Characterization of nonlinear optical parameters of copper‐ and silver‐doped silica glasses at λ = 1064 nm

Abstract

Investigations of nonlinear optical characteristics (nonlinear refractive indices, nonlinear absorption coefficients and third-order nonlinear susceptibilities) of copper and silver nanoparticles implanted in glasses are presented using picosecond Nd : YAG laser radiation (λ = 1064 nm) and the Z-scan technique. The variations of the sign of the nonlinear refractive indices depending on matrix properties are analyzed. It is shown that the nonlinear absorption in copper-doped glasses is due to the two-photon effect. The optical limiting properties of these materials are discussed in the framework of two-photon absorption.

Third-order nonlinear-optical parameters of gold nanoparticles in different matrices

“…Metal nanoparticle systems like metal-doped glasses or colloidal solutions are of considerable interest due to fast response time on laser excitation [1,2] and large value of the third-order nonlinear susceptibility, w (3) , responsible for Kerr effect [3][4][5][6]. Optical nonlinearities of gold nanoparticles were the subject of numbers of investigations during the past decade.…”

“…The role of surrounding matrix characteristics was also the subject of numerous studies. Thus, for example, water [7][8][9][10], silicate glass [3][4][5], BaTiO 3 [11], Al 2 O 3 [12,13], LiNbO 3 [14], TiO 2 [15] were applied for composite material optimization to obtain appropriate values of the nonlinear optical coefficients.…”

Self-Saturable Absorption and Reverse-Saturable Absorption Effects in Diamond-Like Carbon Films with Embedded Copper Nanoparticles

“…It should be mentioned that, in numerous studies, the transition from the saturable effect to the reverse-saturable effect was observed with increased light intensity [7,9,[16][17][18][19][20]. However, usually, high optical power density was necessary to achieve such a change.…”

Linear and Nonlinear Optical Properties of Silver Nanoparticles Synthesized in Dielectrics by Ion Implantation and Laser Annealing

“…Annealing in Ar at 500-900C, 1 h. Ishikawa et al, 2002, Tsuji et al 2002a, 2002b, 2003a, 2005a, 2005b, Arai et al, 2003 SiO 2 , 1998, 1999a, 1999b, 1999c, 2000a, 2000b, 2000c, 2001a, 2001b, 2001c, 2002b, 2002c, 2002b, 2003a, 2003b, 2003c, 2004a,2005b, 2008a, 2008b, 2009aHole et al 1999Ganeev at al. 2003a, 2003b,2004a, 2004c The range of high-dose implantation may be divided into two characteristic dose subranges. In the range 10 15 ≤ ~F 0 ≤ 10 17 ion/cm 2 , the concentration of Ag ions exceeds the solubility limit of metal atoms in matrices and the system relaxes by nucleation and growth of MNPs (Fig.…”