New Step by Step Map For CLBO Crystal
New Step by Step Map For CLBO Crystal
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All-sound-condition ultraviolet lasers are already widely used in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of little quantity, extensive existence, superior effectiveness, very good beam high-quality, wide tuning and slender spectral line, etc. Utilizing high energy near-infrared coherent gentle resource as the elemental frequency source based on nonlinear tuning technology, making ultraviolet coherent radiation by multistage frequency conversion is considered to be a significant technique to establish the ultraviolet coherent light source.
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We summarized the current progress standing of your significant-power DUV laser equally in the wavelength of FHG of the 1-μm laser and at 193 nm. The the latest enhancement with the sound-point out/fiber laser, together with the nonlinear optical crystals, prompts not only the normal electricity but will also the beam high quality (coherence) on the DUV lasers to an unprecedented stage.
The standard power of your NIR laser nonetheless has the possible to become improved to tens of watts including 70 W [26] If your double-go configuration may be used with the Yb:YAG SCF amplifier phase. For this reason, When the conversion performance of 31% from NIR to DUV might be nonetheless preserved at this bigger energy condition, the typical output energy in the DUV laser at 258 nm can be greater than 20 W, which would become a extraordinary power stage for the DUV laser and result in the unanticipated DUV laser machining effects. Moreover, for high-energy DUV laser, the UV harm from the nonlinear crystal, including the Home windows for CLBO crystal plus the mirrors, is an additional critical parameter for long-term and secure operation.
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LBO is also a fantastic nonlinear crystal which is often applied to the SHG within the NIR for the inexperienced. The DUV laser is usually understood by two stages of SFG inside the LBO crystals due to the fact there is no phase-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm to the DUV directly by SHG [sixteen]. Recently, the NSBBF crystal has also shown its possible to acquire a superior conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff with the NSBBF are Just about just like All those of CLBO [17].
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics with the Nd:YAG elementary laser wavelength. So as to increase the injury threshold, reduced CLBO Crystal CLBO surface area roughness, by extremely-precision machining, is needed. As the CLBO crystal has straightforward hydroscopic response and micro scratches in machining, extremely-specific machining of the CLBO crystal is really a difficult technical issue.
Tunable ultraviolet laser supply based upon stable-condition dye laser know-how and CsLiB6O10 harmonic technology
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