English
Related papers

Related papers: Midinfrared Third Harmonic Generation from Macrosc…

200 papers

Nanometer thin single-walled carbon nanotube (CNT) films collected from the aerosol chemical deposition reactors have gathered attention for their promising applications. Densification of these pristine films provides an important way to…

The authors measured the transport properties of single-walled carbon nanotube (SWCNT) films in the microwave frequency range from 10 MHz to 30 GHz by using the Corbino reflection technique from temperatures of 20-400 K. Based on the real…

Materials Science · Physics 2009-09-14 Hua Xu , Liangbing Hu , Steven M. Anlage , George Gruner

Single-walled carbon nanotubes (SWNTs) are typically long (>100 nm) and have been well established as novel quasi one-dimensional systems with interesting electrical, mechanical, and optical properties. Here, quasi zero-dimensional SWNTs…

Materials Science · Physics 2008-04-30 Xiaoming Sun , Sasa Zaric , Dan Daranciang , Kevin Welsher , Yuerui Lu , Xiaolin Li , Hongjie Dai

We present a novel floating catalyst synthesis route for individual, i.e. non-bundled, small diameter single-walled carbon nanotubes (SWCNTs) with a narrow chiral angle distribution peaking at high chiralities near the armchair species. An…

A simple method combining photolithography and shadow (or angle) evaporation is developed to fabricate single-walled carbon nanotube (SWCNT) devices with tube lengths L~10-50 nm between metal contacts. Large numbers of such short devices…

Materials Science · Physics 2009-11-10 Ali Javey , Pengfei Qi , Qian Wang , Hongjie Dai

The recent development of efficient chirality sorting techniques has opened the way to the use of single-walled carbon nanotubes (SWCNTs) in a plethora of nanoelectronic, photovoltaic, and optoelectronic applications. However, to understand…

Mesoscale and Nanoscale Physics · Physics 2019-12-25 María Rosa Preciado-Rivas , Victor Alexander Torres-Sánchez , Duncan J. Mowbray

The determination of the optical spectrum of single-wall carbon nanotubes (SWCNTs) is essential for the development of opto-electronic components and sensors with application in many fields. Real SWCNTs are finite, but almost all the…

Mesoscale and Nanoscale Physics · Physics 2017-12-14 Jaime Silva , Micael J T Oliveira , Senentxu Lanceros-Mendez , Fernando Nogueira

We present a combined experimental and theoretical study of enhanced third-harmonic generation (THG) in silicon nitride metasurfaces. These structures exhibit strong resonant nonlinear responses, enabling up to two orders of magnitude…

We found a giant Seebeck effect in semiconducting single-wall carbon nanotube (SWCNT) films, which exhibited a performance comparable to that of commercial Bi2Te3 alloys. Carrier doping of semiconducting SWCNT films further improved the…

Mesoscale and Nanoscale Physics · Physics 2014-01-30 Yusuke Nakai , Kazuya Honda , Kazuhiro Yanagi , Hiromichi Kataura , Teppei Kato , Takahiro Yamamoto , Yutaka Maniwa

Using a hydrodynamic approach we examine bulk- and surface-induced second and third harmonic generation from semiconductor nanowire gratings having a resonant nonlinearity in the absorption region. We demonstrate resonant, broadband and…

Even though ultrasonication is considered to be an effective method to disperse carbon nanotubes (CNTs), its devastating effects on the nanotubes are often neglected. Here, even mild ultrasonication is found to rapidly extract the inner…

Mesoscale and Nanoscale Physics · Physics 2021-09-23 Maksiem Erkens , Sofie Cambré , Emmanuel Flahaut , Frédéric Fossard , Annick Loiseau , Wim Wenseleers

The nonocomposites on the base of long (5-10 $\mu$m, ${o}$-MWCNTs) and short (2 $\mu$m, ${m}$-MWCNTs) multi-walled carbon nanotubes (MWCNTs) hosted by nematic 5CB were investigated in details by means of polarizing microscopy, studies of…

Mesoscale and Nanoscale Physics · Physics 2012-01-10 V. V. Ponevchinsky , M. S. Soskin , A. I. Goncharuk , N. I. Lebovka , L. N. Lisetski , S. V. Naydenov

We report on coupling between semiconducting single-wall carbon nanotubes (s-SWNT) photoluminescence and silicon microring resonators. Polyfluorene extracted s-SWNT deposited on such resonators exhibit sharp emission peaks, due to…

Optics · Physics 2015-08-06 Adrien Noury , Xavier Le Roux , Laurent Vivien , Nicolas Izard

We investigate a disordered single-walled carbon nanotube (SWCNT) in an effective medium super cell approximation (EMSCA). First type of disorder that we consider is the presence of vacancies. Our results show that the vacancies induce some…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Rostam Moradian

The electronic properties of as-prepared and purified unoriented single-walled carbon nanotube films were studied by transmission measurements over a broad frequency range (far-infrared up to visible) as a function of temperature (15 K -…

Mesoscale and Nanoscale Physics · Physics 2018-02-02 K. Thirunavukkuarasu , F. Hennrich , K. Kamarás , C. A. Kuntscher

By using femtosecond laser pulses at a wavelength range from 720 to 780 nm, we have observed absorptive and refractive nonlinearities in a film of multi-walled carbon nanotubes grown mainly along the direction perpendicular to the surface…

Materials Science · Physics 2009-11-10 H. I. Elim , W. Ji , G. H. Ma , K. Y. Lim , C. H. Sow , C. H. A. Huan

We present the design, fabrication and characterization of cubic (3C) silicon carbide microdisk resonators with high quality factor modes at visible and near infrared wavelengths (600 - 950 nm). Whispering gallery modes with quality factors…

Aluminum nitride and silicon nitride have recently emerged as important nonlinear optical materials in integrated photonics respectively for their quadratic and cubic optical nonlinearity. A composite aluminum nitride and silicon nitride…

Optics · Physics 2017-12-04 Joshua B. Surya , Xiang Guo , Chang-Ling Zou , Hong X. Tang

We fabricated reproducible high transparency superconducting contacts consisting of superconducting Ti/Al/Ti trilayers to gated single-walled carbon nanotubes (SWCNTs). The reported semiconducting SWCNT have normal state differential…

Superconductivity · Physics 2007-05-23 H. I. Jørgensen , K. Grove-Rasmussen , T. Novotný , K. Flensberg , P. E. Lindelof

We report ultra-high density assembly of aligned single walled carbon nanotubes (SWNTs) two dimensional arrays via ac dielectrophoresis using high quality surfactant free and stable SWNT solutions. After optimization of frequency and…

Mesoscale and Nanoscale Physics · Physics 2011-01-13 Shashank Shekhar , Paul Stokes , Saiful I. Khondaker