A Simple Key For CLBO Crystal Unveiled

A Simple Key For CLBO Crystal Unveiled

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We summarized The existing progress standing from the higher-power DUV laser both of those within the wavelength of FHG of your one-μm laser and at 193 nm. The latest enhancement in the solid-condition/fiber laser, along with the nonlinear optical crystals, prompts not simply the average electricity but will also the beam high quality (coherence) with the DUV lasers to an unprecedented amount.

By way of example, The present concave OC could be replaced by a airplane mirror which could mitigate the ability density around the area of M1 as well as diamond. Additionally, utilizing significant hurt threshold coatings for M1 and diamond would also improve the output ability with no damages. Then, the NIR laser in the 2nd Stokes wavelength could be superior adequate, in addition to its superior beam excellent, to make the ultimate DUV laser at 193 nm having a substantial ordinary ability.

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LBO is additionally a fantastic nonlinear crystal which is often applied to the SHG with the NIR towards the eco-friendly. The DUV laser will likely be realized by two phases of SFG from the LBO crystals because there isn't a section-matching angle for LBO to convert the green laser at 515 nm or 532 nm towards the DUV straight by SHG [16]. Lately, the NSBBF crystal has also shown its possible to obtain a higher conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff with the NSBBF are Practically much like those of CLBO [seventeen].

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While in the scientific and industrial apps, the beam good quality on the DUV laser can also be a vital parameter. Notably, the beam top quality from the DUV laser significantly has an effect on the laser machining effects. The beam top quality from the DUV laser is decided by that of the basic laser as well as the crystal with the frequency conversion. Not long ago, a large-power DUV laser (>10 W) at 258 nm was reported that has a beam good quality of M2 < one.5, which was produced by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would result in an here even better laser machining outcome as compared to the earlier DUV lasers with larger sized M2.

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Also, combining the stable-state laser with other nonlinear process including stimulated Raman scattering, NIR lasers could possibly be reached at new wavelengths with significant electric power and substantial beam top quality, which was tested through the evidence-of-principle experiment. This Raman laser plan supplies a brand new route to the high-ability DUV laser, Primarily within the wavelength of 193 nm.

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