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Large amounts of hyperpolarized 3He gas with high nuclear polarization rates are required for use in neutron spin filters or nuclear magnetic resonance imaging of human lung. Very high efficiency can be obtained by metastability exchange…

Topography evolution of Si(100) surface due to oblique incidence low energy ion beam sputtering (IBS) is investigated. Experiments were carried out at different elevated temperatures from 20$^{\circ}$C to 450$^{\circ}$C and at each…

Materials Science · Physics 2016-04-08 Debasree Chowdhury , Biswarup Satpati , Debabrata Ghose

In the framework of swift heavy ion - matter interaction, the thermal spike has proved its worth since nearly two decades. This paper deals with the necessary refinement of the computation due to the kind of materials involved i.e.…

Materials Science · Physics 2015-06-03 Ch. Dufour , V. Khomenkov , G. Rizza , M. Toulemonde

With their optical wavelength in the near infrared (790-800nm) and their unique spectroscopic properties at cryogenic temperatures, thulium-doped crystals are at the center of many architectures linked to classical signal processing and…

We investigated the effect of a photovoltaic field generated on the surface of iron-doped lithium niobate crystals on droplets of a ferroelectric nematic liquid crystalline and a standard nematic liquid crystalline material deposited on…

Soft Condensed Matter · Physics 2022-08-05 Luka Cmok , Nerea Sebastián , Alenka Mertelj , Yongfa Kong , Xinzheng Zhang , Irena Drevenšek-Olenik

Optical levitation of nano-scale systems offers a pathway to highly sensitive rotation measurements, which are critical for advancing gyroscopic technologies. While prior studies have primarily focused on controlling rotational degrees of…

Engineering large-scale quantum computers which simultaneously provide high-fidelity quantum operations, low memory errors, low crosstalk, and reasonable resource usage remains an outstanding challenge across quantum computing platforms. In…

Photonic nanocavities are a key component in many applications because of their capability of trapping and storing photons and enhancing interactions of light with various functional materials and structures. The maximal number of photons…

Optics · Physics 2013-03-15 Xiankai Sun , Xufeng Zhang , Carsten Schuck , Hong X. Tang

We demonstrate a novel method for the excitation of sizable magneto-optical effects in Au by means of the laser-induced injection of hot spin-polarized electrons in Au/Fe/MgO(001) heterostructures. It is based on the energy- and…

Mesoscale and Nanoscale Physics · Physics 2019-02-20 A. Alekhin , I. Razdolski , M. Berritta , D. Bürstel , V. Temnov , D. Diesing , U. Bovensiepen , G. Woltersdorf , P. M. Oppeneer , A. Melnikov

Integrated optical quantum memories are a scalable solution to synchronize a large number of quantum nodes. Without compact quantum memories, some astonishing quantum applications such as distributed quantum computing and quantum sensor…

Optics · Physics 2023-10-10 Xia-Xia Li , Pai Zhou , Yu-Hui Chen , Xiangdong Zhang

Erbium doped solids are potential candidates for the realization of a quantum memory for photons at telecommunication wavelengths. The implementation of quantum memory proposals in rare earth ion doped solids require spectral tailoring of…

Quantum Physics · Physics 2010-02-15 B. Lauritzen , S. R. Hastings-Simon , H. de Riedmatten , M. Afzelius , N. Gisin

Scanning Electron Microscopy (SEM) experiments provide detailed insights into material microstructures, enabling high-resolution imaging as well as crystallographic analysis through advanced techniques like Electron Backscatter Diffraction…

Materials Science · Physics 2024-12-05 Christina Koenig , Alice Bastos da Silva Fanta , Joerg R. Jinschek

We demonstrate nanometer-scale spatial control of inter-atomic interactions in a Bose-Einstein condensate of ytterbium(Yb). A pulsed optical standing wave, tuned near an optical Feshbach resonance varies the s-wave scattering length…

Atomic Physics · Physics 2015-05-19 Rekishu Yamazaki , Shintaro Taie , Seiji Sugawa , Yoshiro Takahashi

Quantum memories integrated into nanophotonic silicon devices are a promising platform for large quantum networks and scalable photonic quantum computers. In this context, erbium dopants are particularly attractive, as they combine optical…

Quantum Physics · Physics 2023-07-27 Stephan Rinner , Florian Burger , Andreas Gritsch , Jonas Schmitt , Andreas Reiserer

An optically-induced thermal non-linear effect in a nematic liquid-crystal (E7) cell is evidenced through weak light-absorption by the ITO coating of an infrared pulsed femtosecond laser (m). Strong spatial self-phase modulation is…

The focused ion beam (FIB) microscope is well established as a high-resolution machining instrument capable of site-selectively removing material down to the nanoscale. Beyond subtractive processing, however, the FIB can also add material…

Materials Science · Physics 2025-10-07 Frances Isabel Allen

Storage rings have been employed over three decades in various kinds of nuclear and atomic physics experiments with highly charged ions. Storage ring operation and precision physics experiments benefit from the availability of beam cooling…

Nuclear Experiment · Physics 2020-10-28 Markus Steck , Yuri A. Litvinov

A two-step photoionization strategy of an ultracold rubidium beam for application in a focused ion beam instrument is analyzed and implemented. In this strategy the atomic beam is partly selected with an aperture after which the transmitted…

Atomic Physics · Physics 2017-11-22 G. ten Haaf , S. H. W. Wouters , P. H. A. Mutsaers , E. J. D. Vredenbregt

We have investigated nonlinear refraction in all-inorganic halide perovskites, the CsPbBr$_3$ and CsPbBr$_{1.5}$I$_{1.5}$ nanosheet and quantum dot colloids in toluene, by a novel beam deflection technique using near-resonant continuous…

Mesoscale and Nanoscale Physics · Physics 2019-11-12 Samrat Roy , Arnab Mandal , Akshay Raj R. , Sayan Bhattacharyya , Bipul Pal

Sessile droplets of a ferroelectric nematic liquid crystalline material were exposed to surface electric fields produced by pyroelectric and photogalvanic (photovoltaic) effects in X-cut iron-doped lithium niobate crystals. The resulting…