Linear and Nonlinear Optical Properties of Ag Nanowire Polarizing Glass

• Published in: Advanced functional materials 2006-12, Vol.16 (18), p.2405-2408
• Main Authors: Wang, Q.-Q., Han, J.-B., Gong, H.-M., Chen, D.-J., Zhao, X.-J., Feng, J.-Y., Ren, J.-J.
• Format: Article
• Language: English
• Subjects: Glasses; Nanorods; Nonlinear optical materials; Silver
• ISSN: 1616-301X; 1616-3028
• DOI: 10.1002/adfm.200600096

An R2O–B2O3–SiO2 (R = Li, Na, K) polarizing glass containing Ag nanorods is prepared by thermal elongation–reduction technology. The transverse and longitudinal plasmon absorption peaks of the embedded Ag nanorods are near 460 and 720 nm, respectively. When the polarization of the laser is parallel to the long axis of the Ag nanorods, the nonlinear absorption coefficient β = 0.82 cm GW–1 and the nonlinear refractive index n2 = –1.5 × 10–4 cm2 GW–1. When the polarization of light is perpendicular to the long axis of the Ag nanorods β = 0.12 cm GW–1 and n2 = –7.2 × 10–5 cm2 GW–1 and the appropriate one‐ and two‐photon figures of merit (FOM), W = 1.6 and T = 0.16, respectively, are obtained, which satisfies the demand, W > 1 and T  1 and T