Indicators on CLBO Crystal You Should Know
Indicators on CLBO Crystal You Should Know
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In this paper, the new lapping slurry and sharpening slurry are released. As well as the deliquescence degree of CLBO is fallen to lowest. A brand new working technologies is also adopted. Just after rough sharpening, the concentration of ultra-precision sprucing slurry is increased properly. So does the extremely-precision sprucing pace, as well as the wiping velocity is faster when compared to the deliquescence velocity. The CLBO crystal surface area roughness can attain 1nm and retain the floor good quality nicely. Access by means of your institution
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We summarized The present growth status with the higher-electric power DUV laser the two within the wavelength of FHG on the one-μm laser and at 193 nm. The latest progress in the solid-point out/fiber laser, together with the nonlinear optical crystals, prompts don't just the standard electricity but additionally the beam good quality (coherence) of your DUV lasers to an unprecedented level.
As an example, The existing concave OC could be replaced by a plane mirror which could mitigate the power density to the surface area of M1 along with the diamond. Moreover, using superior problems threshold coatings for M1 and diamond would also Enhance the output electricity with no damages. Then, the NIR laser at the 2nd Stokes wavelength may very well be higher plenty of, along with its great beam excellent, to crank out the ultimate DUV laser at 193 nm using a significant average electrical power.
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Due to thermal lens effect within the solid-point out lasers, If your heating management is inadequate, It is far from uncomplicated to get the solid-condition laser using a superior electricity plus a substantial beam quality concurrently. Recently, with the development of the thin disk laser and one-crystal fiber (SCF) laser, a high-electricity laser at the elemental wavelength (one μm) were realized with an excellent beam excellent Despite having a TEM00 manner beam [four,24], which might be good candidates for the basic in the DUV laser era. Yet another candidate for the basic is definitely the high-energy fiber laser which can be realized by coherent beam blend with M2 value lower than one.
On another aspect, the power scaling of your NIR laser is another part to boost the average power of your 193-nm DUV laser. Mainly because of the deficiency of the higher-power amplification Resolution in the NIR laser (as an example at 1553 nm), nonlinear frequency processes such as optical parameter oscillation (OPO) can be applied to establish a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength and obtaining relative increased power [21]. Not long ago, a diamond Raman laser confirmed its capacity in accomplishing a large electrical power and also a superior conversion performance at the 1st Stokes from the 1-μm laser [22,23], which implies the chance to generally be utilized in the 193-nm DUV laser technology because of its high Raman attain and enormous frequency shift.
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Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as large as that of KDP. CLBO crystals is often grown within the stoichiometric melt with lessen viscosity.
The event in the 193-nm laser was shown by stages of SFG. In an effort to scale the DUV laser electricity proficiently, a brand new strategy of the 193-nm DUV laser era is offered dependant on the diamond Raman laser.