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Title: Polarization sensitive anisotropic structuring of silicon by ultrashort light pulses

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4928043· OSTI ID:22486370
; ; ;  [1]
  1. Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ (United Kingdom)

Imprinting of anisotropic structures on the silicon surface by double pulse femtosecond laser irradiation is demonstrated. The origin of the polarization-induced anisotropy is explained in terms of interaction of linearly polarized second pulse with the wavelength-sized symmetric crater-shaped structure generated by the linearly polarized first pulse. A wavefront sensor is fabricated by imprinting an array of micro-craters. Polarization controlled anisotropy of the structures can be also explored for data storage applications.

OSTI ID:
22486370
Journal Information:
Applied Physics Letters, Vol. 107, Issue 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English