The Definitive Guide to CLBO Crystal
The Definitive Guide to CLBO Crystal
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Within this paper, The brand new lapping slurry and sprucing slurry are released. As well as the deliquescence diploma of CLBO is fallen to least expensive. A brand new Doing the job technological innovation can be adopted. Immediately after tough sprucing, the focus of extremely-precision sharpening slurry is greater thoroughly. So does the ultra-precision sprucing velocity, as well as wiping velocity is quicker in comparison to the deliquescence pace. The CLBO crystal floor roughness can realize 1nm and retain the floor excellent nicely. Access as a result of your establishment
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For illustration, The present concave OC could be replaced by a aircraft mirror which could mitigate the ability density around the floor of M1 along with the diamond. In addition, utilizing superior injury threshold coatings for M1 and diamond would also Increase the output electricity without any damages. Then, the NIR laser for the 2nd Stokes wavelength could possibly be large more than enough, together with its great beam quality, to crank out the ultimate DUV laser at 193 nm with a high ordinary energy.
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On the other facet, the facility scaling in the NIR laser is yet another element to improve the ordinary electrical power on the 193-nm DUV laser. Due to the not enough the substantial-electric power amplification Alternative in the NIR laser (by way of example at 1553 nm), nonlinear frequency processes including optical parameter oscillation (OPO) could possibly be applied to build a wavelength converter by shifting the wavelength from one μm to the desired wavelength and also acquiring relative greater energy [21]. Lately, a diamond Raman laser confirmed its skill in accomplishing a high ability along with a substantial conversion efficiency in the 1st Stokes in the 1-μm laser [22,23], which implies the likelihood to become applied from the 193-nm DUV laser generation thanks to its higher Raman more info get and large frequency change.
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What's more, combining the sound-state laser with other nonlinear course of action for instance stimulated Raman scattering, NIR lasers may be attained at new wavelengths with large ability and significant beam excellent, which was examined via the evidence-of-basic principle experiment. This Raman laser scheme provides a different route to the significant-electrical power DUV laser, Specially in the wavelength of 193 nm.
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The conversion effectiveness from fundamental NIR to DUV is from 5% to 36% in accordance with the documented leads to Table 1. Escalating the conversion efficiency will lessen the load on the design and setup of the elemental laser amplifier together with the electrical electric power intake. An excellent beam quality of the basic laser may also add on the escalating in the conversion performance along with the suitable power intensity of your NIR and eco-friendly laser from the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to inexperienced and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all-around 50%, respectively [twelve], which corresponds to the conversion efficiency of 35% from basic to DUV.
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