Picosecond nonlinearity of GeO2-Bi2O3-PbO-TiO2 glasses at 532 and 1,064 nm

Author(s)

Besse, Valentin ^[1] ; Fortin, Alexandre ^[1] ; Boudebs, Georges ^[1] ; Valle, Paula S. ^[2] ; Nalin, Marcelo ^[2] ; de Araujo, Cid B. ^{[1, 3]}

Affiliation

^[1] Univ Angers, LUNAM Univ, Lab Photon Angers, LPhiA, EA 4464, F-49045 Angers 01 - France

^[2] Univ Estado Sao Paulo UNESP, LAVIE Inst Quim, BR-14800060 Araraquara, SP - Brazil

^[3] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE - Brazil

• Document type: Journal article
• Source: APPLIED PHYSICS B-LASERS AND OPTICS; v. 117, n. 3, p. 891-895, DEC 2014.
• Web of Science Citations: 5

Abstract

The third-order optical properties of GeO2-Bi2O3- PbO-TiO2 glasses at 532 nm and 1,064 nm were studied to evaluate their potential for optical limiting and all-optical switching. The Z-scan technique was used to determine the nonlinear (NL) refractive index, n(2), and the NL absorption coefficient, alpha(2), of samples with different amounts of the constituent oxides. Values of n2 approximate to + 0.7 x 10(-1)4 cm(2)/W at 1,064 nm and approximate to + 1.5 x 10(-14) cm(2)/W at 532 nm were measured. The NL absorption coefficient, alpha(2), was smaller than the minimum that our apparatus can measure (alpha(2) < 0.01 cm/GW) in the near-infrared (1,064 nm); in the visible region (532 nm), we obtained alpha(2) approximate to 4.4 cm/GW. The set of NL parameters measured indicates the potential usefulness of the GeO2-Bi2O3-PbO-TiO2 glasses for all-optical switching at 1,064 nm and for optical limiting at 532 nm. (AU)

• FAPESP's process: 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass
• Grantee: Edgar Dutra Zanotto
• Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC