Intermediate infrared nonlinear optical crystal material RbIO2F2 as well as preparation method and application of crystal material
A technology of nonlinear optics and crystal materials, applied in the growth of polycrystalline materials, chemical instruments and methods, crystal growth, etc., can solve the problems that the research of new frequency conversion crystals needs to be strengthened, and achieve high laser damage threshold and thermal stability, The effect of high product purity and simple operation
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Embodiment 1
[0029] 3 mmol RbIO 3 Adding 3 milliliters of 40% HF aqueous solution into a polytetrafluoroethylene-lined reactor, sealing, reacting at 230 degrees Celsius for 24 hours, then sealing and cooling for 3 days, the colorless transparent filtrate obtained at room temperature Slowly volatilize to obtain colorless blocky crystals, filter them with suction, and dry them to obtain mid-infrared nonlinear optical crystal materials.
Embodiment 2
[0031] 3 mmol RbIO 3 Add 10 ml of HF aqueous solution with a mass fraction of 30% into a reaction kettle, seal and react at 230 degrees Celsius for 24 hours, then seal and cool down for 10 days, place the reaction solution at room temperature to volatilize freely, and wait until the liquid volatilizes completely to obtain The colorless blocky crystals were suction filtered and dried to obtain a mid-infrared nonlinear optical crystal material.
Embodiment 3
[0033] 3 mmol RbIO 3 Add 30 milliliters of mass fraction and be filled in the reaction kettle of 50% HF aqueous solution, seal and react at 230 degrees Celsius for 24 hours, then seal and cool down for 10 days to obtain a colorless and transparent filtrate; open the reaction kettle, and place the colorless and transparent filtrate in Volatilize at room temperature to obtain colorless massive crystals, filter them with suction, and dry them to obtain mid-infrared nonlinear optical crystal materials.
[0034] In the above embodiment, the molar number that needs to satisfy HF is RbIO 3 More than twice the number of moles. At room temperature, RbIO 3 The reaction with HF aqueous solution is slow, and the reaction process can be accelerated under high temperature and high pressure, and the generation of crystals can be accelerated. Preferably, it is best to react at 230 degrees Celsius for 24 hours after sealing; when the volume of HF aqueous solution is too large, the volatiliza...
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