Non-linear optical crystal-sodium beryllate borate, growth method and application thereof

A non-linear optics, sodium borate beryllium technology, applied in the field of new optoelectronic functional materials and growth, can solve the problems of low crystal birefringence, limited phase matching range, parallel arrangement, etc., and achieve the effect of good chemical stability
CN101545138AActive Publication Date: 2009-09-30FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Publication Date
2009-09-30

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Abstract

The invention relates to a non-linear optical crystal-sodium beryllate borate, a growth method and application thereof. A chemical formula of the sodium beryllate borate is NaBeB3O6, the sodium beryllate borate belongs to an orthorhombic system, a space group is Pna21, cell parameters are that a is equal to 9.1531*, b is equal to 11.9337*, c is equal to 4.3724*, alpha is equal to beta, gamma and 90 DEG, and z is equal to 4, and the unit-cell volume is that V is equal to 477.60*<3>. The frequency multiplication coefficient of the sodium beryllate borate is 1.22 times of that of LiB3O5(LBO). The ultraviolet absorption edge of the sodium beryllate borate is shorter than 190nm. A solid-phase synthesis method is adopted for sintering at high temperature to obtain a NBB compound. A monocrystal can be successfully grown by using a molten salt method and taking Na2O-B2O3 or NaF-B2O3 as a fluxing agent. The NaBeB3O6 has non-linear optical effect, cannot be dissolved into dilute acid, has good chemical stability, can be widely applied in various non-linear optical fields, and can develop the non-linear optical application of deep ultraviolet wavebands.
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Description

technical field

[0001] The present invention relates to a novel optoelectronic functional material and its growth method and use, in particular to a nonlinear optical crystal material and its preparation method and use, i.e. sodium boron beryllium acid, whose chemical formula is NaBeB 3 o 6 , referred to as NBB. technical background

[0002] The nonlinear optical effect of crystal refers to such an effect: when a laser beam with a certain polarization direction passes through a nonlinear optical crystal (such as NBB) in a certain incident direction, the frequency of the beam will change.

[0003] Crystals with nonlinear optical effects are called nonlinear optical crystals. The use of nonlinear optical crystals for laser frequency conversion broadens the range of laser wavelengths and makes the application of lasers more extensive. Especially borate nonlinear optical crystals such as BBO, LBO, KBBF, SBBO, TBO, KABO, BABO and other crystals have attracted much attention du...

Claims

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