5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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All-strong-state ultraviolet lasers happen to be extensively used in the fields of mechanical flaw detection, lithography, micromachining and drugs for the advantages of small quantity, long lifestyle, high performance, very good beam top quality, broad tuning and slender spectral line, etcetera. Using higher power near-infrared coherent gentle source as the basic frequency source dependant on nonlinear tuning technological know-how, making ultraviolet coherent radiation by multistage frequency conversion is considered an important strategy to build the ultraviolet coherent light-weight source.
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We summarized The existing advancement status of your higher-energy DUV laser both for the wavelength of FHG from the one-μm laser and at 193 nm. The the latest advancement of your sound-point out/fiber laser, in addition to the nonlinear optical crystals, prompts not only the normal energy and also the beam quality (coherence) in the DUV lasers to an unprecedented stage.
The normal electricity in the NIR laser nevertheless has the prospective to be enhanced to tens of watts including 70 W [26] if the double-move configuration could be used for the Yb:YAG SCF amplifier phase. Hence, If your conversion effectiveness of 31% from NIR to DUV can be even now preserved at this bigger power issue, the common output energy from the DUV laser at 258 nm may be more than 20 W, which might become a extraordinary energy level for the DUV laser and bring about the unanticipated DUV laser machining success. What's more, for top-electricity DUV laser, the UV destruction of the nonlinear crystal, such as the Home windows for CLBO crystal and the mirrors, is another significant parameter for long run and secure operation.
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LBO is likewise an excellent nonlinear crystal which is usually applied to the SHG with the NIR to the inexperienced. The DUV laser is often recognized by two levels of SFG during the LBO crystals because there is absolutely no section-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm into the DUV directly website by SHG [sixteen]. A short while ago, the NSBBF crystal has also revealed its opportunity to get a significant conversion effectiveness from 532 nm to 266 nm. The wander-off angle and deff of your NSBBF are Just about just like All those of CLBO [17].
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