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Ordering nanoparticles into a desired super-structure is often crucial for their technological applications. We use molecular dynamics simulations to study the assembly of nanoparticles in a polymer brush randomly grafted to a planar…

软凝聚态物质 · 物理学 2017-12-11 Shengfeng Cheng , Mark J. Stevens , Gary S. Grest

A nanofabrication process for realizing optical nanoantennas carved from a single-crystal gold plate is presented in this communication. The method relies on synthesizing two-dimensional micron-size gold crystals followed by the dry etching…

An important goal of self-assembly is to achieve a preprogrammed structure with high fidelity. Here, we control the valence of DNA-functionalized emulsions to make linear and branched model polymers, or `colloidomers'. The distribution of…

The integration of light and materials technology is key to the creation of innovative sensing technologies. Sensing of electric and magnetic fields, and temperature with high spatio-temporal resolution is a critical task for the…

We propose a method of trapping atoms in arrays near to the surface of a composite nanophotonic device with optimal coupling to a single cavity mode. The device, comprised of a nanofiber mounted on a grating, allows the formation of…

量子物理 · 物理学 2017-06-28 Mark Sadgrove , Kali P. Nayak

Efficient readout of nitrogen-vacancy (NV) centers in diamond is crucial for various quantum information technologies. However, achieving high-fidelity, single-shot readout at room temperature remains challenging due to limited photon…

光学 · 物理学 2025-03-20 Boaz Lubotzky , Hamza Abudayyeh , Niko Nikolay , Oliver Benson , Ronen Rapaport

A grand challenge of nanoscience is to master the control of structure and properties in order to go beyond present day functionality. The creation of nanostructures via atom manipulation by means of a scanning probe represents one of the…

介观与纳米尺度物理 · 物理学 2012-09-11 R. X. Cao , B. F. Miao , Z. F. Zhong , L. Sun , B. You , W. Zhang , D. Wu , An Hu , S. D. Bader , H. F. Ding

A Laser-stimulated synthesis of large silver nanoaggregates consisting of hundreds to thousands of nanoparticles is investigated. It is shown that the morphology of the synthesized nanostructures can be controlled with light and monitored…

化学物理 · 物理学 2009-11-11 A. K. Popov , R. Tanke , J. Brummer , M. Loth , R. Langlois , A. Wruck , G. Taft , R. Schmitz

Nanocrystalline bulk materials are desirable for many applications as they combine mechanical strength and specific electronic transport properties. Our bottom up approach starts with tailored nanoparticles. Compaction and thermal treatment…

介观与纳米尺度物理 · 物理学 2015-05-20 D. Schwesig , G. Schierning , R. Theissmann , N. Stein , N. Petermann , H. Wiggers , R. Schmechel

We demonstrate a surface lattice resonance (SLR)-based plasmonic nanolaser that leverages bulk production of colloidal nanoparticles and assembly on templates with single particle resolution. SLRs emerge from the hybridization of the…

Optical-based nanothermometry represents a transformative approach for precise temperature measurements at the nanoscale, which finds versatile applications across biology, medicine, and electronics. The assembly of ratiometric fluorescent…

光学 · 物理学 2025-04-01 Mahshid Iraniparast , Nishant Kumar , Igor Sokolov

Molecular electronics and other technologies whose components comprise individual molecules have been pursued for half a century because the molecular scale represents the limit of miniaturisation of objects whose structure is tuneable for…

Gold nanorods grafted with short chain polymers are assembled into controlled open structures using polymer-induced depletion interactions and structurally characterized using small angle x-ray scattering. When the nanorod diameter is…

软凝聚态物质 · 物理学 2018-02-13 Ryan Poling-Skutvik , Jonghun Lee , Suresh Narayanan , Ramanan Krishnamoorti , Jacinta C. Conrad

The fabrication of well-defined, low-dimensional diamondoid-based materials is a promising approach for tailoring diamond properties such as superconductivity. On-surface self-assembly of halogenated diamondoids under ultrahigh vacuum…

Scanning microphotoluminescence is used to characterise the fluorescence from a dye-loaded polymer deposited on a 5 x 5 nanoantenna dipole array. Vertical and horizontal scans show anisotropic emission patterns.

Ready-to-use numerical toolbox for nanodiamond Raman spectra calculation and fit is presented. The developed theoretical approach allows accounting for arbitrary nanoparticle size-distribution and the microscopic line broadening mechanisms…

介观与纳米尺度物理 · 物理学 2025-12-01 Sergei V. Koniakhin , Oleg I. Utesov , Vitaly I. Korepanov , Andrey G. Yashenkin

Engineered nanoparticles made from noble metals, rare-earth oxides or semiconductors are emerging as the central constituents of future nanotech developments. In this review, a survey of the complexing strategies between nanoparticles and…

材料科学 · 物理学 2011-08-25 J. -P. Chapel , J. -F. Berret

The development of sixth-generation (6G) wireless communication systems demands innovative solutions to address challenges in the deployment of a large number of base stations and the detection of multi-band signals. Quantum technology,…

信号处理 · 电气工程与系统科学 2024-10-01 Qunsong Zeng , Jiahua Zhang , Madhav Gupta , Zhiqin Chu , Kaibin Huang

Fluorescent nanodiamonds containing negatively-charged nitrogen-vacancy (NV$^-$) centers are promising for a wide range of applications, such as for sensing, as fluorescence biomarkers, or to hyperpolarize nuclear spins. NV$^-$ centers are…

The controlled self-assembly of thiol stabilized gold nanocrystals in a mediating solvent and confined within mesoporous alumina was probed in situ with small angle x-ray scattering. The evolution of the self-assembly process was controlled…

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