Indicators on CLBO Crystal You Should Know
Indicators on CLBO Crystal You Should Know
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All-sound-point out ultraviolet lasers have already been widely Utilized in the fields of mechanical flaw detection, lithography, micromachining and medicine for the benefits of small volume, extensive daily life, higher effectiveness, very good beam quality, huge tuning and slim spectral line, and many others. Utilizing significant energy in close proximity to-infrared coherent light supply as the elemental frequency resource determined by nonlinear tuning engineering, building ultraviolet coherent radiation by multistage frequency conversion is regarded as an important technique to establish the ultraviolet coherent light-weight source.
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The real key challenge of ultraviolet coherent mild resource mostly concentrates on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is among the ailments for frequency transformation, so the growth, measurement, damage resistance, conversion effectiveness and allowable parameter range of nonlinear optical crystal are essential Increasingly more.
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On the other facet, the ability scaling on the NIR laser is another aspect to enhance the normal electric power on the 193-nm DUV laser. As a result of not enough the substantial-power amplification Option from the NIR laser (such as at 1553 nm), nonlinear frequency processes for instance optical parameter oscillation (OPO) might be placed on create a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength in addition to acquiring relative higher electricity [21]. Recently, a diamond Raman laser showed its skill in achieving a large electric power in addition to a high conversion effectiveness for the 1st Stokes of the one-μm laser [22,23], which suggests the likelihood to generally be applied inside the 193-nm DUV laser era thanks to its high Raman acquire and enormous frequency shift.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics with the Nd:YAG essential laser wavelength. To be able to enhance the harm threshold, very low CLBO floor roughness, by extremely-precision machining, is needed. Since the CLBO crystal has straightforward hydroscopic response and micro scratches in machining, ultra-exact machining on the CLBO crystal can be a hard technical problem.
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Its UV absorption edge reaches 180 nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as big as that of KDP. CLBO crystals may be developed in the stoichiometric soften with decrease viscosity.
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