Ablating nanoscale pores in crystalline quartz using laser-induced micro-plasmas in tri-layer structures:Optical Materials Express

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Autor/in:
Erscheinungsjahr:
2020
Medientyp:
Text
Schlagworte:
  • Atomic force microscopy
  • Excimer lasers
  • Laser ablation
  • Laser light
  • Nanopositioning equipment
  • Ultraviolet radiation
Beschreibung:
  • We demonstrate a novel approach for achieving rapid, consistent, and controllable micro-pore fabrication in single-crystalline quartz. These micro-pores are essential for applications in biology, i.e., studying ion channels in general and mechano-sensitive channels (MSC) in particular. The fabrication process consists of direct material ablation using pulsed UV light from a 193 nm excimer laser. These pulses ablate single-crystalline quartz chips by burning a laser-induced plasma in a tri-layer structure. Controllable plasma confinement and thus pore size is achieved by sandwiching a thin layer of a selected organic solution between the quartz chip and different substrates. This solution causes the confined micro-plasma to generate special ablation conditions, to create uniformly sized and shaped nanopores.
Lizenz:
  • info:eu-repo/semantics/openAccess
Quellsystem:
Forschungsinformationssystem der UHH

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