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Search for "optics" in Full Text gives 279 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Wafer-level integration of self-aligned high aspect ratio silicon 3D structures using the MACE method with Au, Pd, Pt, Cu, and Ir

  • Mathias Franz,
  • Romy Junghans,
  • Paul Schmitt,
  • Adriana Szeghalmi and
  • Stefan E. Schulz

Beilstein J. Nanotechnol. 2020, 11, 1439–1449, doi:10.3762/bjnano.11.128

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  • Mathias Franz Romy Junghans Paul Schmitt Adriana Szeghalmi Stefan E. Schulz Nano Device Technologies, Fraunhofer Institute for Electronic Nano Systems ENAS, Technologie-Campus 3, 09126 Chemnitz, Germany Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Center of Excellence in
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Published 23 Sep 2020

An atomic force microscope integrated with a helium ion microscope for correlative nanoscale characterization

  • Santiago H. Andany,
  • Gregor Hlawacek,
  • Stefan Hummel,
  • Charlène Brillard,
  • Mustafa Kangül and
  • Georg E. Fantner

Beilstein J. Nanotechnol. 2020, 11, 1272–1279, doi:10.3762/bjnano.11.111

Graphical Abstract
  • the optics is very impractical, as it requires the user to vent the chamber. Using self-sensing readout addresses these concerns [5][10][17] and also significantly improves the usability of the correlative instrument for users outside of the AFM community. The reported AFM uses silicon cantilever
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Published 26 Aug 2020

Nonadiabatic superconductivity in a Li-intercalated hexagonal boron nitride bilayer

  • Kamila A. Szewczyk,
  • Izabela A. Domagalska,
  • Artur P. Durajski and
  • Radosław Szczęśniak

Beilstein J. Nanotechnol. 2020, 11, 1178–1189, doi:10.3762/bjnano.11.102

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  • Kamila A. Szewczyk Izabela A. Domagalska Artur P. Durajski Radoslaw Szczesniak Division of Theoretical Physics, Jan Długosz University in Częstochowa, Ave. Armii Krajowej 13/15, 42-200 Częstochowa, Poland Quantum Optics and Engineering Division, Faculty of Physics and Astronomy, University of
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Published 07 Aug 2020

Integrated photonics multi-waveguide devices for optical trapping and Raman spectroscopy: design, fabrication and performance demonstration

  • Gyllion B. Loozen,
  • Arnica Karuna,
  • Mohammad M. R. Fanood,
  • Erik Schreuder and
  • Jacob Caro

Beilstein J. Nanotechnol. 2020, 11, 829–842, doi:10.3762/bjnano.11.68

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  • waveguides. Keywords: Brownian motion; integrated optics devices; lab-on-a-chip; optical trapping; nanofabrication; Raman spectroscopy; ridge waveguides; Introduction Photonic lab-on-a-chip (LOC) techniques strongly attract attention for the manipulation and measurement of biological particles such as
  • LOC devices are on-chip versions of a laser-tweezers Raman spectroscopy (LTRS) setup, which is a free space optics instrument. In LTRS, optical trapping and Raman spectroscopy of a particle are carried out using a focused laser beam, enabling the label-free analysis of single cells in an aqueous
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Published 27 May 2020

Nanoparticles based on the zwitterionic pillar[5]arene and Ag+: synthesis, self-assembly and cytotoxicity in the human lung cancer cell line A549

  • Dmitriy N. Shurpik,
  • Denis A. Sevastyanov,
  • Pavel V. Zelenikhin,
  • Pavel L. Padnya,
  • Vladimir G. Evtugyn,
  • Yuriy N. Osin and
  • Ivan I. Stoikov

Beilstein J. Nanotechnol. 2020, 11, 421–431, doi:10.3762/bjnano.11.33

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  • cuvettes. The instrument contains a 4 mW He–Ne laser operating at a wavelength of 633 nm and incorporates noninvasive backscatter optics (NIBS). The measurements were performed at the detection angle of 173° and the software automatically determined the measurement position within the quartz cuvette. The
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Published 05 Mar 2020

