A Simple Key For CLBO Crystal Unveiled
A Simple Key For CLBO Crystal Unveiled
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All-solid-condition ultraviolet lasers happen to be greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and medication for the advantages of tiny volume, extended everyday living, superior effectiveness, excellent beam high quality, wide tuning and slim spectral line, and so forth. Using significant ability in the vicinity of-infrared coherent mild source as the elemental frequency source depending on nonlinear tuning engineering, creating ultraviolet coherent radiation by multistage frequency conversion is viewed as an important strategy to develop the ultraviolet coherent mild source.
When compared with BBO it attributes larger sized spectral and temperature acceptance, much better angle tolerance, as well as a lesser stroll-off angle. from 3289 $ supply
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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。
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Because of the thermal lens effect from the strong-state lasers, Should the heating management is insufficient, It isn't straightforward to obtain the solid-state laser which has a substantial electricity and also a high beam excellent simultaneously. Just lately, with the event of the thin disk laser and one-crystal fiber (SCF) laser, a significant-energy laser at the elemental wavelength (1 μm) had been realized with a great beam top quality Despite a TEM00 method beam [four,24], which might be good candidates for the fundamental in the DUV laser era. One more applicant for the fundamental may be the large-electricity fiber laser which may be reached by coherent beam mixture with M2 value fewer than one.
On the opposite side, the power scaling of your NIR laser is an additional facet to increase the normal electricity in the 193-nm DUV laser. Because of the not enough the large-power amplification Option on the NIR laser (for instance at 1553 nm), nonlinear frequency procedures including optical parameter oscillation (OPO) can be applied to make a wavelength converter by shifting the wavelength from one μm to the desired wavelength in addition to acquiring relative bigger energy [21]. Just lately, a diamond Raman laser confirmed its means in reaching a higher power and also a superior conversion performance at the 1st Stokes from the 1-μm laser [22,23], which means the chance to get utilized while in the 193-nm DUV laser era as a result of its large Raman obtain and large frequency change.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics from the Nd:YAG elementary laser wavelength. To be able to boost the problems threshold, reduced CLBO area roughness, by extremely-precision machining, is required. Since the CLBO crystal has straightforward hydroscopic response and micro scratches in machining, ultra-precise machining of your CLBO crystal is a tricky technological trouble.
The beam profile proven in Figure 7b demonstrated a superb beam quality as one of many merits of Raman laser, which would be helpful to make a 193-nm DUV laser with a high quality beam.
The conversion effectiveness from essential NIR to DUV is from 5% to 36% in accordance with the documented results in Table one. Increasing the conversion effectiveness will reduce the load on the look and setup of the basic laser amplifier as well as the electrical ability consumption. A superb beam high-quality of the fundamental laser will even lead to your increasing from the conversion efficiency and also the suitable electricity intensity on the NIR and inexperienced laser while in the SHG and FHG approach, respectively. The best conversion efficiencies from NIR to inexperienced and inexperienced to DUV laser by use of CLBO crystal are 70% and about 50%, respectively [twelve], which corresponds for the conversion effectiveness of 35% from fundamental to more info DUV.
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