The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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In this particular paper, The brand new lapping slurry and polishing slurry are introduced. Plus the deliquescence diploma of CLBO is fallen to lowest. A brand new Performing technology is additionally adopted. Soon after tough sharpening, the concentration of ultra-precision polishing slurry is enhanced adequately. So does the extremely-precision polishing speed, along with the wiping pace is quicker as opposed to deliquescence pace. The CLBO crystal surface area roughness can accomplish 1nm and maintain the surface excellent very well. Accessibility via your establishment
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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。
Conversely, the beam excellent of this bigger electricity DUV laser would turn into even worse as a result of extra critical thermal and nonlinear consequences. Consequently, the frequency conversion procedures need to be cautiously intended to mitigate the aforementioned outcomes. Consequently, a superior-energy DUV laser for the FHG of one μm with a superb beam excellent may very well be received and can be useful for acquiring the shorter wavelength DUV lasers including 193 nm by SFG.
LBO is also a fantastic nonlinear crystal which is often placed on the SHG in the NIR on the green. The DUV laser is normally recognized by two stages of SFG while in the LBO crystals since there's no section-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm to the DUV straight by SHG [16]. Not too long ago, the NSBBF crystal has also demonstrated its probable to acquire a substantial conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff of the NSBBF are Pretty much just like All those of CLBO [17].
On the opposite aspect, the power scaling of your NIR laser is an additional element to increase the regular ability with the 193-nm DUV laser. As a result of lack of the significant-electrical power amplification Option from the NIR laser (one example is at 1553 nm), nonlinear frequency processes for example optical parameter oscillation (OPO) could be placed on build a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength along with obtaining relative increased electric power [21]. Not too long ago, a diamond Raman laser confirmed its means in accomplishing a superior electric power along with a substantial conversion performance with the 1st Stokes of the 1-μm laser [22,23], which suggests the possibility to be used in the 193-nm DUV laser generation as a consequence of its superior Raman gain and large frequency shift.
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The pulse period of the 2nd Stokes mild was shortened to five ns as proven in Determine 7a, an individual-shot photograph with the oscilloscope, which can be a standard phenomenon in Raman laser [forty four] although the heart beat length of the pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates check here ultraviolet harmonics with the Nd:YAG fundamental laser wavelength. To be able to improve the harm threshold, reduced CLBO surface roughness, by extremely-precision machining, is required. Because the CLBO crystal has quick hydroscopic response and micro scratches in machining, ultra-specific machining on the CLBO crystal is actually a hard complex problem.
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