Nanoparticles may pose risk during laser ablation

July 2007
Laser Focus World;Jul2007, Vol. 43 Issue 7, p13
The article reports on the quantification of the amount of nanoparticles generated during femtosecond laser micromachining by scientists at Laser Zentrum Hannover in Germany. The scientists found that an 8000 nanometer femtosecond (fs) laser emitting pulses with a 150 fs duration at energies up to 1 millijoules. Toxicology studies needed yo adequately assess nanoparticle risk as the average output power increases for femtosecond lasers.


Related Articles

  • Double cladding allows linear output power scaling. Jungbluth, Eugene D. // Laser Focus World;May95, Vol. 31 Issue 5, p38 

    Reports on the development of a special fiber geometry at Laser Zentrum Hannover of Germany for a fiber laser that generated continuous-wave output. Use of double-clad fiber to convert multimode pump light from a high-power laser-diode array into bright laser radiation with good beam quality;...

  • Laser technology improves solar collectors.  // Electro Optics;Dec2009/Jan2010, Issue 203, p4 

    The article offers information on Lafuesol, a laser technology project between the Laser Zentrum Hannover and several industrial partners.

  • Monolithic single-frequency Yb:YAG laser emits 1 W at 1.03 μm. Brinkmann, Uwe; Burdack, Peer // Laser Focus World;Aug2006, Vol. 42 Issue 8, p42 

    The article describes enhancements to single-frequency laser systems made by scientists at Laser Zentrum Hannover and its spin-off company InnoLight in Germany. Their results led to the development of Nd:YAG laser systems used for the detection of gravitational waves and high-precision optical...

  • LZH researches environmental protection for laser processing.  // Electro Optics;Oct/Nov2009, Issue 202, p5 

    The article focuses on the research project being conducted by the Laser Zentrum Hannover (LZH) in Germany, which aims to record and provide data on the emissions produced during laser processing. The data obtained is believed to be beneficial in simplifying the planning and realisation of...

  • Photonics People.  // Electro Optics;Feb/Mar2010, Issue 204, p6 

    The article announces the appointments of Fredrik Arp as chairman and chief executive officer (CEO) of Qioptiq, Berthold Schmidt as CEO of Intense, and Professor Ludger Overmeyer as board member of Laser Zentrum Hannover.

  • EU micromachining project ends successfully. Marx, Bridget R. // Laser Focus World;May99, Vol. 35 Issue 5, p50 

    Focuses on the project cost-effective series and mass-production of high-precision microparts and optical structures in molds by laser submicron-machining (COMPOLA) funded under the European Union (EU) BRITE EURAM. Design of the project's workstations; Details on copper-vapor-laser development.

  • Dynamic temporal pulse shaping in advanced ultrafast laser material processing. Stoian, R.; Boyle, M.; Thoss, A.; Rosenfeld, A.; Korn, G.; Hertel, I.V. // Applied Physics A: Materials Science & Processing;2003, Vol. 77 Issue 2, p265 

    Phase-manipulated ultrafast laser pulses and temporally tailored pulse trains with THz repetition rates are promising new tools for quality micromachining of brittle dielectrics, allowing to adapt the laser energy delivery rate to the material properties for optimal processing. Different...

  • Laser Machining. Kearsley, Andrew // Medical Device Technology;Mar2003, Vol. 14 Issue 2, p18 

    Describes the different techniques for precision removal of material through laser micromachining. Overview of laser micromachining ablation process; Percussion drilling; Trepanning; Mask imaging; Biomedical applications for laser machining.

  • Tm3+ doped silicon thin film and waveguides for mid-infrared sources. Murray, Matthew; Toney Fernandez, T.; Richards, Billy; Jose, Gin; Jha, Animesh // Applied Physics Letters;10/1/2012, Vol. 101 Issue 14, p141107 

    A Tm3+ doped nanoparticulate silicon thin film and subsequent surface waveguides fully fabricated by using femtosecond (fs) pulsed laser are reported. The thin film exhibits strong room temperature fluorescence peaked at 2.04 μm when using an 808 nm diode laser. The fs-pulsed laser deposited...


Read the Article


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

Try another library?
Sign out of this library

Other Topics