TEM sample preparation of lithographically patterned permalloy nanostructures on silicon nitride membranes

• Joshua Williams,
• Michael I. Faley,
• Joseph Vimal Vas,
• Peng-Han Lu and
• Rafal E. Dunin-Borkowski

Beilstein J. Nanotechnol. 2024, 15, 1–12, doi:10.3762/bjnano.15.1

• . Finally, we observed the vortex dynamics of the Py nanodisk under magnetic fields using LTEM and off-axis electron holography. A correlation between preparation methods and the properties of the Py nanostructures was made. Keywords: electron holography; Lorentz transmission electron microscopy; magnetic

• imaging; nanodisk; nanofabrication; permalloy; Introduction The ability to study the spatial distribution of magnetization in ferromagnetic nanostructures is important for developing nanoelectronics, particularly for data storage and information processing. A vortex spin configuration has been observed

• ion beam. This method avoids the resist-based fabrication, which is common in preparing nanodisk samples for TEM [8][20]. We have also developed a method of sample preparation for patterned nanostructures starting from a bulk substrate. This method is versatile and might be useful for more complicated

Plasmonic nanotechnology for photothermal applications – an evaluation

• A. R. Indhu,
• L. Keerthana and
• Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

• plasmonic gold (Au) metasurface for sensing volatile organic compounds (VOCs) [49]. This modification enhanced the plasmonic field and local surface plasmonic resonance (LSPR). The influence of the gold nanodisk diameter and the average thickness of the TiO2 fractal on LSPR sensing of VOCs, specifically

On the stability of microwave-fabricated SERS substrates – chemical and morphological considerations

• Limin Wang,
• Aisha Adebola Womiloju,
• Christiane Höppener,
• Ulrich S. Schubert and
• Stephanie Hoeppener

Beilstein J. Nanotechnol. 2021, 12, 541–551, doi:10.3762/bjnano.12.44

• on the substrates [8], the synthesis of complex nanoparticle structures with tunable interparticle gap sizes [9], the utilization of micro- and nanofabricated structures obtained by lithography techniques [10][11][12] comprising nanodisk arrays [13], nanoholes [14][15], nanocups [16][17

Materials nanoarchitectonics at two-dimensional liquid interfaces

• Katsuhiko Ariga,
• Michio Matsumoto,
• Taizo Mori and
• Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

Silencing the second harmonic generation from plasmonic nanodimers: A comprehensive discussion

• Jérémy Butet,
• Gabriel D. Bernasconi and
• Olivier J. F. Martin

Beilstein J. Nanotechnol. 2018, 9, 2674–2683, doi:10.3762/bjnano.9.250

• “silencing” of the SHG can be reduced by designing non-centrosymmetric gaps, as the one observed in T-shaped nanostructures [41], V-shaped nanoantennas coupled to nanorods [42], and nanorod–nanodisk systems [43]. Conclusion In conclusion, this article reports a comprehensive study of the “silencing” effect

Metal–dielectric hybrid nanoantennas for efficient frequency conversion at the anapole mode

• Valerio F. Gili,
• Lavinia Ghirardini,
• Davide Rocco,
• Giuseppe Marino,
• Ivan Favero,
• Iännis Roland,
• Giovanni Pellegrini,
• Lamberto Duò,
• Marco Finazzi,
• Luca Carletti,
• Andrea Locatelli,
• Aristide Lemaître,
• Dragomir Neshev,
• Costantino De Angelis,
• Giuseppe Leo and
• Michele Celebrano

Beilstein J. Nanotechnol. 2018, 9, 2306–2314, doi:10.3762/bjnano.9.215

• sizeable efficiency enhancement. First reported in individual silicon-on-insulator nanodisks [17] and soon after in a coupled nanodisk trimer configuration [18], the THG enhancement attained was up to 100 times higher than in a Si slab of the same thickness thanks to the exploitation of Mie-type resonances

• , which help identifying the typical anapole configuration. We have compared the linear behavior of the hybrid geometry against that of a bare nanodisk with its anapole mode at correspondence with the pump wavelength. To do so we focused on two key parameters: the total scattered power, calculated as the

• scattered power of the first five radiating multipole moments in the bare nanodisk (hybrid system) we computed the first five Cartesian multipole moments inside the cylinder using the expressions summarized in [40], where Pe, Md, Td, Qe and Qm indicate the electric dipole, magnetic dipole, toroidal dipole

Interaction-tailored organization of large-area colloidal assemblies

• Silvia Rizzato,
• Elisabetta Primiceri,
• Anna Grazia Monteduro,
• Adriano Colombelli,
• Angelo Leo,
• Maria Grazia Manera,
• Roberto Rella and
• Giuseppe Maruccio

Beilstein J. Nanotechnol. 2018, 9, 1582–1593, doi:10.3762/bjnano.9.150

• order to leave an array of ordered holes. In order to prepare the nanodisk lattices (Figure 1c), a gold film (20 and 40 nm thick films for particles of 80 nm and 500 nm diameter, respectively) was thermally evaporated on the glass substrate before layer-by-layer (LbL) deposition and colloidal assembly

• by means of the same technique are shown in Figure 4e,f. For the development of plasmonic materials characterized by sharp LSPR resonances in a desired spectral range, and for the interpretation of experimental measurements, the optical response of gold nanodisk and nanoholes realized on glass

• ) Nanoholes in gold film and cobalt, respectively. Absorbance spectra of (a) 80 nm gold nanodisk, (b) 80 nm gold nanoholes and (c) 500 nm gold nanodisk. All the spectra have been acquired at room temperature in the vis-NIR spectral range and compared with numerical results (dotted lines). (d) Longitudinal

Enhanced photocatalytic activity of Ag–ZnO hybrid plasmonic nanostructures prepared by a facile wet chemical method

• Sini Kuriakose,
• Vandana Choudhary,
• Biswarup Satpati and
• Satyabrata Mohapatra

Beilstein J. Nanotechnol. 2014, 5, 639–650, doi:10.3762/bjnano.5.75

• ) have been investigated. Increase in citrate concentration has been found to result in the formation of nanodisk-like structures, due to citrate-assisted oriented attachment of ZnO nanoparticles. The decoration of ZnO nanostructures with Ag nanoparticles resulted in a significant enhancement of the

• concentration is increased to 20 mM, nanodisk-like structures formed due to oriented attachment of aggregating nanoparticles. It is evident from the FESEM images that above a threshold concentration trisodium citrate assists in the oriented attachment of ZnO nanoparticles and leads to the formation of nanodisk

• proceeds sideways, which leads to the formation of nanodisk-like structures. Our FESM results showing formation of nanodisk-like structures at higher citrate concentration go in line with this. Figure 2 shows the XRD patterns of as-synthesized ZnO and Ag–ZnO samples (sample nomenclature shown in Table 1

Controlling the near-field excitation of nano-antennas with phase-change materials

• Tsung Sheng Kao,
• Yi Guo Chen and
• Ming Hui Hong

Beilstein J. Nanotechnol. 2013, 4, 632–637, doi:10.3762/bjnano.4.70

• absorption loss allow GST to significantly alter the dielectric environment of a plasmonic system while keeping the loss manageable. Regarding the use of a GST phase-change thin film as a controllable medium, a recent research has experimentally demonstrated that the lattice resonance of a gold nanodisk