4 papers
Tilted black-Si: ~0.45 form-birefringence from sub-wavelength needles
Darius Gailevicius, Meguya Ryu, Reo Honda +14
The self-organised conical needles produced by plasma etching of silicon (Si), known as black silicon (b-Si), create a form-birefringent surface texture when etching of Si orientat…
Photonic Crystal Spatial Filters Fabricated by Femtosecond Pulsed Bessel Beam
Darius Gailevičius, Vytautas Purlys, Kestutis Staliunas
We propose and experimentally demonstrate femtosecond direct laser writing with Bessel beams for the fabrication of photonic crystals with spatial filtering functionality. Such fil…
Photonic crystal spatial filtering in broad aperture diode laser
Sandeep Gawali, Darius Gailevičius, Guillermo Gerre-Werner +5
Broad aperture semiconductor lasers usually suffer from low spatial quality of the emitted beams. Due to the highly compact character of such lasers the use of a conventional intra…
Nanoscale precision of 3D polymerisation via polarisation control
Sima Rekstyte, Tomas Jonavicius, Darius Gailevicius +4
A systematic analysis of polarization effects in a direct write femtosecond laser 3D lithography is presented. It is newly shown that coupling between linear polarization of the wr…