Open AccessNanofibre fabrication by femtosecond laser ablation of silica glass
Author(s) -
Krishnan Venkatakrishnan,
Dheeraj Vipparty,
Bo Tan
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.015770
Subject(s) - femtosecond , materials science , fabrication , nanometre , optics , laser , ablation , laser ablation , silica glass , optoelectronics , composite material , medicine , physics , alternative medicine , engineering , pathology , aerospace engineering
This article presents a fabrication technique for generating densely populated and randomly oriented silica nanofibres by direct ablation of silica glass using a femtosecond laser with 12.4 MHz repetition rate and a pulse width of 214 fs, under ambient conditions. Four types of nanofibres with diameters ranging from a few tens of nanometers to a few hundreds of nanometers were formed. Some fibers reach lengths of 10 mm. The possible mechanisms for fibre formation have been explored.