A Secret Weapon For CLBO Crystal
A Secret Weapon For CLBO Crystal
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All-reliable-condition ultraviolet lasers are already commonly used in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of tiny quantity, extended daily life, significant effectiveness, very good beam quality, vast tuning and narrow spectral line, and so forth. Using substantial electric power around-infrared coherent light supply as the elemental frequency resource dependant on nonlinear tuning technology, making ultraviolet coherent radiation by multistage frequency conversion is thought to be a significant method to acquire the ultraviolet coherent light supply.
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The common power on the NIR laser still has the prospective to generally be improved to tens of watts such as 70 W [26] In the event the double-move configuration could possibly be used for that Yb:YAG SCF amplifier stage. As a result, In case the conversion performance of 31% from NIR to DUV might be however maintained at this increased energy affliction, the average output ability in the DUV laser at 258 nm can be over twenty W, which might be a exceptional electricity stage for the DUV laser and result in the unanticipated DUV laser machining final results. Also, for high-electrical power DUV laser, the UV hurt on the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is another important parameter for long-lasting and secure Procedure.
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On the other side, the ability scaling of the NIR laser is an additional element to improve the typical electric power from the 193-nm DUV website laser. Mainly because of the lack of the substantial-ability amplification Option from the NIR laser (one example is at 1553 nm), nonlinear frequency procedures such as optical parameter oscillation (OPO) may very well be placed on create a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength along with obtaining relative larger electricity [21]. Not long ago, a diamond Raman laser confirmed its skill in attaining a higher energy along with a higher conversion efficiency within the 1st Stokes of the one-μm laser [22,23], which suggests the possibility to be utilized inside the 193-nm DUV laser generation thanks to its significant Raman achieve and enormous frequency change.
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The heart beat length of the second Stokes gentle was shortened to 5 ns as demonstrated in Figure 7a, only one-shot image from the oscilloscope, and that is a common phenomenon in Raman laser [forty four] whilst the heartbeat duration on the pump laser was ten ns.
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Tunable ultraviolet laser resource determined by sound-condition dye laser technological innovation and CsLiB6O10 harmonic era
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