The smart Trick of CLBO Crystal That No One is Discussing
The smart Trick of CLBO Crystal That No One is Discussing
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All-stable-point out ultraviolet lasers have been widely used in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of smaller quantity, prolonged life, high efficiency, great beam top quality, vast tuning and narrow spectral line, etc. Utilizing superior electric power in the vicinity of-infrared coherent light-weight source as the elemental frequency source according to nonlinear tuning technology, making ultraviolet coherent radiation by multistage frequency conversion is thought to be a crucial method to develop the ultraviolet coherent gentle resource.
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We summarized The existing improvement status of your substantial-energy DUV laser both of those for the wavelength of FHG in the one-μm laser and at 193 nm. The latest enhancement in the good-state/fiber laser, as well as the nonlinear optical crystals, prompts not merely the normal power and also the beam high-quality (coherence) in the DUV lasers to an unparalleled level.
The standard ability on the NIR laser still has the potential to be enhanced to tens of watts for example 70 W [26] In the event the double-pass configuration may be utilized with the Yb:YAG SCF amplifier stage. Hence, If your conversion efficiency of 31% from NIR to DUV may very well be nonetheless taken care of at this better energy affliction, the average output energy with the DUV laser at 258 nm could possibly be greater than 20 W, which might be a extraordinary electric power amount for your DUV laser and produce the unanticipated DUV laser machining results. Also, for top-electric power DUV laser, the UV hurt of your nonlinear crystal, including the windows for CLBO crystal plus the mirrors, is an additional essential parameter for long-lasting and secure Procedure.
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LBO can be a fantastic nonlinear crystal which is often applied to the SHG within the NIR for the eco-friendly. The DUV laser will likely be realized by two CLBO Crystal phases of SFG during the LBO crystals given that there is no period-matching angle for LBO to transform the inexperienced laser at 515 nm or 532 nm to your DUV specifically by SHG [sixteen]. A short while ago, the NSBBF crystal has also shown its prospective to acquire a significant conversion effectiveness from 532 nm to 266 nm. The stroll-off angle and deff in the NSBBF are Virtually similar to those of CLBO [seventeen].
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In addition, combining the solid-point out laser with other nonlinear course of action including stimulated Raman scattering, NIR lasers can be accomplished at new wavelengths with substantial ability and higher beam good quality, which was analyzed via the evidence-of-basic principle experiment. This Raman laser plan provides a brand new route to the higher-energy DUV laser, especially in the wavelength of 193 nm.
Tunable ultraviolet laser source dependant on good-point out dye laser technological know-how and CsLiB6O10 harmonic era
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