Au⁺-Ion-Implanted Silica Glass with Non-Linear Optical Property

Abstract

Au+ ions have been implanted in silica glass at an acceleration energy of 1.5 MeV and a fluence level of 1017 ions/cm2. The Au ions form colloid particles with the radius of 2.9 nm after heat treatment. The glass with Au colloid particles shows the large third order non-linear susceptibility; χ(3)=1.2×10-7 esu. The large χ(3) value of the glass is attributed to the high concentration of Au colloid particles in the narrow region.

Surface Plasmon Resonance Tunability in Au−VO2 Thermochromic Nano-composites

“…Therefore, at this optical frequency p, (3) eff( ) of the nano-composite can overtake giant values as a result of the enhancement reinforced by the power 4 of the form factor f( ) compared to those found in classical bulk materials. Degenerate four-wave mixing as well as Z-scan measurements in Ag and Au as well as Cu based nanocomposites consistently revealed the colossal third order nonlinear optical susceptibilities (3) eff( ) of about 10 -7 -10 -9 esu in the vicinity of the surface plasmon resonance, with response times of the order of picoseconds, Table 1, (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32). This enhanced (3) eff( ) offered by this new class of nanocomposites is opening new perspectives in emerging nanophotonics sector.…”

Silver nanowires as a result of irradiation or hydrogen reduction of Ag3PW12O40 salt

“…[3] Metal nanowires can be produced by controlled chemical reduction, photochemical or gas evaporation. [4,5] Recently, different template methods have been well developed for the preparation of the metal nanowires. [6] Apart from these techniques, several 'wet' chemical methods forming silver nanowires have been also used, namely, ultraviolet irradiated photo reduction, [7] pulse sono-electrochemical method and solid-liquid-phase arc discharge.…”

Incorporation of Highly Dispersed Gold Nanoparticles into the Pore Channels of Mesoporous Silica Thin Films and their Ultrafast Nonlinear Optical Response

“…[1] However, the fabrication of these kinds of composite films remains unsatisfactory, largely due to the difficulties in achieving a high enough metal content by the conventional melt-quenching method. [2] Although a wide variety of alternative routes, such as ion implantation, [3] sputtering, [4] and the sol±gel process [5] have been used to solve these difficulties, the embedded metal nanomaterials usually suffer from a comparatively wide size distribution and a considerable agglomeration, especially during high-temperature treatment. The synthesis of high-quality composite films with a high content of highly dispersed, uniformly distributed, metallic nanoparticles is still a great challenge.…”