A terahertz plasmonic metamaterial structure for nearfield sensing applications. The selfassembly of monodisperse inorganic nanoparticles into highly ordered arrays superlattices represents an exciting route to materials and devices with new functions. Despite advantages such as quantitative detection, localized surfaceplasmon. Nanoporous gold can be exploited as plasmonic material for enhanced spectroscopy both in the visible and in the nearinfrared spectral regions. Nanocone metamaterial fabrication arrays of gold nanocones are fabricated by machining arrays of free standing gold nanorods figure 1 using oblique angle argon ion beam milling figure 2 48. Plasmonic nanorod metamaterials for biosensing nasaads. Controlling random lasing with threedimensional plasmonic.
A functionalized thz sensor for marker free dna analysis. In a label free manner, the resonance shift by single. The ultimate sensitivity of biosensing is the possibility to detect single binding or unbinding events. Light is strongly confined through funneling mechanisms and excites resonances that sense the analyte medium. Tunnelinginduced optical emission from plasmonic nanorod metamaterials. Plasmons are produced from the interaction of light with metaldielectric materials. Plasmonic nanorod metamaterials for biosensing nat. Conspectusplasmonic nanostructures were initially developed for sensing and nanophotonic applications but, recently, have shown great promise in chemistry, optoelectronics, and nonlinear optics. We experimentally demonstrate a planar metamaterial analogue of electromagnetically induced transparency at optical frequencies. In particular, this unique optical property has given great. Reactive tunnel junctions in electricallydriven plasmonic nanorod. Midinfrared plasmonic biosensing with graphene daniel rodrigo,1 odeta limaj,1 davide janner,2 dordaneh etezadi,1 f. Labelfree plasmonic biosensors rely either on surface plasmon polaritons or on localized surface plasmons on continuous or nanostructured. Plasmonic biosensors are either based on freely propagating surface plasmons or plasmons localized at nanostructures.
Colorsensitive and spectrometerfree plasmonic sensor for. Now a research group has used one such metamaterial, created using gold nanorods, for designing a sensitive label free biosensor. Metamaterials comprising of plasmonic nanospheres and. Oct 28, 2009 metamaterials are defined by wikipedia as artificial materials engineered to provide properties which may not be readily available in nature. Pdf plasmonic nanorod metamaterials for biosensing. Reactive tunnel junctions in electricallydriven plasmonic. This dissertation presents physical modeling and numerically efficient analyses of the interaction between electromagnetic waves and clusters of metamaterials comprising of coreshell nanoparticles and plasmonic nanorods. Analysis of molecular interaction and conformational dynamics of biomolecules is of paramount importance in understanding their vital functions in complex biological systems, disease detection, and new drug development. Chen, selective targeting of gold nanorods at the mitochondria of cancer. Optical properties of such metamaterials are determined by strong interaction between plasmonic resonances of the individual nanorods and are due to collective plasmonic response of the nanorod ensemble. Strong localized surface plasmon resonance lspr generation by. B schematic of the tunneling process showing both elastic and inelastic tunneling pathways. Drachev has published more than 90 papers in refereed journals, 8 book chapters and received 5 patents.
The use of nonlocality to enhance the nonlinear optical response of metamaterials, demonstrated here in plasmonic nanorod composites, could lead to ultrafast, lowpower alloptical information. Planar metamaterial analogue of electromagnetically. Osa optical bistability based on hyperbolic metamaterials. Dnabased selfassembly of chiral plasmonic nanostructures with tailored optical response. For a ag nw on glass substrate, by depositing 1 nm of al 2 o 3 onto the nw, the increase of the sp radiation angle can be close to 1 degree, which provides another way to use plasmonic nw for new type sensors. Random lasers, plasmonics, metamaterials, lasing mode con. Nanostructured plasmonic sensors northwestern university. We numerically demonstrate optical bistability in a nonlinear multilayer structure by utilizing the unique dispersion of hyperbolic metamaterials. Plasmonic biosensors based upon surface plasmon resonance and localized surface plasmon resonance have become the predominant workhorse for detecting accumulated biomass caused. Plasmonic external cavity laser refractometric sensor. While substantial progress has been achieved in the fabrication of.
A plasmonic metamaterial is a metamaterial that uses surface plasmons to achieve optical properties not seen in nature. The surface plasmonic effect, which is the resonant oscillation of light and free electrons on the surface of metal, has been studied and used in various applications due to its very distinctive and interesting phenomenon beck et al. Engineering nonlinearities in plasmonic nanorod metamaterials. The optical properties of various nanostructures have been widely adopted for biological detection, from dna sequencing to nanoscale single molecule biological function measurements. However, the interpretation of nanoplasmonic sensing data is complicated by the spatial inhomogeneity of the nearfield response and the stochastic nature of moleculenanoparticle interactions, which makes it difficult. Structural and optical properties of plasmonic nanorod metamaterials. Several methods have been developed for this purpose, including labelfree plasmonic biosensors based on metamaterials.
