A Review Of CLBO Crystal
A Review Of CLBO Crystal
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During this paper, The brand new lapping slurry and polishing slurry are introduced. And the deliquescence degree of CLBO is fallen to most affordable. A completely new Operating technological innovation can also be adopted. Right after tough sprucing, the concentration of ultra-precision polishing slurry is greater properly. So does the ultra-precision polishing velocity, as well as wiping velocity is quicker than the deliquescence velocity. The CLBO crystal floor roughness can obtain 1nm and hold the surface area high quality well. Accessibility via your establishment
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We summarized The existing growth status of your large-electric power DUV laser equally in the wavelength of FHG of the 1-μm laser and at 193 nm. The the latest growth from the good-condition/fiber laser, in addition to the nonlinear optical crystals, prompts not simply the standard electricity but also the beam quality (coherence) in the DUV lasers to an unparalleled stage.
As an example, The existing concave OC could be replaced by a airplane mirror which could mitigate the ability density about the surface of M1 and also the diamond. Furthermore, working with high problems threshold coatings for M1 and diamond would also Enhance the output energy with none damages. Then, the NIR laser on the 2nd Stokes wavelength could be substantial enough, as well as its fantastic beam top quality, to crank out the ultimate DUV laser at 193 nm using a large regular energy.
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As a result of thermal lens impact in the good-condition lasers, if the heating administration is inadequate, It's not at all easy to acquire the good-condition laser having a higher electricity along with a high beam good quality at the same time. Lately, with the development of the thin disk laser and solitary-crystal fiber (SCF) laser, a significant-power laser at the fundamental wavelength (1 μm) had been realized with a superb beam quality Despite a TEM00 method beam [four,24], which might be good candidates for the fundamental of the DUV laser era. Yet another applicant for the basic would be the substantial-electric power fiber laser which can be obtained by coherent beam blend with M2 worth under 1.
On the opposite aspect, the ability scaling on the NIR laser is an additional facet to boost the typical electrical power from the 193-nm DUV laser. As a result of lack of the significant-electrical power amplification solution on the NIR laser (as an example at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) could possibly be placed on build a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength as well as acquiring relative increased power [21]. Lately, a diamond Raman laser showed its potential in acquiring a higher electrical power as well as a higher conversion efficiency within the 1st Stokes from the 1-μm laser [22,23], which suggests the likelihood being applied while in the 193-nm DUV laser era as a consequence of its high Raman get and huge frequency shift.
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What's more, combining the reliable-state laser with other nonlinear system such as stimulated Raman scattering, NIR lasers may very well be attained at new wavelengths with significant ability and large beam high quality, which was tested via the proof-of-principle experiment. This Raman laser scheme presents a new route to the high-ability DUV laser, Specially with the wavelength of 193 nm.
The beam more info profile shown in Figure 7b shown a very good beam high quality as among the list of deserves of Raman laser, which might be useful to produce a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as large as that of KDP. CLBO crystals is usually grown in the stoichiometric melt with decrease viscosity.
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