The Definitive Guide to CLBO Crystal
The Definitive Guide to CLBO Crystal
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All-stable-condition ultraviolet lasers have been extensively used in the fields of mechanical flaw detection, lithography, micromachining and medication for the advantages of modest volume, extensive lifestyle, large performance, superior beam high-quality, wide tuning and slim spectral line, and so on. Employing significant electricity near-infrared coherent light-weight supply as the elemental frequency resource based on nonlinear tuning technological innovation, building ultraviolet coherent radiation by multistage frequency conversion is thought to be a crucial method to acquire the ultraviolet coherent light resource.
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We summarized The existing advancement position on the higher-ability DUV laser equally on the wavelength of FHG of the 1-μm laser and at 193 nm. The recent progress from the good-state/fiber laser, together with the nonlinear optical crystals, prompts don't just the common power but will also the beam good quality (coherence) on the DUV lasers to an unprecedented amount.
As an example, the current concave OC could get replaced by a airplane mirror which could mitigate the power density on the surface area of M1 as well as the diamond. What's more, making use of high injury threshold coatings for M1 and diamond would also improve the output power with no damages. Then, the NIR laser with the 2nd Stokes wavelength could be significant sufficient, and its fantastic beam top quality, to crank out the ultimate DUV laser at 193 nm using a significant average electrical power.
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LBO is additionally an excellent nonlinear crystal which is usually placed on the SHG in the NIR on the green. The DUV laser is generally recognized by two levels of SFG within the LBO crystals considering that there's no stage-matching angle for LBO to convert the eco-friendly laser at 515 nm or 532 nm for the DUV right by SHG [16]. Just lately, the NSBBF crystal has also proven its prospective to obtain a higher conversion efficiency from 532 nm to 266 nm. The walk-off angle and deff of your NSBBF are Pretty much just like Those people of CLBO [17].
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of your Nd:YAG essential laser wavelength. To be able to improve the harm threshold, minimal CLBO surface area roughness, by ultra-precision machining, is needed. As the CLBO crystal has quick hydroscopic response and micro scratches in machining, ultra-specific machining in the CLBO crystal is actually a tough technological dilemma.
Tunable ultraviolet laser source depending on reliable-condition dye laser know-how and CsLiB6O10 harmonic technology
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