A Simple Key For CLBO Crystal Unveiled

A Simple Key For CLBO Crystal Unveiled

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All-stable-condition ultraviolet lasers have been greatly Utilized in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of modest volume, very long daily life, large performance, great beam high-quality, huge tuning and narrow spectral line, and many others. Using high energy near-infrared coherent gentle source as the basic frequency resource determined by nonlinear tuning engineering, generating ultraviolet coherent radiation by multistage frequency conversion is considered a significant strategy to create the ultraviolet coherent light-weight source.

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The standard power of your NIR laser continue to has the potential to be enhanced to tens of watts for instance 70 W [26] In the event the double-go configuration may be used to the Yb:YAG SCF amplifier phase. Consequently, When the conversion performance of 31% from NIR to DUV can be nevertheless managed at this greater electric power condition, the average output electric power from the DUV laser at 258 nm may very well be greater than 20 W, which would certainly be a extraordinary energy stage for that DUV laser and bring on the unanticipated DUV laser machining success. Moreover, for top-ability DUV laser, the UV destruction on the nonlinear crystal, such as the Home windows for CLBO crystal and the mirrors, is yet another vital parameter for lasting and steady operation.

However, the beam excellent of this increased electrical power DUV laser would come to be worse as a result of additional serious thermal and nonlinear outcomes. Hence, the frequency conversion processes needs to be meticulously created to mitigate the aforementioned outcomes. So, a large-electric power DUV laser at the FHG of 1 μm with a great beam top quality may be acquired and will be helpful for getting the shorter wavelength DUV lasers which include 193 nm by SFG.

LBO is likewise an outstanding nonlinear crystal which is often applied to the SHG within the NIR to your green. The DUV laser is frequently recognized by two stages of SFG in the LBO crystals given that there isn't any stage-matching angle for LBO to transform the inexperienced laser at 515 nm or 532 nm on the DUV instantly by SHG [16]. Recently, the NSBBF crystal has also revealed its likely to acquire a higher conversion efficiency from 532 nm to 266 nm. The stroll-off angle and deff with the NSBBF are almost comparable to Those people of CLBO [seventeen].

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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics on the Nd:YAG basic laser wavelength. In an effort to increase the hurt threshold, lower CLBO surface area roughness, by ultra-precision machining, is necessary. As the CLBO crystal has quick hydroscopic response and micro scratches in machining, ultra-specific machining with the CLBO crystal is actually a tough technological trouble.

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