Lasers with emission wavelengths of 1.5 μm are suitable for the eye-safe band and
transparency region of the atmosphere. During extremely bad weather conditions, the …

Cobalt doped zinc aluminate spinel type nanostructures were synthesized by microwave
combustion method. The structural, vibrational, optical, morphological and magnetic …

We report on passively Q-switched operation of a diode-pumped Er–Yb: glass laser with a
Co^ 2+: MgAl_2O_4 plate as a saturable absorber. Optical pulses with peak power …

Published data on spectroscopic characteristics of saturable absorbers based on crystals
doped with tetrahedrally coordinated transition-metal ions (Cr 2+, Cr 4+, Cr 5+, V 3+, Cr 2+ …

Transparent polycrystalline ZnAl 2 O 4 (gahnite) ceramic doped with 0.1 at.% Co 2+ is
synthesized by hot pressing of powders (1600° C, 50 MPa) using the sintering additive, ZnF …

Co x Zn1–x Al2O4 (x= 0.01–0.6) nanoparticles were synthesized by the citrate sol–gel
method and were characterized by X-ray powder diffraction and transmission electron …

We describe the development of a reasonable cost Co 2+: MgAl 2 O 4 transparent ceramic
plates fabrication technology that allows the producing of parts functioning as passive laser …

The growing interest in luminescence thermometry and the desire to improve the
thermometric properties of luminescent thermometers prompt the search for new solutions …

We experimentally investigate crystals doped with tetravalent chromium or divalent cobalt as
saturable absorbers for passive Q-switching of visible solid-state lasers. The recovery time of …

New promising optical glasses containing cobalt ions in tetrahedral coordination have been
synthesized, their mechanical and optical properties, as well as their characteristic …