Size effects of graphene nanoplatelets on the properties of high-density polyethylene nanocomposites: morphological, thermal, electrical, and mechanical characterization

  • Tuba Evgin,
  • Alpaslan Turgut,
  • Georges Hamaoui,
  • Zdenko Spitalsky,
  • Nicolas Horny,
  • Matej Micusik,
  • Mihai Chirtoc,
  • Mehmet Sarikanat and
  • Maria Omastova

Beilstein J. Nanotechnol. 2020, 11, 167–179, doi:10.3762/bjnano.11.14

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  • energy into heat were collected by a suitable optic (Au-coated mirrors, Edmund Optics) and focused on an IR photodetector (HgCdTe photoconductive detector, Kolmar Technologies, KMPV 11-1-J1/DC). Afterwards, a lock-in amplifier (Stanford Research Systems SR865) output the amplitude and phase of the
  • frequencies, a flat top (FT) optics grouping consisting of a diffuser/beam-shaper (ED1-C20, diameter 1", 20°, Circle Pattern Diffuser, Thorlabs) and two lenses (one to collect the large diffused beam and another to converge it on the sample) was used. Using this configuration, the shape of the heating spot
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Published 14 Jan 2020

Mobility of charge carriers in self-assembled monolayers

  • Zhihua Fu,
  • Tatjana Ladnorg,
  • Hartmut Gliemann,
  • Alexander Welle,
  • Asif Bashir,
  • Michael Rohwerder,
  • Qiang Zhang,
  • Björn Schüpbach,
  • Andreas Terfort and
  • Christof Wöll

Beilstein J. Nanotechnol. 2019, 10, 2449–2458, doi:10.3762/bjnano.10.235

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  • °) to determine the molecular orientation. Infrared reflection-absorption spectroscopy (IRRAS) was performed on a Bruker VERTEX80 spectrometer (Bruker Optics GmbH) by investigating the PAT-SAM on Au/silicon wafers. As a background sample we used a SAM of deuterated octadecanethiol on an Au/silicon wafer
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Published 11 Dec 2019

Deterministic placement of ultra-bright near-infrared color centers in arrays of silicon carbide micropillars

  • Stefania Castelletto,
  • Abdul Salam Al Atem,
  • Faraz Ahmed Inam,
  • Hans Jürgen von Bardeleben,
  • Sophie Hameau,
  • Ahmed Fahad Almutairi,
  • Gérard Guillot,
  • Shin-ichiro Sato,
  • Alberto Boretti and
  • Jean Marie Bluet

Beilstein J. Nanotechnol. 2019, 10, 2383–2395, doi:10.3762/bjnano.10.229

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  • is similar to the one described above with all optics optimized for IR emission. A CW 980 nm diode laser was used to excite the sample and perform confocal mapping, a DM (Semrock Di02-R1064-25x36, filters are LP Semrock BLP02-1319R at 1319 nm and a band-pass filter (BP) from Edmund optics at 1350
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Published 05 Dec 2019

Nitrogen-vacancy centers in diamond for nanoscale magnetic resonance imaging applications

  • Alberto Boretti,
  • Lorenzo Rosa,
  • Jonathan Blackledge and
  • Stefania Castelletto

Beilstein J. Nanotechnol. 2019, 10, 2128–2151, doi:10.3762/bjnano.10.207

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  • resonances is interpreted using quantum optics and spin theory, which describe them in terms of spin–orbit interactions and Rabi oscillations. To achieve NV color centers in diamond that are applicable to magnetometry, the reader should refer to the technical information in [20] on the diamond material
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Published 04 Nov 2019

Optimization and performance of nitrogen-doped carbon dots as a color conversion layer for white-LED applications

  • Tugrul Guner,
  • Hurriyet Yuce,
  • Didem Tascioglu,
  • Eren Simsek,
  • Umut Savaci,
  • Aziz Genc,
  • Servet Turan and
  • Mustafa M. Demir

Beilstein J. Nanotechnol. 2019, 10, 2004–2013, doi:10.3762/bjnano.10.197

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  • -Alpha XPS spectrometer. Fourier-transform infrared spectroscopy (FTIR; Spectrum 100, PerkinElmer, Shelton, CT, USA) was used to characterize the kinetic behavior of the chemical bonds. Photoluminescence (PL) and absorbance were measured using an integrating sphere (ISP-50-80-R, Ocean Optics Inc
  • .) attached to a USB2000+ spectrometer (Ocean Optics Inc., Dunedin, FL, USA) with a premium fiber cable. A commercial blue LED chip (CREE, 450 nm, royal blue) was used as the blue light source. The morphology of the produced N-CDot fibers was analyzed by scanning electron microscopy (SEM; Quanta 250, FEI
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Published 15 Oct 2019

Porous silver-coated pNIPAM-co-AAc hydrogel nanocapsules

  • William W. Bryan,
  • Riddhiman Medhi,
  • Maria D. Marquez,
  • Supparesk Rittikulsittichai,
  • Michael Tran and
  • T. Randall Lee

Beilstein J. Nanotechnol. 2019, 10, 1973–1982, doi:10.3762/bjnano.10.194

Graphical Abstract
  • Interest in the preparation and utilization of uniquely structured nanocomposites continues to expand due to their potential use in electronics, optics, magnetism, medicine, catalysis, and energy applications [1][2][3][4][5][6]. The physical and chemical properties of these materials provide significant
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Published 04 Oct 2019

The influence of porosity on nanoparticle formation in hierarchical aluminophosphates

  • Matthew E. Potter,
  • Lauren N. Riley,
  • Alice E. Oakley,
  • Panashe M. Mhembere,
  • June Callison and
  • Robert Raja

Beilstein J. Nanotechnol. 2019, 10, 1952–1957, doi:10.3762/bjnano.10.191

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  • : aluminophosphate; catalysis; hierarchical catalysts; nanoparticles; porosity; Findings The controlled synthetic design of metallic nanoparticles has generated significant interest in recent decades due to their implementation in a range of fields, including medicine [1], optics [2] and catalysis [3]. Given the
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Published 25 Sep 2019

Growth dynamics and light scattering of gold nanoparticles in situ synthesized at high concentration in thin polymer films

  • Corentin Guyot,
  • Philippe Vandestrick,
  • Ingrid Marenne,
  • Olivier Deparis and
  • Michel Voué

Beilstein J. Nanotechnol. 2019, 10, 1768–1777, doi:10.3762/bjnano.10.172

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  • Corentin Guyot Philippe Vandestrick Ingrid Marenne Olivier Deparis Michel Voue University of Mons, Physics of Materials and Optics, Research Institute for Materials Science and Engineering, Mons, Belgium AGC Glass Europe - Technovation Centre, Gosselies, Belgium University of Namur, Physics
  • simpler. In a single step, both the gold salt and the polymer are mixed to prepare the nanocomposite. The simplicity of the method is regarded as a great advantage for the production of nanocomposites for various applications in nano-optics. The principle of in situ methods is the use of one of the matrix
  • backscattering of light from plasmonic nanocomposites doped with AuNPs, which is problematic for fiber optics integration, e.g. in Q-switched fiber lasers. This important issue has so far not been addressed. In particular, we investigate the modifications of the scattering properties of nanocomposites induced by
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Published 23 Aug 2019

Novel hollow titanium dioxide nanospheres with antimicrobial activity against resistant bacteria

  • Carol López de Dicastillo,
  • Cristian Patiño,
  • María José Galotto,
  • Yesseny Vásquez-Martínez,
  • Claudia Torrent,
  • Daniela Alburquenque,
  • Alejandro Pereira and
  • Juan Escrig

Beilstein J. Nanotechnol. 2019, 10, 1716–1725, doi:10.3762/bjnano.10.167

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  • –80° at 0.02° s−1. SAXS measurements were performed using a Bruker N8 Horizon SAXS system equipped with a Cu Kα radiation (λ = 1.54 Å) source and 2D VÅNTEC-500 and MONTEL optics. The data were acquired in the q-range from 0.012–0.37 Å−1 with a measurement time of 14.400 s in vacuum (2 mbar) at room
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Published 19 Aug 2019

Stationary beam full-field transmission helium ion microscopy using sub-50 keV He+: Projected images and intensity patterns

  • Michael Mousley,
  • Santhana Eswara,
  • Olivier De Castro,
  • Olivier Bouton,
  • Nico Klingner,
  • Christoph T. Koch,
  • Gregor Hlawacek and
  • Tom Wirtz

Beilstein J. Nanotechnol. 2019, 10, 1648–1657, doi:10.3762/bjnano.10.160

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  • comprised of a microchannel plate (MCP) in front of a phosphor screen, whose intensity is recorded with a CCD camera (Edmund Optics EO-0312M). There is a metal mesh attenuation grid in front of the MCP, which mechanically blocks 90% of the incoming intensity to prevent damage to the MCP. There are three
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Published 07 Aug 2019

Magnetic segregation effect in liquid crystals doped with carbon nanotubes

  • Danil A. Petrov,
  • Pavel K. Skokov,
  • Alexander N. Zakhlevnykh and
  • Dmitriy V. Makarov

Beilstein J. Nanotechnol. 2019, 10, 1464–1474, doi:10.3762/bjnano.10.145

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  • ratio the physical properties of this carbon nanomaterial vary greatly in different directions. In this sense, the anisotropic properties of CNTs (for example, thermal and electrical conductivities) are attractive for a wide range of applications, including nanoelectronics and optics [2]. A distinctive
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Published 22 Jul 2019

Growth of lithium hydride thin films from solutions: Towards solution atomic layer deposition of lithiated films

  • Ivan Kundrata,
  • Karol Fröhlich,
  • Lubomír Vančo,
  • Matej Mičušík and
  • Julien Bachmann

Beilstein J. Nanotechnol. 2019, 10, 1443–1451, doi:10.3762/bjnano.10.142

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  • used. Characterization Auger spectroscopy was carried out on a Auger microprobe Jeol JAMP-9510F with hemispherical analyser using 3 kV accelerating voltage and 10 nA probe current. Sample was tilted 55° to the excitation, with the normal coincident with the axis of the collection optics of the analyser
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Published 18 Jul 2019

Janus-micromotor-based on–off luminescence sensor for active TNT detection

  • Ye Yuan,
  • Changyong Gao,
  • Daolin Wang,
  • Chang Zhou,
  • Baohua Zhu and
  • Qiang He

Beilstein J. Nanotechnol. 2019, 10, 1324–1331, doi:10.3762/bjnano.10.131

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  • luminescence was measured using a HORIBA Jobin Yvon FluoroMax-4 spectrophotometer with a 980 nm diode laser at a power of 1 W cm−2 (Shanghai Laser & Optics Century Co. Ltd). (a) Schematic representation of the fabrication process of Janus UCNP-modified polyelectrolyte capsule motors. (b) TEM images, (c) FTIR
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Published 28 Jun 2019

Fabrication of phase masks from amorphous carbon thin films for electron-beam shaping

  • Lukas Grünewald,
  • Dagmar Gerthsen and
  • Simon Hettler

Beilstein J. Nanotechnol. 2019, 10, 1290–1302, doi:10.3762/bjnano.10.128

Graphical Abstract
  • their transverse beam profile in form of a squared Bessel function of the first kind and m-th order, , which were first discussed and experimentally realized in light optics [22][23]. For m = 0 the global maximum of the Bessel function lies at the origin, making this case interesting for an electron
  • with kρ = 10 µm−1 and a diameter of 10 µm in the plane of the second condenser (C2) aperture. Illumination of the PM can be controlled via excitation of the first condenser lens (C1), which is accomplished in this microscope by changing the value of the so-called “spot size”. The imaging optics of the
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Published 25 Jun 2019

Angle-dependent structural colors in a nanoscale-grating photonic crystal fabricated by reverse nanoimprint technology

