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Title: On the possibility of controlling laser ablation by tightly focused femtosecond radiation

We report the results of studies on the possibilities of controlling laser ablation by changing the polarisation state and the intensity distribution in the focal plane of the beams of high-power femtosecond radiation by means of beam diaphragming and controllable phase modulation using binary-phase plates. The latter provides the adjustment of correlation between the electric field components in the focus area. Based on the results of numerical modelling of the distribution of the electric field components in the focus area, an explanation of the mechanism of formation of the unusually shaped craters is given. (interaction of laser radiation with matter. laser plasma)
Authors:
; ; ; ;  [1] ; ; ;  [2]
  1. Image Processing Systems Institute, Russian Academy of Sciences, Samara (Russian Federation)
  2. International Laser Center, M. V. Lomonosov Moscow State University, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22373340
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 44; Journal Issue: 11; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ABLATION; ELECTRIC FIELDS; LASER RADIATION; LASERS; PLASMA; POLARIZATION; SIMULATION