Figure 2
From: Shrinkable silver diffraction grating fabricated inside a hydrogel using 522-nm femtosecond laser
Silver line structures fabricated inside the hydrogel under different experimental conditions: (a) Bright-field microscope image of silver line structures fabricated with different scanning speeds of up to 800 μm/s. The laser power was 16.5 mW. A 10× (NA: 0.45) magnification microscope objective was used for obtaining the image. (b) Dependence of line widths of the silver microstructures on the scanning speed derived from the gray values of the microscope images obtained with a 60× (NA: 0.95) magnification microscope objective. The laser power was 16.5 mW. (c) Dependence of the line widths of the silver microstructures on laser power derived from gray values of the microscope images obtained with a 60× (NA: 0.95) magnification microscope objective. The scanning speed was 200 μm/s.
