Results 31 to 40 of about 14,212 (148)

Ultrafast laser inscription: perspectives on future integrated applications [PDF]

, 2014
This paper reviews the recent advancements achieved using ultrafast laser inscription (ULI) that highlight the cross-disciplinary potential of the technology.
Ams M., Calmano T., Dugan M., Lancaster D. G., Li C. X., Macdonald J. R., Mary R., Ródenas A., Simon M., Sugioka K., Taccheo S., Thomson R. R., Vazquez R., Wang J.   +13 more
core   +1 more source

The Investigation of Intermediate Stage of Template Etching with Metal Droplets by Wetting Angle Analysis on (001) GaAs Surface

Nanoscale Research Letters, 2011
In this work, we study metal droplets on a semiconductor surface that are the initial stage for both droplet epitaxy and local droplet etching. The distributions of droplet geometrical parameters such as height, radius and volume help to understand the ...
Lyamkina AA, Dmitriev DV, Galitsyn Yu, Kesler VG, Moshchenko SP, Toropov AI   +5 more
doaj  

Thermal Conductance of Ballistic Point Contacts

, 2011
We study the thermal conductance of ballistic point contacts. These contacts are realized as few nanometer long pillars in so called air-gap heterostructures (AGHs).
Bartsch, Thorben, Hansen, Wolfgang, Heyn, Christian, Schmidt, Matthias   +3 more
core   +1 more source

Fabrication of mirror templates in silica with micron-sized radii of curvature [PDF]

, 2016
We present the fabrication of exceptionally small-radius concave microoptics on fused silica substrates using CO2 laser ablation and subsequent reactive ion etching.
Najer, Daniel, Renggli, Martina, Riedel, Daniel, Starosielec, Sebastian, Warburton, Richard J.   +4 more
core   +2 more sources

Stability of spin droplets in realistic quantum Hall devices

, 2013
We study the formation and characteristics of "spin droplets",i.e., compact spin-polarized configurations in the highest occupied Landau level, in an etched quantum Hall device at filling factors $2\leq\nu\leq3$.
Atci, H., Erkarslan, U., Rasanen, E., Siddiki, A.   +3 more
core   +1 more source

Local Droplet Etching of a Vicinal Ingaas(111)A Metamorphic Layer

Applied Surface Science
We demonstrated nanopit formation by Ga-assisted local droplet etching technique in InGaAs metamorphic layers grown on vicinal GaAs(111)A substrates. We studied nanopit formation depending on the substrate temperature, Ga flux and Ga amount. The etched pits show a highly symmetrical pyramidal shape with an equilateral triangular base and the edges of ...
Artur Tuktamyshev, Davide Lambardi, Stefano Vichi, Federico Cesura, Stefano Cecchi, Alexey Fedorov, Sergio Bietti, Stefano Sanguinetti   +7 more
openaire   +2 more sources

Neutral, charged excitons and biexcitons in strain-free and asymmetric GaAs quantum dots fabricated by local droplet etching

Journal of Luminescence, 2018
Abstract We present an experimental and theoretical study of the optical properties of asymmetric strain-free GaAs quantum dots (QDs) fabricated by filling of self-organized nanoholes (NHs) created by local droplet etching. The energy levels are calculated within the effective mass approximation using as input a model anisotropic QD shape with C
Trabelsi, Z., Yahyaoui, M., Radhia, S. Ben, Boujdaria, K., Zallo, E., Schmidt, O.G., Atkinson, P., Chamarro, M., Testelin, C.   +8 more
openaire   +1 more source

The leidenfrost phenomenon on structured surfaces [PDF]

, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014), Duursma, GR, Kennedy, RAP, Sefiane, K   +3 more
core  

Synthesis of microporous silica nanoparticles to study water phase transitions by vibrational spectroscopy [PDF]

, 2019
Silica can take many forms, and its interaction with water can change dramatically at the interface. Silica based systems offer a rich tapestry to probe the confinement of water as size and volume can be controlled by various templating strategies and ...
Arriagada, Asay, Bechtel, Boreyko, Cerveny, Djojoputro, Dou, Enthaler, Fang, Fayer, Fumagalli, Huang, Jacobs, Joo, Knight, Kostko, Le Caër, Lee, Lin, Lin, Lin, Liu, Mei, Musat, Nagarajan, Nagata, Noy, Ostroverkhov, Peixinho, Peng, Qiao, Ren, Rosu-Finsen, Sharma, Sulpizi, Takei, Teng, Wan, Wan, Wang, Warring, Yang, Yi, Yi, Yu, Zhang, Zhang, Zhang, Zhao, Zhu   +49 more
core   +1 more source

Optical and Magnetic Response by Design in GaAs Quantum Dots

PRX Quantum
Quantum networking technologies use spin qubits and their interface to single photons as core components of a network node. This necessitates the ability to co-design the magnetic- and optical-dipole response of a quantum system—a capability that has ...
Christian Schimpf, Ailton J. Garcia, Jr., Zhe X. Koong, Giang N. Nguyen, Lukas L. Niekamp, Martin Hayhurst Appel, Ahmed Hassanen, James Waller, Yusuf Karli, Saimon Filipe Covra da Silva, Julian Ritzmann, Hans-Georg Babin, Andreas D. Wieck, Anton Pishchagin, William Hease, Nico Margaria, Ti-Huong Au, Sebastien Boissier, Martina Morassi, Aristide Lemaitre, Pascale Senellart, Niccolo Somaschi, Arne Ludwig, Richard J. Warburton, Mete Atatüre, Armando Rastelli, Michał Gawełczyk, Dorian A. Gangloff   +27 more
doaj   +1 more source