A Secret Weapon For CLBO Crystal
A Secret Weapon For CLBO Crystal
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All-reliable-state ultraviolet lasers have already been widely used in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of modest quantity, lengthy existence, superior efficiency, great beam good quality, large tuning and slender spectral line, and many others. Making use of high energy in the vicinity of-infrared coherent mild resource as the fundamental frequency source based upon nonlinear tuning engineering, creating ultraviolet coherent radiation by multistage frequency conversion is considered a vital technique to build the ultraviolet coherent light-weight resource.
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We summarized The present improvement position in the high-electric power DUV laser the two within the wavelength of FHG of the one-μm laser and at 193 nm. The current growth with the solid-condition/fiber laser, as well as the nonlinear optical crystals, prompts not merely the typical electricity but additionally the beam good quality (coherence) in the DUV lasers to an unparalleled amount.
The average electric power on the NIR laser nonetheless has the probable to become enhanced to tens of watts including 70 W [26] In case the double-go configuration might be utilized to the Yb:YAG SCF amplifier phase. As a result, When the conversion efficiency of 31% from NIR to DUV may be nevertheless preserved at this larger energy ailment, the common output power on the DUV laser at 258 nm might be much more than 20 W, which might be a impressive electricity stage with the DUV laser and lead to the unanticipated DUV laser machining outcomes. In addition, for high-electrical power DUV laser, the UV hurt with the nonlinear crystal, such as the windows for CLBO crystal along with the mirrors, is yet another vital parameter for long term and secure Procedure.
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LBO is also a fantastic nonlinear crystal which is usually placed on the SHG from the NIR for the inexperienced. The DUV laser is usually realized by two stages of SFG within the LBO crystals considering the fact that there isn't any phase-matching angle for LBO to convert the eco-friendly laser at 515 nm or 532 nm into the DUV immediately by SHG [16]. Lately, the NSBBF crystal has also proven its potential to get a higher conversion performance from 532 nm to 266 nm. The wander-off angle and deff of your NSBBF are Practically comparable to People of CLBO [17].
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics of the Nd:YAG essential laser wavelength. So as to boost the harm threshold, small CLBO surface area roughness, by extremely-precision machining, is required. Because the CLBO crystal has simple hydroscopic response and micro scratches in machining, ultra-specific machining on the CLBO crystal is a complicated specialized problem.
Tunable ultraviolet laser supply depending on sound-condition dye laser technologies and CsLiB6O10 harmonic technology
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