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The fast component of the barium fluoride (BaF$_{2}$) crystal luminescence with the emission peak at 220 nm allows those crystals to be employed in fast calorimeters operating in harsh radiation environment. However, the slow component with…

We propose to introduce additional control in levitated optomechanics by trapping a meta-atom, i.e. a subwavelength and high-permittivity dielectric particle supporting Mie resonances. In particular, we theoretically demonstrate that…

In work is considered average transverse dynamics of an electron beam in the autoresonant laser. It is shown, that in approach of the given external electromagnetic wave (small gain free electron laser) transverse emittance of a beam of the…

Accelerator Physics · Physics 2009-11-07 R. V. Tumanian

We theoretically investigate the coupling of an ultracold three-level atomic gas and a nano-mechanical mirror via classical electromagnetic radiation. The radiation pressure on the mirror is modulated by absorption of a probe light field,…

Quantum Physics · Physics 2016-03-23 A. Sanz-Mora , A. Eisfeld , S. Wüster , J. -M. Rost

We present a new scheme of compact Rubidium cold-atom clock which performs the diffuse light cooling, the microwave interrogation and the detection of the clock signal in a cylindrical microwave cavity. The diffuse light is produced by the…

Atomic Physics · Physics 2015-12-09 Peng Liu , Yanling Meng , Jinyin Wan , Xiumei Wang , Yaning Wang , Ling Xiao , Huadong Cheng , Liang Liu

A novel two-stage helium buffer gas cooled beam source is introduced. The properties of the molecular beams produced from this source are investigated theoretically using the CaF as a test molecule. The gas-phase molecules are first…

Atomic Physics · Physics 2020-04-14 Vijay Singh

The motion of helium crystals has been experimentally studied when the crystals fall in the superfluid liquid owing to gravity at temperatures above the roughening transitions where the whole crystal surface is in the atomically rough…

Other Condensed Matter · Physics 2020-11-12 V. L. Tsymbalenko

Active energy compression scheme is presently being investigated for future laser-plasma accelerators. This method enables generating laser-plasma accelerator electron beams with a small, $\sim 10^{-5}$, relative slice energy spread. When…

Reaching light intensities above $10^{25}$ W/cm$^{2}$ and up to the Schwinger limit ($10^{29}$ W/cm$^{2}$) would enable testing decades-old fundamental predictions of Quantum Electrodynamics. A promising yet challenging approach to achieve…

Optics · Physics 2020-07-13 L. Chopineau , A. Denoeud , A. Leblanc , E. Porat , Ph. Martin , H. Vincenti , F. Quéré

Utilizing a silicon nanobeam optomechanical crystal, we investigate the attractor diagram arising from the radiation pressure interaction between a localized optical cavity at $\lambda = 1552$nm and a mechanical resonance at $\omega/2\pi =…

We realize a continuous guided beam of cold deuterated ammonia with a flux of 3e11 ND3 molecules/s and a continuous free-space beam of cold potassium with a flux of 1e16 K atoms/s. A novel feature of the buffer gas source used to produce…

Atomic Physics · Physics 2015-05-13 David Patterson , Julia Rasmussen , John M. Doyle

We present the first demonstration of an inertially sensitive atomic interferometer based on a continuous, rather than pulsed, atomic beam at sub-Doppler temperatures in three dimensions. We demonstrate 30\% fringe contrast in continuous,…

Atomic Physics · Physics 2022-02-24 J. M. Kwolek , A. T. Black

We demonstrate the fast accumulation of Cr atoms in a conservative potential from a magnetically guided atomic beam. Without laser cooling on a cycling transition, a single dissipative step realized by optical pumping allows to load atoms…

Quantum Gases · Physics 2015-05-27 Markus Falkenau , Valentin V. Volchkov , Jahn Rührig , Axel Griesmaier , Tilman Pfau

We have used an ultra-low threshold continuous-wave Optical Parametric Oscillator (OPO) to reduce the quantum fluctuations of the reflected pump beam below the shot noise limit. The OPO consisted of a triply resonant cavity containing a…

Quantum Physics · Physics 2007-05-23 K. S. Zhang , T. Coudreau , M. Martinelli , A. Maitre , C. Fabre

We report on the experimental realization of an atom optical device, that allows scanning of an atomic beam. We used a time-modulated evanescent wave field above a glass surface to diffract a continuous beam of metastable Neon atoms at…

Atomic Physics · Physics 2016-09-08 Hilmar Oberst , Shigenori Kasashima , Victor I. Balykin , Fujio Shimizu

The speed of longitudinal sound waves at 7 and 22 MHz has been measured in liquid, supecooled, and amorphous selenium, including the region around the glass transition temperature, Tg, near 35 C. In amorphous selenium the speed of shear…

Disordered Systems and Neural Networks · Physics 2007-05-23 W. B. Payne , J. K. Olson , A. Allen , V. F. Kozhevnikov , P. C. Taylor

The use of nanophotonics for optical manipulation has continuously attracted interest in both fundamental research and practical applications, due to its significantly enhanced capabilities at the nanoscale. In this work, we showed that…

We demonstrate experimentally the guiding of cold and slow ND3 molecules along a thin charged wire over a distance of ~0.34 m through an entire molecular beam apparatus. Trajectory simulations confirm that both linear and quadratic…

Atomic and Molecular Clusters · Physics 2011-12-19 M. Strebel , S. Spieler , F. Stienkemeier , M. Mudrich

A superintense laser pulse illuminating a thin solid-density foil can, in principle, accelerate the entire foil, therefore yielding dense, collimated, and quasi-monoenergetic ion beams. These unique features render radiation pressure…

Plasma Physics · Physics 2020-02-27 Maitreyi Sangal , Matteo Tamburini

We consider expansion, break off, and flight of 10 nm molybdenum film deposited onto glass support. These events are initiated by action of subpicosecond laser pulse onto film. Approximations for two-temperature equation of state and…

Mesoscale and Nanoscale Physics · Physics 2019-01-23 V A Khokhlov , Yu V Petrov , N A Inogamov , K P Migdal , J Winter , C Aichele , S Rapp , H P Huber
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