The best Side of CLBO Crystal
The best Side of CLBO Crystal
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All-good-state ultraviolet lasers happen to be broadly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of small volume, extended life, superior efficiency, excellent beam quality, extensive tuning and narrow spectral line, and many others. Using significant ability close to-infrared coherent gentle resource as the basic frequency supply dependant on nonlinear tuning know-how, making ultraviolet coherent radiation by multistage frequency conversion is viewed as a significant strategy to create the ultraviolet coherent gentle source.
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The normal energy with the NIR laser nonetheless has the probable to be improved to tens of watts for instance 70 W [26] if the double-pass configuration may be used with the Yb:YAG SCF amplifier phase. Therefore, In case the conversion effectiveness of 31% from NIR to DUV can be still maintained at this greater energy situation, the normal output electric power with the DUV laser at 258 nm may very well be much more than twenty W, which would be considered a impressive electric power amount with the DUV laser and lead to the unanticipated DUV laser machining success. What's more, for top-power DUV laser, the UV damage of the nonlinear crystal, such as the Home windows for CLBO crystal along with the mirrors, is an additional crucial parameter for long lasting and stable operation.
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Due to thermal lens result within the stable-point out lasers, if the heating management is inadequate, It's not at all simple to acquire the sound-point out laser with a significant electrical power in addition to a large beam quality concurrently. Recently, with the development of The skinny disk laser and one-crystal fiber (SCF) laser, a large-electric power laser at the basic wavelength (one μm) were understood with a very good beam high quality Despite a TEM00 method beam [4,24], which would be excellent candidates for the basic with the DUV laser era. A different prospect for the basic could be the significant-electric power fiber laser which could possibly be reached by coherent beam mixture with M2 value less than one.
On another side, the facility scaling of your NIR laser is an additional facet to increase the ordinary electric power in the 193-nm DUV laser. Because of the not enough the substantial-energy amplification Alternative on the NIR laser (by way of example at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) may be placed on create a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength and also getting relative greater electricity [21]. Recently, a diamond Raman laser showed its potential in acquiring a higher ability as well as a substantial conversion effectiveness for the 1st Stokes with the one-μm laser [22,23], which suggests the likelihood to get utilized while in the 193-nm DUV laser era as a consequence of its superior Raman get and huge frequency shift.
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Tunable ultraviolet laser resource according to solid-point out dye laser technological innovation and CsLiB6O10 harmonic generation
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