Each 5 m size pixel was written with the 0.2 mm/s translation speed. To demonstrate the application of the laser assisted nanostructuring of a-Si:H, we imprinted Einstein’s portrait (250 250 pixels) by encoding grayscale information via the laser beam’s polarization (Fig. Both dichroism and differential phase-shift peaks in at 510 – 540 nm wavelength enabling practical applications in the visible part of the spectrum. These values are two orders higher in comparison with the typical birefringence measured in the femtosecond laser nanostructured silica glass (-2 10 -3 – -5 10 -3 ). The highest retardance value gives n(546nm) - 0.5 – -0.6. d is thickness of laser modified a-Si:H film (300 nm).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |