Abstract
Femtosecond laser-induced spatial redistribution of silver species (ions, clusters, and hole centers) in a silver-containing phosphate glass is investigated by correlative means of near-field scanning optical microscopy (NSOM) images, numerical simulations, chemical micro-probe analysis, and nanoscale spatial profiles after soft etching. In particular, we found that the chemical etching selectivity for nanoscale patterning is strongly dependent upon the irradiation of femtosecond laser due to the spatial redistribution of silver species within the affected area. These results strongly indicate that controlling the distribution of silver species by femtosecond laser irradiation may open new routes for surface nanoscale chemical and/or spatial patterning for the fabrication of 2D surface photonic crystals.
Highlights
Femtosecond laser modification technology of materials has made tremendous progress over the past decade, to access a large panel of applications that require special optical, physical and/or chemical properties associated with integrated bulk or surface functionalities [1]
We present the correlative description of fs laser-induced spatial redistribution of silver species of our photosensitive silver-containing phosphate glasses, based on near-field scanning optical microscopy (NSOM) images, chemical micro-probe analysis, spatial profile after soft etching, and numerical simulations of the silver species redistribution
To confocal fluorescent imaging, NSOM shows the clear annular distribution of silver clusters, the larger fluorescence pedestal coming from the concomitant excitation and fluorescence collection from planes below surface
Summary
Femtosecond (fs) laser modification technology of materials has made tremendous progress over the past decade, to access a large panel of applications that require special optical, physical and/or chemical properties associated with integrated bulk or surface functionalities [1]. We present the correlative description of fs laser-induced spatial redistribution of silver species of our photosensitive silver-containing phosphate glasses, based on near-field scanning optical microscopy (NSOM) images, chemical micro-probe analysis, spatial profile after soft etching, and numerical simulations of the silver species redistribution.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
