Title

Femtosecond Laser Structuring And Optical Properties Of A Silver And Zinc Phosphate Glass

Keywords

Femtosecond laser writing; Luminescence; Multiphoton absorption; Silver clusters

Abstract

We report on the micro- and nano-structuring of a silver-containing zinc phosphate glass under high repetition rate femtosecond near-infrared laser exposure. Luminescent silver clusters are locally formed thanks to multi-photon absorption. The excitation mechanisms in the glass are investigated with a transient absorption pump-probe experiment. The free electron density of the femtosecond-laser-induced ionized material for irradiation conditions leading to structural modifications is measured. We show that the involved photo-excitation process in the laser-glass interaction is a four-photon absorption and the measured free electron density is on the order of 10 17 cm- 3, four orders of magnitude below the critical electron density. The luminescence properties of these resulting structures have been investigated. Emission spectra are compared with those collected after different irradiations (γ and electron beams). The migration of silver species has been assigned to be responsible for local modifications and selective acid etching behavior of the structure. © 2010 Elsevier B.V. All rights reserved.

Publication Date

10-1-2010

Publication Title

Journal of Non-Crystalline Solids

Volume

356

Issue

44-49

Number of Pages

2658-2665

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jnoncrysol.2010.03.033

Socpus ID

78349304092 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/78349304092

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