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Telecommunications and polarimetry both require the active control of the polarization of light, Currently, this is done by combining intrinsically anisotropic materials with tunable isotropic materials into heterostructures using…

The interaction of double wall carbon nanotubes (DWCNTs) and the conducting polymer poly(3,4-ethylenedioxythiphene/polystyrenesulfonate (PEDOT/PSS) was studied by in-situ Raman spectroelectrochemistry. The mixing of DWCNTs with PEDOT/PSS…

材料科学 · 物理学 2021-07-26 Martin Kalbáč , Ladislav Kavan , Lothar Dunsch

Photonic integrated circuits require robust room-temperature single-photon sources to enable scalable quantum technologies. Single-walled carbon nanotubes (CNTs), with their unique excitonic properties and chemical tunability, are…

Surface enhanced Raman spectroscopy, is a technique of fundamental importance to analytical science and technology where the amplified Raman spectrum of analytes is used for chemical fingerprinting. Here, we showcase an engineered…

应用物理 · 物理学 2021-06-08 K N Prajapati , Anoop A Nair , S Ravi P Silva , J Mitra

Integrated arrays of Superconducting Nanowire Single Photon Detectors (SNSPDs) have shown capabilities such as Photon Number Resolution, single photon imaging and coincidences detection, and can be effectively used also in other different…

Raman spectroscopy has been the most extensively employed method to study carbon nanotubes at high pressures. This review covers reversible pressure-induced changes of the lattice dynamics and structure of single- and multi-wall carbon…

凝聚态物理 · 物理学 2009-09-29 I. Loa

We report on electrical Raman measurements in transparent and conducting single-wall carbon nanotube (SWNT) thin films. Application of external electric field results in downshifts of the D and G modes and in reduction of their intensity.…

材料科学 · 物理学 2015-06-25 Giovanni Fanchini , Husnu Emrah Unalan , Manish Chhowalla

This paper is the first one of a series of two articles in which we revisit the optical properties of single-walled carbon nanotubes (SWNT). Produced by rolling up a graphene sheet, SWNT owe their intriguing properties to their cylindrical…

数学物理 · 物理学 2018-11-30 Morten Rasmussen , Benjamin Ricaud , Baptiste Savoie

The growth of single wall carbon nanotubes (SWCNT) inside host SWCNTs remains a compelling alternative to the conventional catalyst induced growth processes. It not only provides a catalyst free process but the ability to control the…

介观与纳米尺度物理 · 物理学 2021-01-28 J. Koltai , H. Kuzmany , T. Pichler , F. Simon

Single-walled carbon nanotubes have advantages as a nanoscale light source compatible with silicon photonics because they show room-temperature luminescence at telecom-wavelengths and can be directly synthesized on silicon substrates. Here…

介观与纳米尺度物理 · 物理学 2013-04-24 S. Imamura , R. Watahiki , R. Miura , T. Shimada , Y. K. Kato

Electromagnetic characteristics of single-walled finite-length carbon nanotubes - absorption cross-section and field enhancement in the near zone - are theoretically studied in a wide frequency range from terahertz to visible. The analysis…

材料科学 · 物理学 2008-06-19 M. V. Shuba , S. A. Maksimenko , G. Ya. Slepyan

Usually, in optical spectra of double-walled carbon nanotubes (DWCNTs) weak van der Waals coupling between the layers leads only to a small shift of transition energies with respect to their values in pristine single-walled nanotubes.…

介观与纳米尺度物理 · 物理学 2020-09-30 D. V. Chalin , S. B. Rochal

The photoconductance properties of photosystem I (PSI) covalently bound to carbon nanotubes (CNTs) are measured. We demonstrate that the PSI forms active electronic junctions with the CNTs enabling control of the CNTs photoconductance by…

材料科学 · 物理学 2015-05-13 Simone Kaniber , Friedrich Simmel , Alexander Holleitner , Itai Carmeli

Theory predicts peculiar features for excited-state dynamics in one dimension (1D) that are difficult to be observed experimentally. Single-walled carbon nanotubes (SWNTs) are an excellent approximation to 1D quantum confinement, due to…

介观与纳米尺度物理 · 物理学 2015-05-13 Giancarlo Soavi , Francesco Scotognella , Daniele Viola , Timo Hefner , Tobias Hertel , Giulio Cerullo , Guglielmo Lanzani

Cancer immunotherapy provides durable clinical benefit in only a small fraction of patients, particularly due to a lack of reliable biomarkers for accurate prediction of treatment outcomes and evaluation of response. Here, we demonstrate…

Imaging Raman spectroscopy can be used to identify cancerous tissue. Traditionally, a step-by-step scanning of the sample is applied to generate a Raman image, which, however, is too slow for routine examination of patients. By transferring…

天体物理仪器与方法 · 物理学 2018-10-09 Elmar Schmälzlin , Benito Moralejo , Ingo Gersonde , Johannes Schleusener , Maxim E. Darvin , Gisela Thiede , Martin M. Roth

In the realm of healthcare, label-free sensing is a vital component for various applications. Micro-photonic technology presents a promising avenue to pursue pivotal goals. With the use of this technology, healthcare professionals and…

光学 · 物理学 2024-04-24 Giuseppina Simone

Carbon nanowall (CNW) is a two dimensional graphitic nanostructures with many potential applications like field emission, catalyst support for fuel cell and negative electrode for batteries. CNWs were grown here on Si substrates by plasma…

介观与纳米尺度物理 · 物理学 2018-04-20 R. Kar , N. N. Patel , S. Sinha

Single walled carbon nanotubes (SWNTs) are luminescent. Up to now, two preparation methods, both of which isolate individual SWNTs, have enabled the detection of nanotube bandgap photoluminescence (PL): encapsulation of individual SWNTs…

凝聚态物理 · 物理学 2009-11-10 J. Lefebvre , J. M. Fraser , Y. Homma , P. Finnie

We present a comprehensive characterization of an individual multiwalled carbon nanotube transport device combining electron microscopy and Raman spectroscopy with electrical measurements. Each method gives complementary information that…

介观与纳米尺度物理 · 物理学 2011-08-01 Robert Frielinghaus , Karin Goß , Stefan Trellenkamp , Lothar Houben , Claus M. Schneider , Carola Meyer