5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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All-solid-point out ultraviolet lasers have been commonly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of modest volume, extended daily life, substantial performance, fantastic beam high-quality, wide tuning and slender spectral line, and many others. Utilizing significant electric power in close proximity to-infrared coherent mild source as the elemental frequency source according to nonlinear tuning know-how, producing ultraviolet coherent radiation by multistage frequency conversion is considered to be a vital way to acquire the ultraviolet coherent light supply.
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We summarized The existing growth status with the large-energy DUV laser each in the wavelength of FHG in the 1-μm laser and at 193 nm. The modern improvement with the strong-condition/fiber laser, along with the nonlinear optical crystals, prompts not merely the average electricity but will also the beam excellent (coherence) of the DUV lasers to an unprecedented degree.
The standard electric power with the NIR laser even now has the possible to generally be enhanced to tens of watts like 70 W [26] if the double-move configuration might be used for the Yb:YAG SCF amplifier phase. Consequently, Should the conversion effectiveness of 31% from NIR to DUV could be however maintained at this increased power problem, the normal output power in the DUV laser at 258 nm may very well be over 20 W, which would be described as a remarkable energy degree to the DUV laser and cause the unanticipated DUV laser machining effects. What's more, for top-ability DUV laser, the UV injury on the nonlinear crystal, such as the Home windows for CLBO crystal and also the mirrors, is another vital parameter for long-lasting and steady operation.
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LBO can also be an outstanding nonlinear crystal which is always applied to the SHG through the NIR into the eco-friendly. The DUV laser is often understood by two levels of SFG within the LBO crystals considering that there check here is not any section-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm for the DUV right by SHG [16]. Just lately, the NSBBF crystal has also demonstrated its likely to get a high conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff with the NSBBF are Just about much like These of CLBO [seventeen].
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Tunable ultraviolet laser supply determined by reliable-condition dye laser know-how and CsLiB6O10 harmonic era
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