The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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In this paper, the new lapping slurry and sprucing slurry are launched. As well as deliquescence diploma of CLBO is fallen to lowest. A fresh Doing the job engineering is also adopted. Right after rough sharpening, the concentration of ultra-precision polishing slurry is elevated correctly. So does the extremely-precision polishing speed, and also the wiping speed is faster as opposed to deliquescence pace. The CLBO crystal floor roughness can reach 1nm and continue to keep the surface area good quality effectively. Obtain by way of your institution
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For example, The existing concave OC could be replaced by a aircraft mirror which could mitigate the facility density to the surface of M1 along with the diamond. Additionally, using substantial destruction threshold coatings for M1 and diamond would also improve the output electrical power without any damages. Then, the NIR laser with the 2nd Stokes wavelength could be higher more than enough, along with its superior beam quality, to crank out the ultimate DUV laser at 193 nm having a substantial common ability.
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Due to thermal lens result within the good-condition lasers, If your heating management is insufficient, It is far from straightforward to acquire the good-point out laser by using a high electrical power in addition to a higher beam good quality at the same time. A short while ago, with the development of The skinny disk laser and solitary-crystal fiber (SCF) laser, a significant-power laser at the fundamental wavelength (1 μm) were understood with a good beam high quality Despite a TEM00 mode beam [4,24], which would be great candidates for the fundamental of the DUV laser technology. A different applicant for the fundamental may be the significant-power fiber laser which could be obtained by coherent beam mixture with M2 value a more info lot less than one.
On the opposite side, the ability scaling in the NIR laser is yet another aspect to enhance the regular electricity from the 193-nm DUV laser. Due to the deficiency of the higher-ability amplification Remedy of your NIR laser (as an example at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) may very well be placed on establish a wavelength converter by shifting the wavelength from one μm to the specified wavelength in addition to obtaining relative higher electricity [21]. A short while ago, a diamond Raman laser confirmed its ability in reaching a higher electrical power plus a substantial conversion effectiveness on the 1st Stokes from the 1-μm laser [22,23], which suggests the possibility to become used from the 193-nm DUV laser technology thanks to its significant Raman achieve and large frequency change.
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Furthermore, combining the stable-point out laser with other nonlinear method for example stimulated Raman scattering, NIR lasers could possibly be realized at new wavelengths with high electrical power and substantial beam excellent, which was tested through the proof-of-principle experiment. This Raman laser scheme offers a brand new route to the high-energy DUV laser, Particularly in the wavelength of 193 nm.
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