skip to main content

Title: Physical origin of nanograting formation on fused silica with femtosecond pulses

We present a comprehensive analysis of physical evolution of nanograting formation based on an experiment performed with femtosecond pulses focused under moderate focusing conditions and where pulse energy is slowly increased as the focused beam is moved along the sample surface. The results demonstrate that nanograting inscription is initiated at the location of the maximum plasma density and evolves through local intensity side lobes, whose locations are self-regulated in a closed feedback loop, in agreement with the plasmonic model.
Authors:
;  [1]
  1. Centre d'Optique, Photonique et Laser (COPL), Université Laval, Québec, Québec G1V 0A6 (Canada)
Publication Date:
OSTI Identifier:
22350789
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 13; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; EVOLUTION; FEEDBACK; FOCUSING; LASER RADIATION; PLASMA DENSITY; PULSES; SILICA; SIMULATION; SURFACES