Fabrication, optical properties and laser outputs of Nd:YAG ceramics based on laser ablated and pre-calcined powders
Source abstract
Abstract
Transparent Nd:YAG ceramic was fabricated by the solid-state reaction method with an additional round of pre-calcining using nanopowders of 1 at.% Nd:Y2O3 and Al2O3 synthesized by laser ablation. The precalcining step and addition of tetraethyl orthosilicate was found crucial for fabricating high optical quality Nd:YAG ceramic from such nanoparticles. The transmittance of the obtained 2-mm-thick Nd:YAG ceramic was 83.6% at the wavelength of 1064 nm, which is very close to the theoretical value. The uniformity of the optical quality of ceramic was mapped by analyzing the point-by-point transmission of a focused laser beam. The average volume of the scattering centers in the obtained ceramic was evaluated by direct count method to be 17 ppm. The Nd distributionwas determined by fluorescence imaging to be homogeneous throughout the sample. Output power of 4.9 W with a slope efficiency of 52.7% was obtained in 1.5-mm-thick Nd:YAG ceramic under a quasi-continuous wave (QCW) laser diode end pumping at 805 nm.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Solid State Laser Technologies · Laser Design and Applications · Luminescence Properties of Advanced Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers10.1111/j.1151-2916.1995.tb08433.x ↗
2. Ceramic laser materials10.1038/nphoton.2008.243 ↗
3. 3-D numerical simulation of Yb:YAG active slabs with longitudinal doping gradient for thermal load effects assessment10.1364/OE.22.005375 ↗
4. Ikesue · 2013
5. Composite Nd:YAG/Cr4+:YAG for thin disk lasers10.1016/j.ceramint.2015.07.109 ↗
6. Large size crystalline vs. co-sintered ceramic Yb3+:YAG disk performance in diode pumped amplifiers10.1364/OE.23.000570 ↗
7. Optical properties and highly efficient laser oscillation of Nd:YAG ceramics10.1007/s003400000394 ↗
8. Preparation and characterization of transparent Nd:YAG ceramics
9. Novel transparent ceramics for solid-state lasers
10. 2.44 kW laser output of Nd:YAG ceramic slab fabricated by a solid-state reactive sintering10.1016/j.jallcom.2012.05.050 ↗
11. Functional properties of Nd:YAG polycrystalline ceramics processed by high-pressure spark plasma sintering (HPSPS)
12. Microstructure evolution of SiO2, ZrO2-doped Y3Al5O12:Nd3+ ceramics obtained by reactive sintering10.1016/j.ceramint.2015.06.009 ↗
13. Fabrication of Nd3+:YAG laser ceramics with various approaches10.1016/j.optmat.2012.03.004 ↗
14. Laser synthesis of nanopowders10.1134/S1054660X06010105 ↗
15. Production of nanopowders of oxides by means of fiber and pulse-periodical CO2 lasers10.1002/pssc.201200965 ↗
16. Propagation parameters of the beam extracted from a diode pumped Nd:YAG ceramic slab laser with a hybrid stable-unstable resonator10.1016/j.optlastec.2006.10.012 ↗
17. High efficiency, diode pumped Nd:YAG ceramic slab laser with 230 W continuous-wave output power10.1364/AO.51.004224 ↗
18. Highly efficient 2% Nd:yttrium aluminum garnet ceramic laser10.1063/1.1331091 ↗
19. Effects of the excitation density on the laser output of two differently doped Yb: YAG ceramics10.1364/OE.18.017262 ↗
20. Optical properties and highly efficient laser oscillation of Nd:YAG ceramics10.1007/s003400000394 ↗
21. Nd3+-doped Lu2O3 transparent sesquioxide ceramics elaborated by the Spark Plasma Sintering (SPS) method. Part 2: first laser output results and comparison with Nd3+-doped Lu2O3 and Nd3+-Y2O3 ceramics elaborated by a conventional method10.1016/j.optmat.2014.09.033 ↗
22. Ho:YAG transparent ceramics based on nanopowders produced by laser ablation method: fabrication, optical properties, and laser performance10.1016/j.optmat.2015.03.036 ↗
23. Quantum electronic properties of the Na3Ga2Li3F12:Cr3+ laser10.1109/3.231 ↗