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Molten metallic nanoparticles have recently been used to construct graphene nanostructures with crystallographic edges. The mechanism by which this happens, however, remains unclear. Here, we present a simple model that explains how a…

Mesoscale and Nanoscale Physics · Physics 2010-08-16 Sujit S. Datta

The ability to control scattering directionality of nanoparticles is in high demand for many nanophotonic applications. One of the challenges is to design nanoparticles producing pure high-order multipole scattering (e.g., octopole,…

We demonstrate a method by which few-layer graphene samples can be etched along crystallographic axes by thermally activated metallic nanoparticles. The technique results in long (>1 micron) crystallographic edges etched through to the…

Materials Science · Physics 2009-05-08 Sujit S. Datta , Douglas R. Strachan , Samuel M. Khamis , A. T. Charlie Johnson

A powerful and flexible method of 3D nano-printing, based on focusing charged aerosol, has been developed. The self-consistent electric field configuration, created with a holey floating mask and used as the scaffold for printing…

Applied Physics · Physics 2018-12-14 Wooik Jung , Yoon-ho Jung , Peter V. Pikhitsa , Jooyeon Shin , Kijoon Bang , Jicheng Feng , Mansoo Choi

Electrochemical methods have recently become an interesting tool for fabricating and characterizing nanostructures at room temperature. Simplicity, low cost and reversibility are some of the advantages of this technique that allows to work…

Mesoscale and Nanoscale Physics · Physics 2009-06-17 M. R. Calvo , A. I. Mares , V. Climent , J. M. van Ruitenbeek , C. Untiedt

We present a design and a top-down fabrication method for realizing diamond nanowires in both bulk single crystal and polycrystalline diamond. Numerical modeling was used to study coupling between a Nitrogen Vacancy (NV) color center and…

In the construction of High-Luminosity Large Hadron Collider (HL-LHC) and Future Circular Collider (FCC) experiments, 3D pixel sensors have become indispensable components due to their superior radiation hardness, fast response, and low…

Instrumentation and Detectors · Physics 2025-10-14 Huimin Ji , Zhihua Li , Wenzheng Cheng , Zheng Li , Kai Huang , Jing Wen , Song Liu , Manwen Liu , Jun Luo

Precise control of particle positioning is desirable in many optical propulsion and sorting applications. Here, we develop an integrated platform for particle manipulation consisting of a combined optical nanofiber and optical tweezers…

Structuring Si in arrays of vertical high aspect ratio pillars, ranging from nanoscale to macroscale feature dimensions, is essential for producing functional interfaces for many applications. Arrays of silicon 3D nanostructures are needed…

Applied Physics · Physics 2022-09-29 Z. Shi , K. Jefimovs , M. Stampanoni , L. Romano

Copper nanopowder preparation and its X-Ray diffraction studies are reported in this paper. Electrolytic cathode deposition method is simple and cheapest process for its preparation. Copper nanopowder has been prepared from aqueous copper…

General Physics · Physics 2010-04-01 T. Theivasanthi , M. Alagar

Porous silicon (p-Si), prepared by two routes (metal induced etching (MIE) and laser induced etching (LIE)) have been studied by comparing the observed surface morphologies using SEM. A uniformly distributed smaller (submicron sized) pores…

Mesoscale and Nanoscale Physics · Physics 2014-03-26 Shailendra K. Saxena , Vivek Kumar , Hari M. Rai , Gayatri Sahu , Ravi K. Late , Kapil Saxena , A. K. Shukla , Pankaj R. Sagdeo , Rajesh Kumar

The integration and parallelization of nanopore sensors are essential for improving the throughput of nanopore measurements. Solid-state nanopores traditionally have been used in isolation, which prevents the realization of their full…

Mesoscale and Nanoscale Physics · Physics 2024-09-23 Peter D. Jones , Michael Mierzejewski

Direct laser writing of surface waveguides with ultrashort pulses is a crucial achievement towards all-laser manufacturing of photonic integrated circuits sensitive to their environment. In this Letter, few-cycle laser pulses (with a sub-10…

With the introduction of micro and nanosensors and devices, the need for pure metal and ceramic powders have risen. Spherical pure metal powders and their alloys are vital raw materials for near-net-shape fabrication via powder-metallurgy…

Applied Physics · Physics 2021-12-07 Arash Rahmati , Amir Abdullah , Kaveh Esmailnia

In the frame of the development of thin crystalline silicon solar cell technologies, surface nanopatterning of silicon is gaining importance. Its impact on the material quality is, however, not yet fully controlled.We investigate here the…

Materials Science · Physics 2015-07-29 Islam Abdo , Christos Trompoukis , Loic Tous , Valerie Depauw , Rafik Guindi , Ivan Gordon , Ounsi El Daif

Freestanding Silicon nitride (SiN) devices are central to the field of nanomechanical resonators and for other technology applications such as transmission electron imaging and nanopore bioassays. The nanofabrication techniques used for…

Optics · Physics 2023-03-22 Roghayeh Nikbakht , Xitong Xie , Arnaud Weck , Raphael St-Gelais

Solid-state nanopore and nanopipette sensors are powerful devices for the detection, quantification and structural analysis of biopolymers such as DNA and proteins, especially in carrier-enhanced resistive-pulse sensing. However, hundreds…

Mesoscale and Nanoscale Physics · Physics 2025-10-14 Cengiz J. Khan , Oliver J. Irving , Rand A. Al-Waqfi , Giorgio Ferrari , Tim Albrecht

Electrokinetic force has been the major choice for driving the translocation of molecules through a nanopore. However, the use of this approach is limited by an uncontrollable translocation speed, resulting in non-uniform conductance…

Applied Physics · Physics 2024-04-22 Jianxin Yang , Tianle Pan , Zhenming Xie , Wu Yuan , Ho-Pui Ho

Non-linear absorption phenomena induced by controlled irradiation with a femtosecond laser beam can be used to tailor materials properties within the bulk of substrates. One of the most successful applications of this technique is the…

Integration of complex photonic structures onto optical fiber facets enables powerful platforms with unprecedented optical functionalities. Conventional nanofabrication technologies, however, do not permit viable integration of complex…