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Electronic devices are progressively fabricated on flexible substrates allowing new fields of applications. A maskless and very flexible structuring process is offered by ablation using ultra-short pulse laser irradiation. Usually, certain…

Applied Physics · Physics 2020-12-02 Chresten von der Heide , Maria Grein , Günther Bräuer , Andreas Dietzel

A simple and convenient procedure for single-shot, single-spot ablation threshold measurement has been developed. It is based on the employment of cylindrical lens to obtain elliptical Gaussian laser spot. The ablated spot chords which are…

We model an interaction of femtosecond laser pulses (800 nm, 100 fs, 1-100 TW/cm$^2$) with metal targets (Al, Au, Cu, and Ni). A detailed analysis of laser-induced phase transitions, melting wave propagation and material decomposition is…

Computational Physics · Physics 2014-11-11 Mikhail E. Povarnitsyn , Pavel R. Levashov , Konstantin V. Khishchenko

We describe rapid, random-access loading of a two-dimensional (2D) surface-electrode ion-trap array based on two crossed photo-ionization laser beams. With the use of a continuous flux of pre-cooled neutral atoms from a remotely-located…

Atomic Physics · Physics 2016-11-03 C. D. Bruzewicz , R. McConnell , J. Chiaverini , J. M. Sage

We investigate ablation experiments performed by laser-plasma-filament guided electrical discharges at high-voltages of up to 145 kV. The guiding was accomplished via fs-laser-generated plasma filaments across a gap of 201 mm of air onto…

Plasma Physics · Physics 2025-11-20 Kristian Cvecek , Markus Döring , Alexander Romboy , Johannes Heberle , Michael Schmidt

We describe a complete development process of a segmented-blade linear ion trap. Alumina substrate is characterized with an X-ray diffraction and loss-tangent measurement. The blade is laser-micromachined and polished, followed by the…

We propose a feedback-assisted direct laser writing method to perform laser ablation of fiber optics devices in which their light-collection signal is used to optimize their properties. A femtosecond-pulsed laser beam is used to ablate a…

Control over the properties of nanoparticles obtained by laser ablation in liquids is experimentally demonstrated via modulation of the beam intensity profile on the target. Mask projection scheme was used with either a copper laser…

Mesoscale and Nanoscale Physics · Physics 2009-07-08 P. G. Kuzmin , G. A. Shafeev

We produce large numbers of low-energy ions by photoionization of laser-cooled atoms inside a surface-electrode-based Paul trap. The isotope-selective trap loading rate of $4\times10^{5}$ Yb$^{+}$ ions/s exceeds that attained by…

Atomic Physics · Physics 2009-11-13 Marko Cetina , Andrew Grier , Jonathan Campbell , Isaac Chuang , Vladan Vuletic

Using a modified self-consistent one-dimensional hydrodynamic lagrangian fluid code, laser ablation of solid copper by ultrashort laser pulses in vacuum was simulated to study fundamental mechanisms and to provide a guide for drilling…

Plasma Physics · Physics 2011-07-20 PengJi Ding , BiTao Hu , YuHong Li

A frequency-stable, broadband laser is presented for experiments on trapped ions. Since the design is based on widely available semiconductor optical amplifier technology, similar lasers can be realized for virtually any wavelength in the…

Atomic Physics · Physics 2019-02-20 T. Fordell , T. Lindvall

Laser-induced water ablation triggers various physical effects, including atom ionization, optical breakdown of the liquid, phase explosion, cavitation, and shockwave propagation. These effects can be further amplified in heavy water by…

Plasma Physics · Physics 2024-09-06 Denys Moskal , Jiri Martan , Vladislav Lang , Milan Honner

Compact and robust ion traps for thorium are enabling technology for the next generation of atomic clocks based on a low-energy isomeric transition in the thorium-229 nucleus. We aim at a laser ablation loading of single triply ionized…

Atomic Physics · Physics 2020-08-14 Marcin Piotrowski , Jordan Scarabel , Mirko Lobino , Erik Streed , Stephen Gensemer

Short laser pulse in wide range of wavelengths, from infrared to X-ray, disturbs electron-ion equilibrium and rises pressure in a heated layer. The case where pulse duration $\tau_L$ is shorter than acoustic relaxation time $t_s$ is…

We have investigated the all-optical generation of ions by photo-ionisation of atoms generated by pulsed laser ablation. A direct comparison between a resistively heated oven source and pulsed laser ablation is reported. Pulsed laser…

Atomic Physics · Physics 2011-06-14 Kevin Sheridan , Wolfgang Lange , Matthias Keller

Ablation of Cu and Al targets has been performed with 170 fs laser pulses in the intensity range of 10^12-10^14 W/cm^2. We compare the measured removal depth with 1D hydrodynamic simulations. The electron-ion temperature decoupling is taken…

Other Condensed Matter · Physics 2007-05-23 Jean-Philippe Colombier , Patrick Combis , Florian Bonneau , Ronan Le Harzic , Eric Audouard

We provide measurements of ablation of four post-transition and transition metals (aluminum, copper, nickel and tungsten) irradiated by single 800 nm laser pulses, in ultrashort regime from 100 fs pulse duration down to 15 fs covering a…

Optics · Physics 2020-11-02 Thibault Genieys , Marc Sentis , Olivier Utéza

Like many optoelectronics, the highest quality III-V solar cells start out as thin single-crystalline multilayers on GaAs substrates. Separating these device layers from their growth substrate enables higher performing devices and wafer…

Selective thin-film removal is needed in many microfabrication processes such as 3-D patterning of optoelectronic devices and localized repairing of integrated circuits. Various wet or dry etching methods are available, but laser machining…

The first ionization potential of neutral atoms is determined from thresholds of laser-induced optical breakdown. Bulk material ablation plasma of aluminum, silver, lead, indium and copper is created in laboratory air with focused, 5-ns…

Atomic Physics · Physics 2016-12-22 Ahsraf M. EL Sherbini , Mohamed M. EL Faham , Christian G. Parigger