New Step by Step Map For CLBO Crystal
New Step by Step Map For CLBO Crystal
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All-stable-point out ultraviolet lasers are actually greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and medication for the benefits of tiny volume, lengthy lifetime, significant effectiveness, excellent beam high quality, wide tuning and narrow spectral line, etc. Employing superior power close to-infrared coherent light-weight supply as the elemental frequency supply based on nonlinear tuning technology, making ultraviolet coherent radiation by multistage frequency conversion is thought to be an essential strategy to establish the ultraviolet coherent light supply.
As compared to BBO it capabilities much larger spectral and temperature acceptance, greater angle tolerance, and also a more compact wander-off angle. from 3289 $ delivery
Based on the proof-of-theory experiment, the conversion efficiency of 23% implied the potential for achieving large-electric power at the 2nd Stokes wavelength from the Raman laser. In the event the pump laser of 1078 nm may be obtained at the normal ability of fifty W, the output electricity of its 2nd Stokes wavelength at 1512 nm could possibly be over 10 W. The look in the Raman laser cavity needs to be optimized to be able to avoid the damage of the M1 and diamond floor.
The real key problem of ultraviolet coherent light resource mainly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the conditions for frequency transformation, so the growth, size, harm resistance, conversion performance and allowable parameter number of nonlinear optical crystal are demanded more and more.
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Due to the thermal lens influence while in the sound-point out lasers, Should the heating administration is inadequate, It's not necessarily straightforward to acquire the strong-point out laser having a higher power plus a high beam good quality at the same time. Lately, with the development of The skinny disk laser and one-crystal fiber (SCF) laser, a high-electrical power laser at the basic wavelength (one μm) were understood with a good beam good quality In spite of a TEM00 manner beam [four,24], which might be superior candidates for the basic on the DUV laser era. One more applicant for the fundamental will be the higher-energy fiber laser which could be accomplished by coherent beam combination with M2 benefit a lot less than 1.
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Furthermore, combining the stable-state laser with other nonlinear approach such as stimulated Raman scattering, NIR lasers could possibly be obtained at new wavelengths with high electrical power and significant beam quality, which was tested from the proof-of-principle experiment. This Raman laser scheme offers a fresh route to the large-electricity DUV laser, Specially at the wavelength of 193 nm.
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The conversion efficiency from fundamental NIR to DUV is from five% to 36% according to the described results in Desk one. Escalating the conversion performance will reduce the load on the look and setup of the basic laser amplifier and also the electric electric power consumption. A superb beam high-quality of the fundamental laser may even add into the growing on the conversion effectiveness together with the right power intensity on the NIR and environmentally friendly laser in the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to green and green to DUV laser by usage of CLBO crystal are 70% and all over fifty%, respectively [twelve], which corresponds into the conversion effectiveness of 35% from basic to DUV.
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