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We demonstrate loading by laser ablation of $^{88}$Sr$^+$ ions into a mm-scale surface-electrode ion trap. The laser used for ablation is a pulsed, frequency-tripled Nd:YAG with pulse energies of 1-10 mJ and durations of 3-5 ns. An…

We report a new technique for fabricating metallic electrodes on insulating substrates with separations on the 1 nm scale. The fabrication technique, which combines lithographic and electrochemical methods, provides atomic resolution…

Materials Science · Physics 2009-10-31 A. F. Morpurgo , D. B. Robinson , C. M. Marcus

Laser ablation in liquid (LAL) is important technique used for formation of nanoparticles (NP). The LAL processes cover logarithmically wide range of spatiotemporal scales and is not fully understood. The NP produced by LAL are rather…

Mesoscale and Nanoscale Physics · Physics 2018-11-30 V. A. Khokhlov , N. A. Inogamov , V. V. Zhakhovsky , Yu. V. Petrov

The yield of electrons generated by gold nanoparticles due to irradiation by fast charged projectiles is estimated. The results of calculations are compared to those obtained for pure water medium. It is demonstrated that a significant…

Atomic and Molecular Clusters · Physics 2016-10-07 Alexey V. Verkhovtsev , Andrei V. Korol , Andrey V. Solov'yov

Accurate detection and characterization of nanoparticles within confined spaces is crucial for applications ranging from nanofluidics to biotechnology. We present a novel approach that combines interferometric scattering (iSCAT) detection…

We have conceived, built, and operated a cryogenic Penning trap with an electrically conducting yet optically transparent solid electrode. The trap, dedicated to spectroscopy and imaging of confined particles under large solid angles is of…

Atomic Physics · Physics 2018-02-12 M. Wiesel , G. Birkl , M. S. Ebrahimi , A. Martin , W. Quint , N. Stallkamp , M. Vogel

For nanoscale electrical characterization and device fabrication it is often desirable to fabricate planar metal electrodes separated by large aspect ratio gaps with interelectrode distances well below 100 nm. We demonstrate a self-aligned…

Materials Science · Physics 2009-05-21 A. Fursina , S. Lee , R. G. S. Sofin , I. V. Shvets , D. Natelson

Despite the progress in building sophisticated microfabricated ion traps, Paul traps employing needle electrodes retain their significance due to the simplicity of fabrication while producing high-quality systems suitable for quantum…

Instrumentation and Detectors · Physics 2023-03-29 Nikhil Kotibhaskar , Noah Greenberg , Sainath Motlakunta , Chung-You Shih , Rajibul Islam

When an ionic liquid adsorbs onto a porous electrode, its ionic arrangement is deeply modified due to a screening of the Coulombic interactions by the metallic surface and by the confinement imposed upon it by the electrode's morphology. In…

Recently, nanolaminated ternary carbides have attracted immense interest due to the concomitant presence of both ceramic and metallic properties. Here, we grow nanolaminate Ti3AlC2 thin films by pulsed laser deposition on c-axis-oriented…

Sub-wavelength laser induced periodic surface structures (LIPSS-Sticks) created by ultrashort pulsed laser irradiation on the surface of titanium are used for the first time to template the electrochemical growth of titanium dioxide…

Applied Physics · Physics 2020-08-04 Rakesh Arul , Junzhe Dong , M. Cather Simpson , Wei Gao

The microlens is a key enabling technology in optoelectronics, permitting light to be efficiently coupled to and from devices such as image sensors and light-emitting diodes. Their ubiquitous nature motivates the development of new…

Materials Science · Physics 2015-05-07 Yaping Dan , Kaixiang Chen , Kenneth B. Crozier

A simple and highly reproducible technique is demonstrated for the fabrication of metallic electrodes with nanometer separation. Commercially available bare gold colloidal nanoparticles are first trapped between prefabricated…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Saiful I. Khondaker , Zhen Yao

On-chip optical trapping systems allow for high scalability and lower the barrier to access. Systems capable of trapping multiple particles typically come with high cost and complexity. Here we present a technique for making parabolic…

Plasmonic resonances in metallic nanoparticles are exploited to create efficient optical filtering functions. A Finite Element Method is used to model metallic nanoparticles gratings. The accuracy of this method is shown by comparing…

The shape of metal nanoparticles embedded in dielectric matrices influences the optical properties of the composite material. Swift heavy ion irradiation can induce a controllable shape transformation in gold and other metals embedded in…

Materials Science · Physics 2022-04-22 Aleksi A. Leino , Ville E. Jantunen , Flyura Djurabekova

We developed a process to fabricate nanoscale metallic gate electrodes on scanning probe cantilevers, including on the irregular surface of protruding cantilever tips. The process includes a floating-layer technique to coat the cantilevers…

Instrumentation and Detectors · Physics 2022-09-26 Luca Forrer , Aurèle Kamber , Armin Knoll , Martino Poggio , Floris Braakman

Advanced material composite of nanocarbons and metal-based materials provides a synergistic effect to obtain excellent electrochemical charge-storage performance and other properties. Herein, 3D porous carbon-metal oxynitride nanocomposites…

We investigated the localized electronic properties of nanoporous gold films by using an ultra-high vacuum scanning tunneling microscope at low temperature (4.2 K). Second derivative scanning tunneling spectroscopy shows the plasmon peaks…

Materials Science · Physics 2014-06-10 H. W. Liu , R. Nishitani , T. Fujita , W. Li , L. Zhang , X. Y. Lang , P. Richard , K. S. Nakayama , X. Chen , M. W. Chen , Q. K. Xue

The fabrication of functional micro- and nano-electronic devices requires the deposition of high-quality materials of different electronic material classes, such as conductors, semiconductors and insulators. To establish…

Materials Science · Physics 2026-01-23 Mirco Nydegger , Rebecca A. Gallivan , Arthur Barras , Henning Galinski , Ralph Spolenak