Examine This Report on CLBO Crystal

Examine This Report on CLBO Crystal

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During this paper, The brand new lapping slurry and polishing slurry are introduced. And the deliquescence degree of CLBO is fallen to least expensive. A brand new Operating technological innovation is usually adopted. Immediately after tough sprucing, the focus of extremely-precision polishing slurry is amplified properly. So does the extremely-precision sharpening velocity, plus the wiping pace is faster in comparison to the deliquescence velocity. The CLBO crystal surface roughness can obtain 1nm and retain the area high-quality properly. Obtain by way of your establishment

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We summarized The present growth position in the high-electric power DUV laser both of those on the wavelength of FHG from the 1-μm laser and at 193 nm. The new development from the sound-state/fiber laser, together with the nonlinear optical crystals, prompts not only the average electrical power but will also the beam good quality (coherence) on the DUV lasers to an unprecedented level.

全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。

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As a result of thermal lens impact during the solid-state lasers, In case the heating management is inadequate, It isn't uncomplicated to get the strong-point out laser with a significant electric power and also a large beam high-quality simultaneously. Lately, with the development of the thin disk laser and one-crystal fiber (SCF) laser, a substantial-electric power laser at the basic wavelength (1 μm) had been understood with a fantastic beam good quality even with a TEM00 manner beam [four,24], which would be fantastic candidates for the fundamental of your DUV laser era. Yet another candidate for the elemental could be the significant-electric power fiber laser which may be attained by coherent beam combination with M2 price lower than one.

On another facet, the ability scaling of your NIR laser is an additional component to increase the normal ability of the 193-nm DUV laser. As a result of deficiency of the superior-power amplification Remedy of your NIR laser (one example is at 1553 nm), nonlinear frequency processes for example optical parameter oscillation (OPO) could be placed on make a wavelength converter by shifting the wavelength from one μm to the desired wavelength in addition to obtaining relative larger electric power [21]. Recently, a diamond Raman laser showed its capacity in attaining a superior electricity plus a large conversion performance on the 1st Stokes on the one-μm laser [22,23], which suggests the likelihood to become used within the 193-nm DUV laser technology because of its large Raman gain and huge frequency change.

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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics of your Nd:YAG basic laser wavelength. So as to increase the damage threshold, very low CLBO surface roughness, by ultra-precision machining, is required. Because the CLBO crystal has easy hydroscopic response and micro scratches in machining, extremely-exact machining of your CLBO crystal is actually a hard complex challenge.

The beam profile proven in Determine 7b shown an excellent beam top quality as among the list of merits of Raman laser, which might be beneficial to crank out a 193-nm DUV laser with a top quality beam.

The conversion performance from fundamental NIR to DUV is from 5% to 36% according to the noted leads to Table 1. Increasing the conversion effectiveness will decrease the stress on the look and setup of the fundamental laser amplifier plus the electrical power consumption. A superb more info beam quality of the basic laser may also contribute into the expanding with the conversion effectiveness in addition to the right electric power intensity of the NIR and inexperienced laser inside the SHG and FHG process, respectively. The very best conversion efficiencies from NIR to green and environmentally friendly to DUV laser by utilization of CLBO crystal are 70% and close to fifty%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from elementary to DUV.

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