TITLE

Low-threshold ablation of dielectrics irradiated by picosecond soft x-ray laser pulses

AUTHOR(S)
Faenov, A. Ya.; Inogamov, N. A.; Zhakhovskii, V. V.; Khokhlov, V. A.; Nishihara, K.; Kato, Y.; Tanaka, M.; Pikuz, T. A.; Kishimoto, M.; Ishino, M.; Nishikino, M.; Nakamura, T.; Fukuda, Y.; Bulanov, S. V.; Kawachi, T.
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/8/2009, Vol. 94 Issue 23, p231107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ablation of LiF crystal by soft x-ray laser (XRL) pulses with wavelength λ=13.9 nm and duration TL=7 ps is studied experimentally and theoretically. It is found that a crater appears on a surface of LiF for XRL fluence, exceeding the ablation threshold Fa∼10.2 mJ/cm2 in one shot, or 5 mJ/cm2 in each of the three XRL shots. This is substantially below the ablation thresholds obtained with other lasers having longer pulse duration and/or longer wavelength. A mechanism of thermomechanical ablation in large bandgap dielectrics is proposed. The theory explains the low Fa via small attenuation depth, absence of light reflection, and electron heat conductivity.
ACCESSION #
41573103

 

Related Articles

  • Broad wavelength tunability from external cavity quantum-dot mode-locked laser. Nikitichev, D. I.; Fedorova, K. A.; Ding, Y.; Alhazime, A.; Able, A.; Kaenders, W.; Krestnikov, I.; Livshits, D.; Rafailov, E. U. // Applied Physics Letters;9/17/2012, Vol. 101 Issue 12, p121107 

    Broadband wavelength tunability over 136 nm (between 1182.5 nm and 1319 nm) of picosecond pulses in passive mode-locked regime is demonstrated in a multi-section quantum-dot laser in external cavity configuration at room temperature. The maximum peak power of 870 mW with 15 ps pulse duration was...

  • Recent Developments in Experimental Techniques for Measuring Two Pulses Simultaneously. Tsz Chun Wong; Trebino, Rick // Applied Sciences (2076-3417);Mar2013, Vol. 3 Issue 1, p299 

    As many high-intensity ultrafast-optical measurements involve more than one pulse-typically one to excite a medium under study and another to probe it--a technique for measuring two pulses simultaneously is highly desirable. In two decades, two-pulse measurement techniques have advanced from...

  • Generation of solid-density ultraintense ion beams by a picosecond laser pulse of circular polarization. Jablonski, S.; Badziak, J. // Review of Scientific Instruments;Feb2012, Vol. 83 Issue 2, p02B105 

    This contribution reports particle-in-cell numerical studies of deuteron beam acceleration by a picosecond laser pulse of circular polarization. The effect of laser wavelength λ and the ILλ2 product (IL is laser intensity) on the ion beam parameters is investigated. It is shown that at the...

  • Diffraction of laser-plasma-generated electron pulses. Fill, E. E.; Trushin, S.; Bruch, R.; Tommasini, R. // Applied Physics B: Lasers & Optics;Jul2005 Part 2, Vol. 81 Issue 2/3, p155 

    We report the observation of the Debye–Scherrer diffraction using electron pulses emitted from a fs-laser plasma. Titanium sapphire laser pulses with 1.6 mJ/45 fs at 1 kHz are focused on a moving steel tape at close to normal incidence. The laser plasma generated ejects a large number of...

  • Chirped pulse shadowgraphy for single shot time resolved plasma expansion measurements. Prasad, Y. B. S. R.; Barnwal, S.; Naik, P. A.; Chakera, J. A.; Khan, R. A.; Gupta, P. D. // Applied Physics Letters;5/31/2010, Vol. 96 Issue 22, p221503 

    The dynamics of ultrashort laser plasmas demand single shot temporal measurements on fast time scales. We describe a method to record the plasma expansion on picosecond (ps) timescales continuously over hundreds of ps, in single shot. The method uses the chirp of a Ti:sapphire laser as a...

  • Coherent Control of Extreme Nonlinear Optical Properties of Quantum System via Ultrashort Laser Pulses. Shangqing Gong; Keyu Xia; Yueping Niu // AIP Conference Proceedings;12/26/2007, Vol. 963 Issue 2, p768 

    We investigate the extreme nonlinear optical properties of quantum system driven by ultrashort laser pulses by solving the one and two dimensional, full-wave Maxwell-Bloch coupled equations. We find that the near-dipole-dipole (NDD) interactions have a crucial influence on the absolute phase of...

  • Picosecond fiber laser targets pulsed laser deposition. Jones-Bey, Hassaun A. // Laser Focus World;Jul2006, Vol. 42 Issue 7, p40 

    The article presents information about picosecond fiber laser. The ultrashort-pulsed-laser deposition performed with fiber lasers is one of the potential applications for emerging fiber-laser technology. Unlike the conventional materials-processing lasers, the amplified ultrashort pulses form...

  • Fast electronic and thermal processes in femtosecond laser ablation of Au. Dachraoui, Hatem; Husinsky, Wolfgang // Applied Physics Letters;9/4/2006, Vol. 89 Issue 10, p104102 

    Velocity distribution, pulse width dependence studies, and two-pulse correlation measurements have been used to study the possibility of the occurrence of ultrafast electronic and thermal ablation processes in Au exposed to ultrashort laser pulses in the femtosecond to picosecond time domain....

  • Generation of subpicosecond solitonlike optical pulses at 0.3 THz repetition rate by induced modulational instability. Tai, K.; Tomita, A.; Jewell, J. L.; Hasegawa, A. // Applied Physics Letters;8/4/1986, Vol. 49 Issue 5, p236 

    We report the generation of 0.5 ps full width at half-maximum optical pulses at >0.3 THz (tunable) repetition rate via an induced modulational instability in a single-mode fiber. A 1.319-μm neodymium:yttrium aluminum garnet laser is chosen as the carrier wave and the initial modulation on...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics