Within this paper, the new lapping slurry and polishing slurry are launched. As well as deliquescence diploma of CLBO is fallen to least expensive. A brand new Doing the job technological innovation is usually adopted. Following rough polishing, the focus of extremely-precision sprucing slurry is elevated thoroughly. So does the extremely-precision polishing velocity, plus the wiping speed is quicker compared to the deliquescence velocity. The CLBO crystal surface area roughness can reach 1nm and continue to keep the surface excellent very well. Access by way of your institution

When compared with BBO it features greater spectral and temperature acceptance, superior angle tolerance, as well as a smaller sized stroll-off angle. from 3289 $ shipping

In accordance with the evidence-of-basic principle experiment, the conversion performance of 23% implied the possibility of attaining higher-ability at the second Stokes wavelength in the Raman laser. Should the pump laser of 1078 nm may be attained at the average energy of 50 W, the output power of its 2nd Stokes wavelength at 1512 nm may very well be greater than ten W. The look on the Raman laser cavity really should be optimized so that you can stay away from the destruction of your M1 and diamond area.

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。

Then again, the beam top quality of this bigger electrical power DUV laser would become worse as a consequence of much more really serious thermal and nonlinear results. For this reason, the frequency conversion procedures must be diligently intended to mitigate the aforementioned outcomes. Thus, a higher-ability DUV laser in the FHG of 1 μm with a superb beam high-quality might be acquired and may be beneficial for obtaining the shorter wavelength DUV lasers like 193 nm by SFG.

LBO is usually an outstanding nonlinear crystal which is always applied to the SHG from the NIR to your environmentally friendly. The DUV laser is normally recognized by two phases of SFG during the LBO crystals given that there isn't a section-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm into the DUV directly by SHG [16]. Just lately, the NSBBF crystal has also demonstrated its opportunity to acquire a superior conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff of the NSBBF are Virtually much like Individuals of CLBO [17].

On another side, the ability scaling of the NIR laser is an additional aspect to improve the average power of the 193-nm DUV laser. Because of the not enough the superior-electric power amplification Resolution in the NIR laser (such as at 1553 nm), nonlinear frequency processes such as optical parameter oscillation (OPO) may very well be applied to make a wavelength converter by shifting the wavelength from one μm to the desired wavelength along with getting relative greater electricity [21]. Lately, a diamond Raman laser showed its skill in achieving a large electricity in addition to a large conversion performance at the 1st Stokes in the 1-μm laser [22,23], which suggests the likelihood to generally be used during the 193-nm DUV laser generation as a result of its substantial Raman get and enormous frequency change.

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The heartbeat duration of the 2nd Stokes light-weight was shortened to five ns as proven in Determine 7a, just one-shot picture within the oscilloscope, and that is a common phenomenon in Raman laser [forty four] although the pulse length in the pump laser was ten ns.

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The conversion performance from basic NIR to DUV is from five% to 36% based on the reported ends in Table 1. Rising the conversion efficiency will lessen the burden on the look and set up of the fundamental laser amplifier and also the electrical ability usage. An excellent beam high-quality of the fundamental laser may even add to the escalating with the conversion performance in addition to the suitable electricity depth with the NIR and environmentally friendly laser in the SHG and FHG procedure, respectively. The highest 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 to the conversion performance of 35% from essential to DUV.

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