Plasmonics and plasmonic metamaterials world scientific. The linear transmission is varied sharply with topological transition of isofrequency contour of the multilayer structure, and this nonresonant scheme enables realization of optical bistability with a short response time and a relatively low. Metamaterialsbased labelfree nanosensor for conformation. Sensors free fulltext plasmonic nanostructures for. Nearinfrared active metamaterials and their applications in. Optical biosensors based on plasmonic nanostructures ieee xplore. On one hand, it inherits the feature of metamaterials that the operation frequency can be widely tuned to bind the characteristic vibrations of biomolecules, and the spectral line shape can be engineered to be very sharp to obtain higher. Pdf tunnelinginduced broadband and tunable optical. Plasmonic nano and meta materials college of engineering. Oct 11, 2009 plasmonic biosensors are either based on freely propagating surface plasmons or plasmons localized at nanostructures. Due to their strongly enhanced optical nearfields, plasmonic nanostructures are promising candidates as ultrasensitive label free sensors of single molecule binding kinetics.
Nanomaterials free fulltext perfect dualband absorber. Largescale high aspect ratio aldoped zno nanopillars arrays. One important application of plasmonic metamaterials is biomedical sensing, which will be presented in section 5. Singular phase nanooptics in plasmonic metamaterials for. Singular phase nanooptics in plasmonic metamaterials for label free singlemolecule detection. The unique optical properties of surface plasmons sps have led to many important applications in multidisciplinary fields, such as chemistry, biology, materials, renewable energy and information sciences and technologies 15. We will then discuss some selfassembly techniques to implement sophisticated plasmonic metamaterials with fine features, and finally provide a conclusion and a brief perspective on this fascinating area of plasmonic metamaterials. As shown in figure 6d, asymmetric 7shaped nanorod antenna. Techniques based on plasmonic resonance can provide label free, signal enhanced, and realtime sensing means for bioparticles and bioprocesses at the molecular level. The structure consists of an optically bright dipole antenna and an optically dark quadrupole antenna, which are cutout structures in a thin gold film. Hierarchical porous plasmonic metamaterials consisting of periodic nanoholes with tunable diameter and uniformly distributed mesopores over the bulk are developed as a new class of 3d surface. Plasmonic biosensors based upon surface plasmon resonance and localized surface plasmon. Plasmonic nanohole arrays for label free kinetic biosensing in a lipid membrane environment antoine lesuffleur, kwan seop lim, nathan c. Sers, the plasmonic biosensors indeed are not suitable tools to interrogate vibrational signatures of conformational transitions required for biomolecules to interact.
The ability to engineer the properties of the fabricated structures is in demand, which can make the plasmonics and metamaterials structure active even after. Plasmonic metamaterials are realizations of materials first proposed by victor veselago, a russian theoretical physicist, in 1967. Metamaterialsbased labelfree nanosensor for conformation and a. A colorsensitive and spectrometer free sensing method using plasmonic nanohole arrays and the color components, l, a, and b, of the cielab defined by the international commission on illumination cie is introduced for the analysis of optically transparent materials in the visible range. Single nanoparticles also serve as nonbleaching labels or. A highly sensitive plasmonic biosensor, based on hyperbolic metamaterials, can detect biomolecules of ultralow molecular weight at picomolar concentrations. Shalaev, and alexandra boltasseva, school of electrical and computer engineering and birck nanotechnology center, purdue university, 1205 west state street, west. In particular, by employing localized surface plasmon resonance lspr, we can expect distinguished sensing performance with high sensitivity and resolution. The strong coupling interaction between propagating surface plasmons psp mode and localized surface plasmons lsp mode in the designed structure generates two sharp spectral features under normal incidence. Single plasmonic nanoparticles for biosensing sciencedirect.
We present a refractometric sensor realized as a stack of metallic gratings with subwavelength features and embedded within a lowindex dielectric medium. A consideration of the use of metamaterials for sensing applications. For the plasmonic nanorod structure, it is not possible to acquire the same dual band with perfect absorptance by optimizing a design without a crosshair nanorod combination due to less coupling among the cavities inside the nanorods and the gaps among the nanorods, i. Surface plasmon resonance spr refers to excited charge density oscillations that. In particular, the peculiar morphology of such a substrate leads to a higher field confinement with respect to conventional plasmonic materials. Biosensing using gold nanorod metamaterials all about. The reported sensitivity was 30,000nm per riu, with a maximum probe depth of 500nm at nir frequencies. Moreover, plasmonic nws provide various possibilities to combine different sensing platforms and design new sensing schemes. The recently discovered nonlocal optical behavior of plasmonic nanorod metamaterials enables an enhanced, ultrafast, nonlinear optical response. A pronounced couplinginduced reflectance peak is observed within a broad resonance spectrum. Ali yanik 2,3, and hatice altug 2,3,4, 1 electrical and electronics engineering, erciyes university, 38039, kayseri, turkey. Metamaterialsbased labelfree nanosensor for conformation and.
