Femtosecond‐laser micromachining (also known as inscription or writing) has been
developed as one of the most efficient techniques for direct three‐dimensional …

Since the discovery that tightly focused femtosecond laser pulses can induce a highly
localised and permanent refractive index modification in a large number of transparent …

Here, single-mode waveguides are written in silica glass by femtosecond (fs) laser. The
waveguides exhibit a low propagation loss of 0.15 dB/cm and a symmetrical mode field. The …

Use of high numerical aperture focusing with negative longitudinal spherical aberration is
shown to enable deep (> 10 μm), high aspect ratio, nano-scale-width holes to be machined …

The combination of ultrafast laser inscription and engineered soft glasses is enabling a new
class of photonic devices offering long wavelength transparency, high nonlinearity, and …

Femtosecond laser-induced plasmas in bulk dielectrics are imaged under waveguide writing
conditions, for different polarizations, pulse durations, and processing depths, and their …

We report on the fabrication of the dual-line waveguides and cladding waveguide in z-cut
MgO: LiNbO 3 crystal by femtosecond laser inscription. Due to the diverse modification of …

High throughput and low cost fabrication techniques in the sub-micrometer scale are
attractive for the industry. Laser interference lithography (LIL) is a promising technique that …

We investigated refractive index induced by direct femtosecond laser writing inside fused
silica and Nd: phosphate glass in heat accumulation regime. Spatial profile and magnitude …

Optical waveguides fabricated in potassium dihydrogen phosphate (KDP) by ultrafast laser
pulses are demonstrated. Dependent on the incident pulse energy, two different types of …