Self-organized nanogratings in glass irradiated by ultrashort light pulses.

Functional Birefringent Elements Imprinted by Femtosecond Laser Nanostructuring of Multi-Component Glass

A decade ago, a new type of self-organization process was observed in the bulk of SiO2 glass after irradiation with ultrashort laser pulses [1]. Under certain irradiation conditions, highly ordered nanostructures with features smaller than 20 nm could be formed in the irradiated volume. The sub-wavelength arrangement of these structures results in form birefringence, which was recently exploite...

Void-nanograting transition by ultrashort laser pulse irradiation in silica glass.

The structural evolution from void modification to self-assembled nanogratings in fused silica is observed for moderate (NA > 0.4) focusing conditions. Void formation, appears before the geometrical focus after the initial few pulses and after subsequent irradiation, nanogratings gradually occur at the top of the induced structures. Nonlinear Schrödinger equation based simulations are conducted...

Formation mechanism of self-organized nanogratings on a titanium surface using femtosecond laser pulses

Comparison of the structural and chemical composition of two unique micro/nanostructures produced by femtosecond laser interactions on nickel

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Formation Mechanism of Nanostructures on the Stainless Steel Surface by Femtosecond Laser Pulses

In this paper, we report on the formation of a variety of micro/nano-metric structures on the stainless steel surfaces by single-beam direct femtosecond laser writing. Periodic microgratings of different line widths and period are fabricated on the sample surfaces. Random nanostructures are observed inside the microgratings, when laser pulses with low laser energies are applied on the samples. ...