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Optical tweezers have become a powerful tool for measuring parameters of microscale and nanoscale local environments. Motion of particles within optical tweezer traps established itself as a probe for local viscosity, temperature as well as…

We review our recent modelling work of carbon nanotubes as potential candidates for heat dissipation in microelectronics cooling. In the first part, we analyze the impact of nanotube defects on their thermal transport properties. In the…

Mesoscale and Nanoscale Physics · Physics 2013-09-27 Alejandro Pérez Paz , Juan María García-Lastra , Troels Markussen , Kristian Sommer Thygesen , Angel Rubio

Carbon nanotubes with their outstanding electrical and mechanical properties are suggested as interconnect material of the future and as switching devices, which could outperform silicon devices. In this paper we will introduce nanotubes,…

Materials Science · Physics 2007-05-23 F. Kreupl , G. S. Duesberg , A. P. Graham , M. Liebau , E. Unger , R. Seidel , W. Pamler , W. Hoenlein

We develop an optical tweezers system using a single dual-mode optical fiber where mesoscopic absorbing particles can be trapped in three dimensions and manipulated employing photophoretic forces. We generate a superposition of fundamental…

Instrumentation and Detectors · Physics 2017-11-22 Souvik Sil , Tushar Kanti Saha , Avinash Kumar , Sudipta K. Bera , Ayan Banerjee

The transversely confined propagating light modes of a nano-photonic optical waveguide or nanofiber can mediate effectively infinite-range forces. We show that for a linear chain of particles trapped within the waveguide's evanescent field,…

Quantum Physics · Physics 2021-05-10 Daniela Holzmann , Matthias Sonnleitner , Helmut Ritsch

We experimentally demonstrate efficient interfacing of a large number of atoms to an optical nanofiber using an optical lattice with tunable spacing ($0.88-1.5~\mu$m) projected onto the nanofiber. The lattice beam and reflections from the…

Quantum Physics · Physics 2026-01-14 Hyok Sang Han , Ahreum Lee , Sarthak Subhankar , Fredrik K. Fatemi , S. L. Rolston

New systems are required for optical limiting against broadband laser pulses. We demonstrate that the association of non-linear scattering from single-wall carbon nanotubes (SWNT) and multiphoton absorption (MPA) from organic chromophores…

Other Condensed Matter · Physics 2016-08-16 Nicolas Izard , Cécilia Ménard , Didier Riehl , Eric Doris , Charles Mioskowski , Eric Anglaret

We experimentally demonstrate stable trapping and controlled manipulation of silica microspheres in a structured optical beam consisting of a dark focus surrounded by light in all directions - the so-called Dark Focus Tweezer. Results from…

Manipulating micro-scale object plays paramount roles in a wide range of fundamental researches and applications. At micro-scale, various methods have been developed in the past decades, including optical, electric, magnetic, aerodynamic…

The ability to create dynamic, tailored optical potentials has become important across fields ranging from biology to quantum science. We demonstrate a method for the creation of arbitrary optical tweezer potentials using the broadband…

Optics · Physics 2020-07-16 A. T. M. Anishur Rahman , P. F. Barker

As a complementary tool to nanofluidics, biomolecular based transport is envisioned for nanotechnological devices. We report a new method for guiding microtubule shuttles on multi-walled carbon nanotube tracks, aligned by dielectrophoresis…

The evanescent field outside an optical nanofiber (ONF) can create optical traps for neutral atoms. We present a non-destructive method to characterize such trapping potentials. An off-resonance linearly polarized probe beam that propagates…

Quantum Physics · Physics 2017-06-09 Pablo Solano , Fredrik K. Fatemi , Luis A. Orozco , S. L. Rolston

Single-particle tracking and optical tweezers are powerful techniques for studying diverse processes at the microscopic scale. The stochastic behavior of a microscopically observable particle contains information about its interaction with…

Soft Condensed Matter · Physics 2022-04-15 Jeonghyeon Kim , Olivier J. F. Martin

The behavior of a nanodevice based upon double-walled carbon nanotube oscillators driven by periodically applied thermal gradients (7 and 17 K/nm) is investigated by numerical calculations and classical molecular dynamics simulations. Our…

Mesoscale and Nanoscale Physics · Physics 2010-01-06 V. R. Coluci , V. S. Timóteo , D. S. Galvão

As science progresses at the nanoscopic level, it becomes more and more important to comprehend the interactions taking place at the nanoscale, where optical near-fields play a key role. Their phenomenology differs significantly from the…

Optics · Physics 2022-04-01 Mareen Glaeske , Patryk Kusch , Niclas Sven Mueller , Antonio Setaro

Holographic optical traps use the forces exerted by computer-generated holograms to trap, move and otherwise transform mesoscopically textured materials. This article introduces methods for optimizing holographic optical traps' efficiency…

Soft Condensed Matter · Physics 2009-11-11 Marco Polin , Kosta Ladavac , Sang-Hyuk Lee , Yael Roichman , David G. Grier

Chiral optical terahertz (THz) devices have significant technological implications for telecommunications, spectroscopy, and sensing. Engineering tunable, broadband, and cost-effective THz chiral materials has long been recognized as a…

A double-helix optical trapping potential for cold atoms can be straightforwardly created inside the evanescent field of an optical nanofiber. It suffices to send three circularly polarized light fields through the nanofiber; two…

Atomic Physics · Physics 2012-09-27 D. Reitz , A. Rauschenbeutel

In the last two decades, optical vortices carried by twisted light wavefronts have attracted a great deal of interest, providing not only new physical insights into light-matter interactions, but also a transformative platform for boosting…

Optics · Physics 2021-11-05 Chenhao Li , Stefan A. Maier , Haoran Ren

The charge transport properties of single superconducting tin nanowires, encapsulated by multiwalled carbon nanotubes have been investigated by multi-probe measurements. The multiwalled carbon nanotube protects the tin nanowire from…