Full text loading...
Optical setups: (a) the photothermal laser writing and (b) in–situ MZI.
Optical absorption spectra of (a) -doped and (b) undoped tin(II) silicophosphate glasses.
In situ MZI during laser irradiation (MO: , , irradiation time: ). The laser power was less than the fabrication threshold of the persistent structures. The inset shows the log-log relationship between the laser power and the phase shift.
(Color online) Optical microscope images of fabricated structures: (a) line (, MO: , , irradiation time: ), (b) dot (, MO: , , irradiation time: ), (c) phase gratings (ten lines were fabricated at intervals, each line was written by , MO: , , irradiation time: ) and inset shows the diffraction image of the He–Ne laser light by the grating, and (d) array of voids (, MO: , , laser beam was scanning at ).
(a) Cross-sectional distribution of phase shift for the line structure shown in Fig. 3(a) and (b) schematic illustration of photothermal process taking place in the doped media.
Article metrics loading...