d metahologram imaging is one of the most pursued applications for metahologram not yet realized. Nonlinear metamaterials for holography nature communications. Plasmons in graphene nanostructures show great promise for midinfrared applications ranging from a few to tens of microns. The ones marked may be different from the article in the profile. The phase of a light wave can be controlled using bulk optical elements like lenses and mirrors to modify the wave front of the propagating light. Nov 04, 2016 holography provides a promising way to design and reconstruct electromagnetic waves with a desired phase and amplitude.