Micro-modification of luminescence property in Ag+-doped phosphate glass using femtosecond laser irradiation

Femtosecond laser induced phenomena in transparent solid materials: Fundamentals and applications

“…Whereas, PbO accelerates the formation and growth of Au NPs during the annealing process [186,187], and hence, improves much the nonlinear absorption of the metal NPs containing glass [188]. The refractive index of the metal NPs depositing glass varies with annealing temperature because of the formation of color centers and the presence of metal NPs [185,[189][190][191][192]. This is contrast to unirradiated ones.…”

Structural features of silver-doped phosphate glasses in zone of femtosecond laser-induced modification

“…Table 1 shows more complete information about structure units of experimental samples. Identification of spectral data was made accordingly to [10,[12][13][14][15][16][17][18][19][20][21][22][23][24][25]. …”

“…The successful experiments on fs laser writing of metal nanoparticles were carried out mainly for multicomponent silicate glasses with alkali metals and low containing of transition metal oxide [2,6,7]. Other possible matrixes for laser-induced metal NPs formation are zinc-phosphate glasses [5,9], aluminum-sodium-phosphate glasses [10,11]. The continued interest to direct laser formation of metallic NPs in glasses of various compositions is determined by plasmonic properties of the forming NPs that allows creation of highly efficient sensing devices for photonics and metamaterials applications.…”

Single‐Pulse‐Induced Ultrafast Spatial Clustering of Metal in Glass: Fine Tunability and Application

“…Furthermore, in previous studies, multipulse irradiation with a high repetition rate or accompanied by thermal treatment was necessary because the thermal activation of Ag species was proposed to be critical for creating stable clusters in phosphate glass. [ 14,21–23,27,32,33 ] As a result, clustering occurs in a time range longer than a few microseconds. [ 21 ] In our case, stable Ag clusters were produced by one pulse without thermal activation, implying that ultrafast clustering in glass was induced.…”

“…For example, thousands of pulses were usually required to create stable luminescent clusters in glass with thermal activation assistance, and subsequent thermal annealing was frequently adopted. [ 10–13,21–23 ] Single‐pulse, ultrafast, high‐resolution UFL micromachining possessing exact controllability is in demand not only for scientific research, but also for technological purposes. Generally, the short pulse duration in the range from several picoseconds to femtoseconds gives rise to ultrahigh power density and rapid energy deposition inside a focal volume when a laser beam is focused into a material.…”