Search results for: ULTRAFAST LASER

• Photophysics of Soret-Excited Tin(IV) Porphyrins in Solution

  Publication

  • K. P. Ghiggino
  • N. K. Giri
  • J. Hanrieder
  • J. D. Martell
  • J. Muller
  • M. F. Paige
  • B. Robotham
  • J. Szmytkowski
  • R. P. Steer

  - JOURNAL OF PHYSICAL CHEMISTRY A - Year 2013

  The photophysics of low-chlorin tin(IV) tetraphenylporphyrin dihydroxide, a core building block for axially substituted supramolecular tin porphyrin constructs, has been studied in a variety of hydrogen-bonding, nonpolar, and aprotic polar solvents using steady-state, nanosecond, and femtosecond time-resolved emission, and femtosecond time-resolved absorption methods. In hydrogen-bonding solvents the metalloporphyrin exists as...

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• A prototype femtosecond laser system for MEMS fabrication

  Publication

  • K. Garasz
  • M. Kocik
  • R. Barbucha
  • M. Tański
  • J. Mizeraczyk
  • M. Nejbauer
  • C. Radzewicz

  - Year 2013

  n this article, the concept of a prototype femtosecond laser micromachining system and a femtosecond solid-state Yb:KYW laser is presented. Ultrashort laser pulses have many advantages over the long pulses in laser micromachining, due to their unique ability to interact with different materials without transferring heat to them. This allows very precise and pure laser-processing, clean cuts and sharp edges. A femtosecond laser...