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An ultra-cold molecular plasma with extraordinarily long lifetime (~0.5 ms) is generated under strong collisional cooling conditions in the expansion region of a seeded supersonic jet expansion close to the nozzle. A resonant two-photon…

Quantum Gases · Physics 2010-04-06 Jingwei Guo , Mervash Varnasseri , Mikko Riese , Klaus Muller-Dethlefs

We present an experimental and simulation-based investigation of the temporal evolution of light emission from a thin, laser-ionized Helium plasma source. We demonstrate an analytic model to calculate the approximate scaling of the…

We report the first direct demonstration of possibility to generate the extreme ultraviolet (EUV) radiation with a freely expanding jet of dense plasma with multiply-charged ions supported by high-power microwaves. The detected emission…

We report the creation of an ultracold neutral plasma by photoionization of laser-cooled xenon atoms. The charge carrier density is as high as 2 x 10^9 cm^-3, and the temperatures of electrons and ions are as low as 100 mK and 10 uK,…

Plasma Physics · Physics 2009-10-31 T. C. Killian , S. Kulin , S. D. Bergeson , L. A. Orozco , C. Orzel , S. L. Rolston

We report the generation of MeV temperature electrons using sub-terawatt laser systems with a liquid methanol jet as a target. Remarkably, even at laser intensities of 1016W/cm2, liquid cylindrical (2D) 15 micron methanol jets produce…

We have constructed and modeled a simple and efficient source of slow atoms. From a background vapour loaded magneto-optical trap, a thin laser beam extracts a continuous jet of cold rubidium atoms. In this setup, the extraction column that…

Atomic Physics · Physics 2009-11-07 W. Wohlleben , F. Chevy , K. Madison , J. Dalibard

This brief communication reports a new method for generation of cold atmospheric pressure plasma jet at the downstream end of a flexible plastic tube. The device consists of a small chamber where dielectric barrier discharge (DBD) is…

Plasma Physics · Physics 2014-11-17 Konstantin G. Kostov , Munemasa Machida , Vadym Prysiazhnyi

We have developed a source of cold LiH molecules for Stark deceleration and trapping experiments. Lithium metal is ablated from a solid target into a supersonically expanding carrier gas. The translational, rotational and vibrational…

Atomic Physics · Physics 2009-11-13 S. K. Tokunaga , J. O. Stack , J. J. Hudson , B. E. Sauer , E. A. Hinds , M. R. Tarbutt

An experimental investigation on laser plasma acceleration of electrons has been carried out using 3 TW, 45 fs duration titanium sapphire laser pulse interaction with nitrogen gas jet at intensity of 2x10^18 W/cm^2. We have observed stable…

Plasma Physics · Physics 2018-06-25 B. S. Rao , A. Moorti , J. A. Chakera , P. A. Naik , P. D. Gupta

We present first results of astrophysically relevant experiments where highly supersonic plasma jets are generated via conically convergent flows. The convergent flows are created by electrodynamic acceleration of plasma in a conical array…

Heating a solid with laser-accelerated fast electrons is unique way for a laboratory experiment to generate a plane powerful shock wave with a pressure of several hundred or even thousands of Mbar. Behind the front of such a powerful shock…

Plasma Physics · Physics 2021-02-16 S. Yu. Gus'kov , P. A. Kuchugov , G. A. Vergunova

In this paper we demonstrate experimentally that crystalline phases appear in amorphous titanium oxide upon processing with ultrafast laser pulses. Amorphous titanium thin films were produced by plasma-enhanced chemical vapor deposition…

Here we present results from an experiment performed at the GSI Helmholtz Centre for Heavy Ion Research. A mono-energetic beam of chromium ions with initial energies of $\sim 450$ MeV was fired through a magnetized interaction region formed…

Experimentally measured characteristics of a kHz laser-driven Cu plasma X-ray source that was recently commissioned at ELI Beamlines facility are reported. The source can be driven either by an in-house developed high contrast sub-20 fs…

Localized plasma waves can be generated by suddenly ionizing extrinsic semiconductors with spatially periodic dopant densities. The built-in electrostatic potentials at the metallurgical junctions, combined with electron density ripples,…

Plasma Physics · Physics 2019-07-04 Kenan Qu , Nathaniel J. Fisch

Over the last decades, significant advances in high-power laser systems have enabled rapid progress in the development of laser-driven plasma accelerators. Today, the results obtained in beam stability and reproducibility present laser…

Accelerator Physics · Physics 2022-05-06 B. Farace , R. J. Shalloo , K. Põder , W. P. Leemans

Very hot plasmas with ion temperature exceeding $10^{10}$ K can be formed in certain astrophysical environments. The distinct radiation signature of such plasmas is the $\gamma$-ray emission dominated by the prompt de-excitation nuclear…

High Energy Astrophysical Phenomena · Physics 2019-03-29 Ervin Kafexhiu , Felix Aharonian , Maxim Barkov

Trapped atomic ions find wide applications ranging from precision measurement to quantum information science and quantum computing. Among the different atomic species employed, beryllium ions are widely used due to its light mass and…

Atomic Physics · Physics 2021-06-10 Qiming Wu , Melina Filzinger , Yue Shi , Zhihui Wang , Jiehang Zhang

An experimental setup that directly reproduces Extreme UV-lithography relevant conditions for detailed component exposure tests is described. The EUV setup includes a pulsed plasma radiation source, operating at 13.5 nm; a debris mitigation…

Plasma Physics · Physics 2015-06-18 A Dolgov , O Yakushev , A Abrikosov , E Snegirev , V M Krivtsun , C J Lee , F Bijkerk

Using an affordable ytterbium laser with sub-mJ of energy combined with a novel pulse compression technique, we demonstrate an extremely competitive state-of-the-art terahertz (THz) source with 53 mW of average power and 310 kV/cm at focus…

Optics · Physics 2022-05-25 L. Guiramand , J. E. Nkeck , X. Ropagnol , T. Ozaki , F. Blanchard