  • Xu Zheng,
  • Qing Wang,
  • Jinjin Luan,
  • Yao Li,
  • Ning Wang and
  • Rui Zhang

Beilstein J. Nanotechnol. 2019, 10, 1211–1216, doi:10.3762/bjnano.10.120

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  • crystal was peeled-off from the PC mould. The surface structures of photonic crystal were obtained by SEM (Nova Nano SEM450, USA). The spectroscopic analyses were performed with an Ocean Optics fiber-optic spectrophotometer. The data analysis and fitting were performed by using Origin software. The SEM
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Published 11 Jun 2019

Green fabrication of lanthanide-doped hydroxide-based phosphors: Y(OH)3:Eu3+ nanoparticles for white light generation

  • Tugrul Guner,
  • Anilcan Kus,
  • Mehmet Ozcan,
  • Aziz Genc,
  • Hasan Sahin and
  • Mustafa M. Demir

Beilstein J. Nanotechnol. 2019, 10, 1200–1210, doi:10.3762/bjnano.10.119

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  • Optics spectrometer (Ocean Optics, USB2000+, Duiven, The Netherlands). Synthesis of Eu-doped yttrium hydroxide crystals An amount of yttrium(III) acetate hydrate (5.63 × 10−4 mol) and a varying amount of europium(III) acetate hydrate were dissolved in 10 mL of deionized water. Depending on the dopant
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Published 07 Jun 2019

Pure and mixed ordered monolayers of tetracyano-2,6-naphthoquinodimethane and hexathiapentacene on the Ag(100) surface

  • Robert Harbers,
  • Timo Heepenstrick,
  • Dmitrii F. Perepichka and
  • Moritz Sokolowski

Beilstein J. Nanotechnol. 2019, 10, 1188–1199, doi:10.3762/bjnano.10.118

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  • hemispherical LEED optics. These intrinsic distortions were corrected using a custom-written software according to the formulas given in [30]. Nevertheless, some residual distortions still remain that typically cause a less perfect fitting of the simulated and experimental LEED patterns in the outer region of
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Published 06 Jun 2019

Fe3O4 nanoparticles as a saturable absorber for giant chirped pulse generation

  • Ji-Shu Liu,
  • Xiao-Hui Li,
  • Abdul Qyyum,
  • Yi-Xuan Guo,
  • Tong Chai,
  • Hua Xu and
  • Jie Jiang

Beilstein J. Nanotechnol. 2019, 10, 1065–1072, doi:10.3762/bjnano.10.107

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  • Equipment Development” Project (Grant No. 2013YQ310633); Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences (number SKLST201401, SKLST201809); Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute
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Published 20 May 2019
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  • linear response, it was found that 10 SERS AuNTs inside the probed area are required. These findings indicate that a better signal-to-noise ratio requires high-magnification optics, while linearity versus tag number can be improved by using low-magnification optics or a high tag density. In general the
  • , which can be obtained more easily with low-magnification optics when the surface density of the SERS tags is as low as a few units per micrometer square. These results contribute to the optimization of the experimental conditions for the use of SERS tags in analytical and biomedical analysis with high
  • inside the probed area is required to obtain a linear response, that is, on the order of 10 tags. Overall, these results suggest that a better signal-to-noise ratio requires optics with a high numerical aperture, while linearity versus tags number is improved by using low-magnification optics. However
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Published 10 May 2019

Electronic properties of several two dimensional halides from ab initio calculations

  • Mohamed Barhoumi,
  • Ali Abboud,
  • Lamjed Debbichi,
  • Moncef Said,
  • Torbjörn Björkman,
  • Dario Rocca and
  • Sébastien Lebègue

Beilstein J. Nanotechnol. 2019, 10, 823–832, doi:10.3762/bjnano.10.82

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  • , as it was done with MoS2 [51] and phosphorene monolayers [52]. At the same time, the compounds studied could be relevant in optics and optoelectronics, to design new photodetectors, polarizing filters, or modulating devices, as has already been done with other two-dimensional compounds [53][54]. Also
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Published 03 Apr 2019
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