Femtosecond laser micro-patterning of optical properties and functionalities in novel photosensitive silver-containing fluorophosphate glasses

Abstract

Silver-containing glasses are promising candidates for photonic applications, due to the potentiality of spectroscopic properties of silver nanoclusters (NC's) and/or silver metallic nanoparticles. In this framework, silvercontaining fluorophosphate glasses are candidates with a strong potential.

Direct Laser Writing of Fluorescent Silver Nanoclusters: A Review of Methods and Applications

“…These structures can withstand annealed processes from 100 to 350 °C for 3 h compared to the current standard for data storage of 80 °C . Laser-written AgNCs@glass have also been used for the fabrication of super-resolved nanostructures, optical grating, optical switching, micropolarizer, filter, ring resonator, and interferometer (Figure J), display, optical recording/erasing, waveguide, volume holography, frequency converter, and photowritable glass fibers (Figure K). ,,,,, The fabricated structures are highly stable and show outstanding tolerance against temperature, aging, and humidity. ,,, Structures show superior photostability because they do not loose fluorescence even after continuous irradiation of blue light (intensity 100 kW/cm 2 ) for hours.…”

Laser Direct Writing of Silver Clusters‐Based Subwavelength Periodic Structures Embedded in Mid‐Infrared Gallo‐Germanate Glass

“…To the best of our knowledge, this is the first time that remobilization of the silver reservoir is used to develop periodic structures. As discussed by de Castro et al, [ 68 ] the capability to remobilize the silver reservoir was believed to originate from the presence of highly co‐mobile ions such as fluorine and alkaline ions in silver‐doped oxyfluoride phosphate glasses. In our work, we have shown that the presence of barium ions, in majority in contrast to the potassium, promotes the remobilization of the silver reservoir.…”

The influence of potassium substitution for barium on the structure and property of silver-doped germano-gallate glasses

“…Indeed, the strong luminescence in silver containing glasses is related to the presence of silver species (32,33). The luminescence of silver entities such as isolated ions, pairs and clusters have been widely studied in various glass and in particular in phosphate glass compositions (19,(32)(33)(34)(35)(36). It has been demonstrated that the luminescence of silver ions and silver cluster can lead to broad emission in the whole visible range for main excitation bands located between 200 nm to 400 nm depending on the silver species.…”