Next Article in Journal
Photoswitchable Fluorescent Diarylethene Derivatives with Thiophene 1,1-Dioxide Groups: Effect of Alkyl Substituents at the Reactive Carbons
Next Article in Special Issue
Wet-Chemical Synthesis of 3D Stacked Thin Film Metal-Oxides for All-Solid-State Li-Ion Batteries
Previous Article in Journal
Quantifying the Performance of P-Type Transparent Conducting Oxides by Experimental Methods
Previous Article in Special Issue
Synthesis of Hollow Sphere and 1D Structural Materials by Sol-Gel Process

Sol-Gel Derived Active Material for Yb Thin-Disk Lasers

Centro de Química Estrutural/DEQ, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Authors to whom correspondence should be addressed.
Materials 2017, 10(9), 1020;
Received: 27 July 2017 / Revised: 28 August 2017 / Accepted: 28 August 2017 / Published: 2 September 2017
(This article belongs to the Special Issue Sol-Gel Chemistry Applied to Materials Science)
A ytterbium doped active material for thin-disk laser was developed based on aluminosilicate and phosphosilicate glass matrices containing up to 30 mol% YbO1.5. Thick films and bulk samples were prepared by sol-gel processing. The structural nature of the base material was assessed by X-ray diffraction and Raman spectroscopy and the film morphology was evidenced by scanning electron microscopy. The photoluminescence (PL) properties of different compositions, including emission spectra and lifetimes, were also studied. Er3+ was used as an internal reference to compare the intensities of the Yb3+ PL peaks at ~ 1020 nm. The Yb3+ PL lifetimes were found to vary between 1.0 and 0.5 ms when the Yb concentration increased from 3 to 30 mol%. Based on a figure of merit, the best active material selected was the aluminosilicate glass composition 71 SiO2-14 AlO1.5-15 YbO1.5 (in mol%). An active disk, ~ 36 μm thick, consisting of a Bragg mirror, an aluminosilicate layer doped with 15 mol% Yb and an anti-reflective coating, was fabricated. View Full-Text
Keywords: sol-gel; thin-disk laser; Yb-doped glasses; aluminosilicate glasses; photoluminescence sol-gel; thin-disk laser; Yb-doped glasses; aluminosilicate glasses; photoluminescence
Show Figures

Graphical abstract

MDPI and ACS Style

Almeida, R.M.; Ribeiro, T.; Santos, L.F. Sol-Gel Derived Active Material for Yb Thin-Disk Lasers. Materials 2017, 10, 1020.

AMA Style

Almeida RM, Ribeiro T, Santos LF. Sol-Gel Derived Active Material for Yb Thin-Disk Lasers. Materials. 2017; 10(9):1020.

Chicago/Turabian Style

Almeida, Rui M., Tiago Ribeiro, and Luís F. Santos. 2017. "Sol-Gel Derived Active Material for Yb Thin-Disk Lasers" Materials 10, no. 9: 1020.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop