CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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We summarized The existing development position with the higher-ability DUV laser equally in the wavelength of FHG of your 1-μm laser and at 193 nm. The recent growth with the sound-point out/fiber laser, in addition to the nonlinear optical crystals, prompts don't just the normal electrical power but also the beam good quality (coherence) of the DUV lasers to an unprecedented degree.
As an illustration, The present concave OC could be replaced by a airplane mirror which could mitigate the ability density around the area of M1 as well as the diamond. In addition, utilizing higher damage threshold coatings for M1 and diamond would also improve the output power with none damages. Then, the NIR laser for the 2nd Stokes wavelength could possibly be higher enough, and also its good beam good quality, to generate the final DUV laser at 193 nm that has a higher normal energy.
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LBO can be an excellent nonlinear crystal which is usually placed on the SHG from your NIR into the eco-friendly. The DUV laser is normally understood by two levels of SFG inside the LBO crystals considering the fact that there is absolutely no period-matching angle for LBO to transform the inexperienced laser at 515 nm or 532 nm to your DUV instantly by SHG [sixteen]. Recently, the NSBBF crystal has also shown its potential to acquire a large conversion efficiency from 532 nm to 266 nm. The walk-off angle and deff of your NSBBF are Pretty much just like People of CLBO [seventeen].
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What's more, combining the strong-condition laser with other nonlinear system including stimulated Raman scattering, NIR lasers might be obtained at new wavelengths with higher electrical power and substantial beam excellent, which was examined with the proof-of-theory experiment. This Raman laser scheme offers a different path to the substantial-electricity DUV laser, Specially on the wavelength of 193 nm.
The beam profile click here demonstrated in Determine 7b shown a very good beam top quality as among the list of deserves of Raman laser, which might be effective to make a 193-nm DUV laser with a high quality beam.
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