Third-order optical nonlinearities of Ag nanoparticles fabricated by two-step ion exchange in glass

We present third-order optical nonlinearities of Ag nanoparticles fabricated using a two-step ion exchange method. The nonlinearities are studied using the well-known Z-scan technique. In our experiments, we use a Ti-Sapphire laser source operating at 800 nm, which is far from the resonance of the Ag nanoparticles. The nonlinear refraction of these nanoparticles is studied using the closed aperture configuration of the Z-scan method. Contrary to expectations from previous studies for similar-sized nanoparticles, our nanoparticles possess positive nonlinear refractive index. The estimated nonlinear refractive indices are in the range of 10-12 cm2/W.

[1]  Paolo Mazzoldi,et al.  Silver nanocrystals in silica by sol-gel processing , 1996 .

[2]  E. W. Stryland,et al.  High-sensitivity, single-beam n(2) measurements. , 1989, Optics letters.

[3]  G. Battaglin,et al.  Silver nanoclusters formation in ion-exchanged waveguides by annealing in hydrogen atmosphere , 1996 .

[4]  G. W. Arnold,et al.  Interaction of high‐power laser light with silver nanocluster composite glasses , 1996 .

[5]  M. Baba,et al.  Characterization of optical and nonlinear optical properties of silver nanoparticles prepared by laser ablation in various liquids , 2004 .

[6]  Xiuchun Yang,et al.  X-ray absorption spectroscopy analysis of formation and structure of Ag nanoparticles in soda-lime silicate glass , 2003 .

[7]  Hari Singh Nalwa,et al.  Handbook of nanostructured materials and nanotechnology , 2000 .

[8]  S. Thiel,et al.  Synthesis of nanosized silver particles in ion-exchanged glass by electron beam irradiation , 1997 .

[9]  L. Boatner,et al.  Nanocomposites formed by ion implantation: Recent developments and future opportunities , 2001 .

[10]  E. W. Stryland,et al.  Sensitive Measurement of Optical Nonlinearities Using a Single Beam Special 30th Anniversary Feature , 1990 .

[11]  P. Townsend,et al.  Formation of silver nanoparticles in soda–lime silicate glass by ion implantation near room temperature , 1999 .

[12]  J. Qiu,et al.  Nanosecond nonlinear absorption in Au and Ag nanoparticles precipitated glasses induced by a femtosecond laser , 2006 .

[13]  Timurbek Usmanov,et al.  Nonlinear susceptibilities, absorption coefficients and refractive indices of colloidal metals , 2001 .

[14]  A. Polman,et al.  Formation mechanism of silver nanocrystals made by ion irradiation of ion-exchanged sodalime silicate glass , 2000 .

[15]  Arao Nakamura,et al.  Dispersion curves of complex third-order optical susceptibilities around the surface plasmon resonance in Ag nanocrystal–glass composites , 2003 .

[16]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[17]  Michael Vollmer,et al.  Optical properties of metal clusters , 1995 .

[18]  W. Yunus,et al.  Single Beam Z-Scan Measurements of Nonlinear Refraction and Nonlinear Absorption Coefficients in Silver Nano-Fluid , 2010 .

[19]  A. Berger,et al.  Small silver particles in glass surface layers produced by sodium-silver ion exchange — their concentration and size depth profile , 1991 .

[20]  M Dubiel,et al.  Formation of silver particles and periodic precipitate layers in silicate glass induced by thermally assisted hydrogen permeation , 2001 .

[21]  G. Mie.  Contributions to the optics of turbid media, particularly of colloidal metal solutions , 1976 .

[22]  Ari Tervonen,et al.  SERS-active silver nanoparticle aggregates produced in high-iron float glass by ion exchange process , 2011 .