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When compared with BBO it capabilities larger sized spectral and temperature acceptance, superior angle tolerance, plus a lesser wander-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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LBO is additionally a wonderful nonlinear crystal which is always applied to the SHG with the NIR towards the inexperienced. The DUV laser will likely be realized by two stages of SFG inside the LBO crystals due to the fact there is no phase-matching angle for LBO to convert the inexperienced laser at 515 nm or 532 nm into the DUV directly by SHG [sixteen]. Not long ago, the NSBBF crystal has also proven its likely to get a higher conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff with the NSBBF are Practically much like These of CLBO [seventeen].
On another facet, the power scaling of the NIR laser is an additional aspect to improve the typical ability from the 193-nm DUV laser. Mainly because of the insufficient the significant-energy amplification Option of the NIR laser (as an example at 1553 nm), nonlinear frequency processes for instance optical parameter oscillation (OPO) could possibly be applied to produce a wavelength converter by shifting the wavelength from one μm to the specified wavelength as well as obtaining relative greater electricity [21]. Not long ago, a diamond Raman laser confirmed its skill in accomplishing a superior power and a high conversion effectiveness with the 1st Stokes with the one-μm laser [22,23], which means the chance to generally be used during the 193-nm DUV laser technology thanks to its superior Raman attain and enormous frequency change.
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The pulse period of the second Stokes light-weight was shortened to 5 ns as revealed in Figure 7a, only one-shot photo from get more info your oscilloscope, that is a typical phenomenon in Raman laser [forty four] though the pulse length of the pump laser was 10 ns.
Moreover, combining the reliable-point out laser with other nonlinear procedure for instance stimulated Raman scattering, NIR lasers could possibly be realized at new wavelengths with higher electricity and significant beam excellent, which was analyzed from the proof-of-theory experiment. This Raman laser scheme gives a whole new path to the substantial-electric power DUV laser, Primarily at the wavelength of 193 nm.
Tunable ultraviolet laser supply based upon good-point out dye laser technology and CsLiB6O10 harmonic generation
Its UV absorption edge reaches a hundred and eighty nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as large as that of KDP. CLBO crystals is usually grown from the stoichiometric soften with reduced viscosity.
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