Terahertz plasmonic bessel beamformer

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August undefined, 2024

Web10 Mar 2024 · Reconfigurable terahertz (THz) devices with nonvolatile and multilevel properties are highly desirable in many applications from imaging and high-capacity … WebWe experimentally demonstrate terahertz Bessel beamforming based on the concept of plasmonics. The proposed planar structure is made of concentric metallic grooves with a …

Plasmonic Nanocomposite for Active Dielectric Metasurface Terahertz …

WebWe demonstrate sub-terahertz vortex beam generation using a spiral metal reflector that can be used for both polarizations. A vortex beam is a ring-shaped beam that possesses sub-wavelength null in the center formed by angular phase variation. While the sub-terahertz vortex beams have gained increasing attention for a wide range of applications in sensing … Web2 Mar 2024 · Abstract. Terahertz radiation with a Bessel beam profile is demonstrated experimentally from a two-color laser filament in air, which is induced by tailored femtosecond laser pulses with an axicon. The temporal and spatial distributions of Bessel rings of the terahertz radiation are retrieved after being collected in the far field. providence bellevue wa

‪Yasuaki Monnai‬ - ‪Google Scholar‬

WebTerahertz Beamforming Based on Plasmonic Waveguide Scattering. We demonstrate free-space focusing of terahertz (THz) radiation by scattering plasmonic surface-waves into … WebTerahertz surface plasmon waveguide based on a one-dimensional array of silicon pillars Gagan Kumar et al 2013 New J. Phys. 15 085031 Open abstract View article PDF Open access Optimal plasmonic focusing on a metal disc under radially polarized terahertz illumination Stefan Waselikowski et al 2013 New J. Phys. 15 075005 WebHere, taking cues from some recent advancements in the field, we propose innovative architectures capable of generating Bessel beams at terahertz frequencies and featuring … providence benefits portal

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Web18 Oct 2011 · We investigate the generation of THz pulses when arrays of silver nanoparticles are irradiated by femtosecond laser pulses, providing the first reproducible experimental evidence in support of recent theoretical predictions of such an effect. We assess our results in the context of a model where photoelectrons are produced by … WebWe experimentally demonstrate terahertz Bessel beamforming based on the concept of plasmonics. The proposed planar structure is made of concentric metallic grooves with a subwavelength spacing that couple to a point source to create tightly confined surface waves or spoof surface plasmon polaritons. restaurant kitchen backgroundWeb8 Jul 2024 · We demonstrate terahertz detection sensitivities down to 3 times the quantum-limit at room temperature. With a versatile design capable of broadband operation, over a 0.1-5 THz bandwidth, this plasmonic detector has broad applicability to astronomy, cosmology, and atmospheric studies, as well as gas sensing. providence benedictine

"Web1 Jan 2024 · Among all plasmonic biodevices, the terahertz (THz) plasmonic structures with the operating bandwidth between the world of transistors and lasers (0.1 THz < f < 10 THz) have received significant attention recently. It should be underlined that the plasmonic terminology has been used to distinguish the reviewed metallic metamaterials and … " - Terahertz plasmonic bessel beamformer

Terahertz plasmonic bessel beamformer

Bessel Terahertz Pulses from Superluminal Laser Plasma Filaments

Web7 Sep 2024 · Monnai Y, Jahn D, Withayachumnankul W, Koch M, Shinoda H (2015) Terahertz plasmonic Bessel beamformer. Appl Phys Lett 106:021101. Google Scholar Beaskoetxea U, Maci S, Navarro-Cia M, Beruete M (2024) 3D-printed 96 GHz bull’s-eye antenna with off-axis beaming. IEEE Trans Antennas Propag 65:17–25. Google Scholar Web18 Aug 2024 · Terahertz Technology Innovation Research Institute and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No. 516 JunGong Road, 200093 Shanghai, China ... Near-field vortices (that are surface plasmonic vortices) generated by metal-based structures enable an unprecedented capability in …

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WebWe propose a leaky-wave antenna to generate circularly polarized highly directional terahertz beam using metamaterial scatters. A microstrip line is loaded with a series of … WebHe has been a Visiting Researcher at Osaka University since 2024. Dr. Withayachumnankul is currently a Professor with the University of Adelaide, and the Leader of the Terahertz Engineering Laboratory. Currently, he serves as a Track Editor of the IEEE Transactions on Terahertz Science and Technology. Between 2024--2024, he was the Chair of the ...

WebWe experimentally demonstrate terahertz Bessel beamforming based on the concept of plasmonics. The proposed planar structure is made of concentric metallic grooves with a … Web16 Oct 2015 · Bessel vortex beams with topological charges of l=±1 and l=±2 were produced in the terahertz spectral range from a free electron laser Gaussian beam (λ=141 μm) …

WebThe power and information carried in each ring of the Bessel beam and the central spot size are the same (with a much greater intensity within the central spot than any of the rings). … Web1 Jun 2024 · Focusing of concentric piecewise vector Bessel-Gaussian beam. NASA Astrophysics Data System (ADS) Li, Jinsong; Fang, Ying; Zhou, Shenghua; Ye, Youxiang. 2010-12-01. The focusing p

WebA wide-angle and TE/TM polarization-insensitive terahertz metamaterial near-perfect absorber based on a multi-layer plasmonic structure ... has been presented in the terahertz band with extremely high absorptance. A flexible design method is proposed, which could create absorbers with four independent functions as follows. First, selective ...

WebWe experimentally demonstrate terahertz Bessel beamforming based on the concept of plasmonics. The proposed planar structure is made of concentric metallic grooves with a subwavelength spacing that couple to a point source to create tightly confined surface waves or spoof surface plasmon polaritons. restaurant kitchen appliances for saleWebFocus free terahertz reflection imaging and tomography with Bessel beams S.F. Busch, M. Scheller, G.E. Town, and M. Koch J. Infrared Milli Terahz Waves 36, 318 (2015) 224) Contactless water status measurements on plants at 35 GHz R. Gente, A. Rehn, M. Koch J. Infrared Milli Terahz Waves, 36, 312 (2015) 223) Terahertz Plasmonic Bessel Beamformer providence benedictine mount angel oregonWebWe experimentally demonstrate terahertz Bessel beamforming based on the concept of plasmonics. The proposed planar structure is made of concentric metallic grooves with a subwavelength spacing that couple to a point source to create tightly confined surface waves or spoof surface plasmon polaritons. Concentric scatterers periodically … providence benedictine nursingWeb12 Jan 2015 · We experimentally demonstrate terahertz Bessel beamforming based on the concept of plasmonics. The proposed planar structure is made of concentric metallic grooves with a subwavelength … providence benedictine mt angelWeb1 Jun 2024 · An ultrathin terahertz quarter-wave plate using planar babinet-inverted metasurface. PubMed. Wang, Dacheng; Gu, Yinghong; Gong, Yandong; Qiu, Cheng-Wei; Hong, Minghui ... restaurant kitchen cleaning checklist excelWeb2 Mar 2024 · Metal-hole-supported terahertz (THz) waves through the structure of a metal-wire-woven hole array (MWW-HA) present high-frequency-passed transmittance spectra of one plasmonic metamaterial with artificial plasmonic frequencies, which are inversely proportional to metal-hole widths. For the transmitt … providence bellingham waWebWe demonstrate sub-terahertz vortex beam generation using a spiral metal reflector that can be used for both polarizations. A vortex beam is a ring-shaped beam that possesses … providence best brunch