Dysprosium ion activated gadolinium gallium garnet novel laser crystal
A technology of gadolinium gallium garnet and laser crystal, applied in the field of laser crystal materials, can solve the problems of unseen laser performance, low thermo-optic effect, and less research on laser crystals, etc.
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Embodiment 1
[0032] Embodiment one: Dy:Gd 3 Ga 5 o 12 Crystal Growth Preparation
[0033] The instrument used for crystal pulling method growth is DJL-400 intermediate frequency pulling furnace, and the model of intermediate frequency power supply is KGPF25-0.3-2.5. Use Pt / Pt-Rh thermocouple and type 815EPC ohmmeter for temperature control. The crucible used is an iridium crucible of Φ55mm×30mm, and the raw material used is 4N grade Gd 2 o 3 , Ga 2 o 3 、Dy 2 o 3 . Prepare raw materials according to the following chemical reaction formula:
[0034] (3-x)Gd 2 o 3 + Ga 2 o 3 +xDy 2 o 3 →2Gd (3-x) Dy x Ga 5 o 12
[0035] x=0.1at%~5at%; mix the raw materials evenly, press them into flakes, put them into a platinum crucible, put them into a common sintering furnace, slowly raise the temperature to 1080°C at 150°C / h, keep it for 48h, repeat this process, and then Put it into a high-temperature sintering furnace and sinter at a constant temperature of 1350 ° C for 72 hours, a...
Embodiment 2
[0037] Embodiment two: Dy:Gd 3 Ga 5 o 12 Crystal Laser Experiments
[0038] Process high-quality Dy:Gd with a size of φ5mm×(10mm~20mm) 3 Ga 5 o 12 Crystal devices, laser experiments with suitable pump sources including xenon lamps. The experimental device is attached figure 1 shown. 1 in the figure is rod Dy:Gd 3 Ga 5 o 12 Crystal; 2 is a suitable pump source including xenon lamp; 3 is a dielectric mirror that totally reflects a specific wavelength in the λ=550-600nm band; 4 is a specific wavelength part in the λ=550-600nm band Transmission dielectric mirror; 5 is LPE-1A laser energy meter.
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