This electricallydriven plasmonic nanorod metamaterial platform can be useful for the. These developments are promising to revolutionize ways of generating, controlling and processing light in the nanoscale. Warrington, moses rodriguez and sanghyun oh c 1481 31st annual international conference of the ieee embs minneapolis, minnesota, usa, september 26, 2009. N2 recent developments have greatly improved the sensitivity of optical sensors based on metal nanoparticle arrays and single nanoparticles. A receptor green is immobilized inside the metalized woodpile structure, while its selective partner red binds into receptor sites, leading to a change of parameters for the reflected light. The main idea of chapter 2 is to design an array of coreshell plasmonic nanoparticles manipulating a desired nearfield. Sensors free fulltext plasmonic nanostructures for nano. Plasmonic sensors based on funneling light through. Unfortunately the properties of the plasmonic and metamaterials structures are fixed at the moment the fabrication process was done. Va, zayats av 2009 plasmonic nanorod metamaterials for biosensing. Plasmonc nanorod metamaterials for biosensing article pdf available in nature materials 811. Largescale high aspect ratio aldoped zno nanopillars arrays as anisotropic metamaterials e. However, plasmonic nanorod metamaterials show enhanced sensitivity solely in the infrared spectral region, and the sensing mechanism remains based on the bulk.
Lavrinenko2 1national center for micro and nanofabrication danchip, dk2800 kongens lyngby, denmark 2department of photonics engineering, technical university of. Compact and multiresonant plasmonic metamaterials based on nanoapertures mustafa turkmen 1,2,3, serap aksu 3,4, a. Typical plasmonic sensing utilizes either the resonance shift due to the local refractive index change upon molecular adsorption refractive index sensor, figure 1a or characteristic light radiation boosted by the strongly enhanced. This multiscale architecture not only facilitates efficient cascaded electromagnetic enhancement but also provides an enormous number of raman. Changes in the dielectric environment of nanostructured metals, such as nps, results in measurable shifts of the lspr peak position andor magnitude that can be used to perform label free chemical or biosensing in real. Using label nanoparticles, detection of single binding events by monitoring lspr peak shifts has been reported, in which single 100nm gold particles functionalized with dna on a substrate bind to 20nm gold nanoparticles with cdna in solution. Tunable plasmonic resonances in the hexagonal nanoarrays of. Current research interests include nanophotonics, nanofabrication, optics, nonlinear optics and spectroscopy of plasmonic nanostructures, and applications in biosensing and metamaterials. Metamaterials based label free nanosensor for conformation and a. Plasmonic nanorod metamaterials for biosensing nature. Tunnelinginduced broadband and tunable optical emission from. Kravets and fred schedin and rashid jalil and liam britnell and roman v. While smooth plasmonic films, supporting surface plasmon polaritons, and individual nanostructures, featuring localized surface plasmons, are easy to fabricate and use, the assemblies of nanostructures.
Plasmonic sensors, stemming from the local electromagnetic em field enhancement and the ultrasensitivity of surface plasmon resonance spr. It allows programming their properties by varying the size, shape, and composition of the nanoparticles, as well as the packing order of the assemblies. Plasmonic nanotrench structures with large active surface area for labelfree. Metamaterials with hyperbolic dispersion based on metallic nanorod arrays provide a flexible platform for the design of bio and chem. This property can be exploited to achieve extremely high sensitivity to the changes in environmental.
Figure 9a as a labelfree nanophotonic biosensor to enhance. Typical plasmonic sensing utilizes either the resonance shift due to the local refractive index change upon molecular adsorption refractive index sensor, figure 1a or characteristic light radiation boosted by the strongly enhanced field by the plasmonic resonance e. They are inexpensive to fabricate over large areas 1,2,6. Biosensing with plasmonic nanosensors northwestern scholars. A multiscale approach to modeling plasmonic nanorod. Plasmonic nanorod metamaterials for biosensing nature materials. In this paper, we demonstrate a nanostructure sensor based on hexagonal arrays of annular aperture operating in the nearinfrared wavelength range. Dodson, nguyen thuan dao, lai mun wong, shijie wang, shuzhou li, anh tuan phan, and qihua xiong. Tunnelinginduced broadband and tunable optical emission from plasmonic nanorod metamaterials article pdf available in nanophotonics 92 january 2020 with reads how we measure reads. Metamaterials and metasurfaces for sensor applications mdpi. Extreme sensitivity biosensing platform based on hyperbolic. Plasmonic metamaterials hold a new promise for biosensing with unprecedented sensitivity and specificity.
Tunnelinginduced broadband and tunable optical emission. A receptor green is immobilized inside the metalized woodpile. Tunable plasmonic resonances in the hexagonal nanoarrays. Plasmonic metamaterials for nanochemistry and sensing. Label free plasmonic biosensors rely either on surface plasmon polaritons or on localized surface plasmons on continuous or nanostructured noblemetal surfaces to detect molecularbinding events. Free standing gold nanorod metamaterials were obtained after dissolving the nanoporous alumina template in a mixed solution of 0. Pdf labelfree plasmonic biosensors rely either on surface plasmon polaritons or on localized surface plasmons on continuous or. Also known as lefthanded or negative index materials, veselago theorized that they would exhibit optical properties opposite to those of glass or air. Plasmonic nanorod metamaterials for biosensing, nat. Largescale high aspect ratio aldoped zno nanopillars.