The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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All-solid-state ultraviolet lasers are already widely Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for the advantages of tiny quantity, long lifestyle, large efficiency, excellent beam good quality, huge tuning and slim spectral line, etcetera. Employing significant electric power in close proximity to-infrared coherent light resource as the basic frequency source based on nonlinear tuning technology, creating ultraviolet coherent radiation by multistage frequency conversion is regarded as a significant method to acquire the ultraviolet coherent light-weight source.
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We summarized the current development position of your superior-electric power DUV laser both equally with the wavelength of FHG from the one-μm laser and at 193 nm. The latest development in the good-state/fiber laser, together with the nonlinear optical crystals, prompts not merely the standard electric power and also the beam high quality (coherence) from the DUV lasers to an unparalleled level.
The typical electrical power from the NIR laser still has the opportunity being improved to tens of watts such as 70 W [26] In case the double-move configuration can be used for your Yb:YAG SCF amplifier phase. For this reason, In case the conversion efficiency of 31% from NIR to DUV can be even now taken care of at this increased power issue, the normal output electrical power in the DUV laser at 258 nm may very well be greater than 20 W, which would be described as a remarkable energy degree for your DUV laser and bring on the unanticipated DUV laser machining outcomes. Additionally, for prime-ability DUV laser, the UV damage in the nonlinear crystal, including the windows for CLBO crystal as well as the mirrors, is an additional crucial parameter for long-term and secure Procedure.
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LBO is also a superb nonlinear crystal which is usually placed on the SHG from the NIR into the eco-friendly. The DUV laser is usually realized by two phases of SFG during the LBO crystals given that there is not any phase-matching angle for LBO to convert the eco-friendly laser at 515 nm or 532 nm to the DUV straight by SHG [sixteen]. Recently, the NSBBF crystal has also revealed its probable to get a high conversion performance from 532 nm to 266 nm. The stroll-off angle and deff of your NSBBF are Nearly similar to People of CLBO [seventeen].
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The heart beat length of the CLBO Crystal 2nd Stokes gentle was shortened to 5 ns as demonstrated in Determine 7a, an individual-shot picture with the oscilloscope, which can be a standard phenomenon in Raman laser [44] even though the pulse length of your pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics in the Nd:YAG fundamental laser wavelength. To be able to improve the damage threshold, low CLBO area roughness, by ultra-precision machining, is needed. As the CLBO crystal has uncomplicated hydroscopic reaction and micro scratches in machining, extremely-exact machining of the CLBO crystal is usually a hard technical trouble.
Tunable ultraviolet laser supply determined by stable-condition dye laser know-how and CsLiB6O10 harmonic technology
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The development with the 193-nm laser was shown by stages of SFG. So as to scale the DUV laser electrical power effectively, a whole new concept in the 193-nm DUV laser era is introduced according to the diamond Raman laser.