Results 71 to 80 of about 66,449 (265)

Operation of a Microfabricated Planar Ion-Trap for Studies of a Yb$^+$-Rb Hybrid Quantum System

, 2019
In order to study interactions of atomic ions with ultracold neutral atoms, it is important to have sub-$\mu$m control over positioning ion crystals. Serving for this purpose, we introduce a microfabricated planar ion trap featuring 21 DC electrodes. The
Bahrami, Abasalt, Drechsler, Martin, Gerritsma, Rene, Joger, Jannis, Müller, Matthias, Schmidt-Kaler, Ferdinand   +5 more
core   +1 more source

Direct Recycling of Cold Work Tool Steel Swarf into New Cutting Disks via Field‐Assisted Sintering

Advanced Engineering Materials, EarlyView.
Through a sintering method known as field‐assisted sintering technology/spark plasma sintering, cold work tool steel swarf can be directly recycled into new cutting disks. This method is capable of densifying the unconventional powder morphology of swarf, and it can also seal grinding contaminants, such as Al2O3, into the steel matrix.
Monica Keszler, Felix Großwendt, Olivier Guillon, Sebastian Weber, Martin Bram   +4 more
wiley   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

Photonic Quantum Logic with Narrowband Light from Single Atoms [PDF]

, 2015
Increasing control of single photons enables new applications of photonic quantum-enhanced technology and further experimental exploration of fundamental quantum phenomena.
Barter, Oliver, Dilley, Jerome, Holleczek, Annemarie, Kuhn, Axel, Langfahl-Klabes, Gunnar, Marshall, Graham D., Matthews, Jonathan C. F., Nisbet-Jones, Peter B. R., O'Brien, Jeremy L., Poulios, Konstantinos, Rubenok, Allison, Sparrow, Chris   +11 more
core   +2 more sources

Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao, Ryosuke Nitta, Seiichiro Izawa, Jun‐ichi Yamaura, Yutaka Majima   +4 more
wiley   +1 more source

Macroscopic Entanglement of a Bose Einstein Condensate on a Superconducting Atom Chip

, 2007
We propose and analyse a practically implementable scheme to generate macroscopic entanglement of a Bose-Einstein condensate in a micro-magnetic trap magnetically coupled to a superconducting loop.
Armour, Bach, Cano, Chiorescu, Friedman, Hansel, Harber, Hofferberth, Jones, Makhlin, Mandip Singh, Mitchell, Mooij, Mukai, Mølmer, Nirrengarten, Sackett, Schumm, Shin, Sørensen, Treutlein, Treutlein, Treutlein, van der Wal, van derWal, Walther, You   +26 more
core   +2 more sources

Dynamical tunnelling with ultracold atoms in magnetic microtraps [PDF]

, 2013
The study of dynamical tunnelling in a periodically driven anharmonic potential probes the quantum-classical transition via the experimental control of the effective Planck's constant for the system.
A. J. Lichtenberg, C. A. Holmes, C. Cohen-Tannoudji, C. J. Pethick, Christopher J. Vale, G. J. Milburn, Halina Rubinsztein-Dunlop, L. E. Reichl, Martin Lenz, Matthew J. Davis, Norman R. Heckenberg, Sebastian Wüster   +11 more
core   +3 more sources

Structurally Colored Physically Unclonable Functions with Ultra‐Rich and Stable Encoding Capacity

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reports a design strategy for generating bright‐field resolvable physically unclonable functions with extremely rich encoding capacity coupled with outstanding thermal and chemical stability. The optical response emerges from thickness‐dependent structural color formation in ZnO features, which are fabricated by physical vapor deposition ...
Abidin Esidir, Miaoning Ren, Sami Pekdemir, Mustafa Kalay, Nilgun Kayaci, Nail Gunaltay, Hakan Usta, Xian Huang, Mustafa Serdar Onses   +8 more
wiley   +1 more source

Engineering the Hierarchical Porosity of Granular Hydrogel Scaffolds Using Porous Microgels to Improve Cell Recruitment and Tissue Integration

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By fabricating and covalently assembling gelatin methacryloyl (GelMA) porous microgels, a new class of granular hydrogel scaffolds with hierarchical porosity is developed. These scaffolds have a significantly higher void fraction than their counterparts made up of nonporous microgels, enhancing cell recruitment and tissue integration. This research may
Alexander Kedzierski, Sina Kheirabadi, Arian Jaberi, Zaman Ataie, Catherine L. Mojazza, Marisa L. Williamson, Anton M. Hjaltason, Aneesh Risbud, Yuanhui Xiang, Amir Sheikhi   +9 more
wiley   +1 more source

894 nm high temperature operating vertical-cavity surface-emitting laser and its application in Cs chip-scale atomic-clock system

Acta Physica Sinica, 2016
In this study, an 894 nm high temperature vertical-cavity surface-emitting laser (VCSEL) is reported. Furthermore, a Cs chip-scale atomic clock (CSAC) system experiment based on this VCSEL is carried out.To achieve low threshold/power consumption under high temperature condition, the VCSEL epitaxial structure is optimized.
Zhong Chu-Yu, Zhang Jian, Wang Li-Jun, Gu Si-Hong, Zhang Xing, Ning Yong-qiang, Zhang Jianwei, Zhang Yi, Huang You-Wen   +8 more
openaire   +2 more sources