Search Results - "Adam, A. J. L."

Accurate Feeding of Nanoantenna by Singular Optics for Nanoscale Translational and Rotational Displacement Sensing by Xi, Zheng, Wei, Lei, Adam, A J L, Urbach, H P, Du, Luping

“…Identifying subwavelength objects and displacements is of crucial importance in optical nanometrology. We show in this Letter that nanoantennas with…”
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Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: mapping of electric-field-, magnetic-field-, and Poynting vectors by Seo, M A, Adam, A J L, Kang, J H, Lee, J W, Jeoung, S C, Park, Q H, Planken, P C M, Kim, D S

“…We present 2D measurements of the full THz electric field behind a sample consisting of multiple slits in a metal foil. Our measurements, which have a…”
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Advanced terahertz electric near-field measurements at sub-wavelength diameter metallic apertures by Adam, A J L, Brok, J M, Seo, M A, Ahn, K J, Kim, D S, Kang, J H, Park, Q H, Nagel, M, Planken, P C M

“…Using terahertz-light excitation, we have measured with sub-wavelength spatial, and sub-cycle temporal resolution the time- and frequency-dependent…”
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Near field imaging of terahertz focusing onto rectangular apertures by Seo, M A, Adam, A J L, Kang, J H, Lee, J W, Ahn, K J, Park, Q H, Planken, P C M, Kim, D S

“…We performed terahertz near-field experiments on single rectangular holes with various lengths grown on an electro-optic crystal substrate with lambda/100…”
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Terahertz near-field vectorial imaging of subwavelength apertures and aperture arrays by Knab, J R, Adam, A J L, Nagel, M, Shaner, E, Seo, M A, Kim, D S, Planken, P C M

“…We present measurements of the complete terahertz (THz) electric near-field distribution, E(x), E(y) and E(z), in both the time- and frequency-domains, for…”
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Influence of the dielectric substrate on the terahertz electric near-field of a hole in a metal by Guestin, L, Adam, A J L, Knab, J R, Nagel, M, Planken, P C M

“…We have studied theoretically and experimentally the influence of a dielectric substrate on the frequency-dependent terahertz electric near-field of a small…”
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Broadband active tuning of unidirectional scattering from nanoantenna using combined radially and azimuthally polarized beams by Xi, Z, Wei, L, Adam, A J L, Urbach, H P

“…We propose an approach to actively tune the scattering pattern of a Mie-type spherical antenna. The scheme is based on separate control over the induced…”
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Electromagnetic spin-orbit interactions via scattering of subwavelength apertures by Vuong, L T, Adam, A J L, Brok, J M, Planken, P C M, Urbach, H P

“…Circularly polarized electric fields incident on subwavelength apertures produce near-field phase singularities with phase vorticity +/-1 depending on the…”
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Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer by Gao, J. R., Hovenier, J. N., Yang, Z. Q., Baselmans, J. J. A., Baryshev, A., Hajenius, M., Klapwijk, T. M., Adam, A. J. L., Klaassen, T. O., Williams, B. S., Kumar, S., Hu, Q., Reno, J. L.

“…We report the first demonstration of an all solid-state heterodyne receiver that can be used for high-resolution spectroscopy above 2 THz suitable for…”
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Terahertz near-field spectroscopy of filled subwavelength sized apertures in thin metal films by Knab, J R, Adam, A J L, Shaner, E, Starmans, H J A J, Planken, P C M

“…We have measured terahertz near-field spectra of cesium iodide crystals as small as ~10 μm in diameter, which were deposited on single, sub-wavelength-sized…”
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Terahertz near-field microspectroscopy by Knab, J. R., Adam, A. J. L., Chakkittakandy, R., Planken, P. C. M.

“…Using near-field, terahertz time-domain spectroscopy (THz-TDS), we investigate how the addition of a dielectric material into a subwavelength-diameter,…”
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Antenna model for wire lasers by Orlova, E E, Hovenier, J N, Klaassen, T O, Kasalynas, I, Adam, A J L, Gao, J R, Klapwijk, T M, Williams, B S, Kumar, S, Hu, Q, Reno, J L

“…An antenna model is proposed for long (L >> A) lasers with subwavelength cross sections (wire lasers). It is shown that the far-field pattern of the wire…”
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Phase locking and spectral linewidth of a two-mode terahertz quantum cascade laser by Baryshev, A., Hovenier, J. N., Adam, A. J. L., Kašalynas, I., Gao, J. R., Klaassen, T. O., Williams, B. S., Kumar, S., Hu, Q., Reno, J. L.

“…We have studied the phase locking and spectral linewidth of an ∼ 2.7 THz quantum cascade laser by mixing its two lateral lasing modes. The beat signal at about…”
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Optical and terahertz near-field studies of surface plasmons in subwavelength metallic slits by Ahn, K J, Lee, K G, Kihm, H W, Seo, M A, Adam, A J L, Planken, P C M, Kim, D S

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Broadband directional scattering through a phase difference acquired in composite nanoparticles by Kotte, T. P. S., Adam, A. J. L., Zuidwijk, T., Heerkens, C. T. H., Xu, M., Urbach, H. P.

“…We study the broadband scattering of light by composite nanoparticles through the Born approximation, FEM simulations, and measurements. The particles consist…”
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Accurate feeding of nano antenna by polarization singularities for lateral and rotational displacement sensing by Xi, Zheng, Wei, Lei, Adam, A. J. L, Urbach, H. P

“…Phys. Rev. Lett. 117, 113903 (2016) Addressing subwavelength object and displacement is crucial in optical nanometrology. We show in this Letter that nano…”
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Broadband active tuning of unidirectional scattering from nanoantenna using combined radially and azimuthally polarized beams by Xi, Zheng, Wei, Lei, Adam, A. J. L, Urbach, H. P

“…We propose an approach to actively tune the scattering pattern of a Mie-type spherical antenna. The scheme is based on separate control over the induced…”
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Spatial Mode Selective Waveguide with Hyperbolic Cladding by Tang, Y, Xi, Z, Xu, M, Bäumer, S, Adam, A. J. L, Urbach, H. P

“…Opt. Lett. 41, 4285-4288 (2016) Hyperbolic Meta-Materials~(HMMs) are anisotropic materials with permittivity tensor that has both positive and negative…”
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Beam patterns of terahertz quantum cascade lasers with subwavelength cavity dimensions by Adam, A. J. L., Kašalynas, I., Hovenier, J. N., Klaassen, T. O., Gao, J. R., Orlova, E. E., Williams, B. S., Kumar, S., Hu, Q., Reno, J. L.

“…The need to reach single-mode lasing and minimize at the same time the electrical dissipation of cryogenically operated terahertz quantum cascade lasers may…”
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Influence of the dielectric substrate on the terahertz electric near-field of a hole in a metal by Guestin, L, Planken, P C M, Adam, A J L

“…We have studied theoretically and experimentally the influence of a dielectric substrate on the frequency-dependent terahertz electric near-field of a small…”
Get full text