Doubled Birefringence
Ultrafast laser direct writing with elliptical polarization in silica glass yields about twice the form birefringence and higher density of anisotropic nanopores than linearly polarized light.
Lei, Yuhao · Shayeganrad, Gholamreza · Wang, Huijun · Sakakura, Masaaki · Yu, Yanhao · Wang, Lei · Skuja, Linards · Svirko, Yuri P. · Kazansky, Peter G.
Light: Science and Applications 2023
Nonlinear absorption about 2.5 times weaker than linearly polarized light
Higher concentration of anisotropic nanopores