5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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Having said that, so as to approach the crystal is quite advanced production methods are essential. Since the dawn of this crystal, engaged on this challenge, we at the moment are the one business on this planet that may be processed Within this crystal.
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The normal electricity in the NIR laser nonetheless has the likely for being enhanced to tens of watts such as 70 W [26] Should the double-move configuration might be used for your Yb:YAG SCF amplifier stage. Hence, If your conversion efficiency of 31% from NIR to DUV can be even now managed at this larger power issue, the standard output electrical power with the DUV laser at 258 nm may very well be greater than 20 W, which would certainly be a outstanding electrical power stage for that DUV laser and bring on the unanticipated DUV laser machining success. Moreover, for high-power DUV laser, the UV problems of your nonlinear crystal, such as the windows for CLBO crystal along with the mirrors, is an additional crucial parameter for long lasting and stable Procedure.
Then again, the beam excellent of the better power DUV laser would turn out to be worse as a result of far more really serious thermal and nonlinear outcomes. Consequently, the frequency conversion procedures ought to be very carefully created to mitigate the aforementioned effects. Thus, a high-ability DUV laser within the FHG of 1 μm with a fantastic beam excellent may be obtained and can be helpful for obtaining the shorter wavelength DUV lasers for instance 193 nm by SFG.
LBO can also be a superb nonlinear crystal which is usually applied to the SHG through the NIR to your eco-friendly. The DUV laser is normally recognized by two stages of SFG in the LBO crystals because there isn't any phase-matching angle for LBO to transform the eco-friendly laser at 515 nm or 532 nm towards the DUV directly by SHG [sixteen]. Not long ago, the NSBBF crystal has also demonstrated its possible to acquire a significant conversion effectiveness from 532 nm to 266 nm. The wander-off angle and deff on the NSBBF are Nearly comparable to Individuals of CLBO [seventeen].
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics from the Nd:YAG fundamental laser wavelength. So that you can increase the injury threshold, low CLBO floor roughness, by ultra-precision machining, is required. As the CLBO crystal has simple hydroscopic reaction and micro scratches in machining, extremely-precise machining of your CLBO crystal is often a hard technical trouble.
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The conversion effectiveness from basic NIR to DUV is from five% to 36% according to the documented leads to Table 1. Raising the conversion effectiveness will reduce the burden on the look and set up of the elemental laser amplifier along with the electric powered ability intake. A fantastic beam excellent of the fundamental laser will even add into the increasing from the conversion performance and also the appropriate ability intensity from the NIR and eco-friendly laser during the SHG and FHG procedure, respectively. The very best conversion efficiencies from NIR to eco-friendly and green to DUV laser by use of CLBO crystal are 70% and all over 50%, respectively [12], click here which corresponds for the conversion effectiveness of 35% from elementary to DUV.
The event with the 193-nm laser was shown by levels of SFG. To be able to scale the DUV laser ability efficiently, a completely new notion with the 193-nm DUV laser generation is presented based upon the diamond Raman laser.