Examine This Report on CLBO Crystal
Examine This Report on CLBO Crystal
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All-reliable-condition ultraviolet lasers are actually greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and medication for the advantages of compact quantity, prolonged lifetime, superior performance, fantastic beam good quality, large tuning and slender spectral line, and many others. Using high power in close proximity to-infrared coherent mild source as the basic frequency source dependant on nonlinear tuning technological know-how, creating ultraviolet coherent radiation by multistage frequency conversion is regarded as a significant method to acquire the ultraviolet coherent light supply.
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We summarized The existing growth status of the significant-electricity DUV laser each within the wavelength of FHG on the one-μm laser and at 193 nm. The new advancement of your reliable-point out/fiber laser, plus the nonlinear optical crystals, prompts not only the common ability but additionally the beam excellent (coherence) with the DUV lasers to an unprecedented amount.
For instance, The existing concave OC could get replaced by a plane mirror which could mitigate the facility density over the floor of M1 along with the diamond. Furthermore, using higher destruction threshold coatings for M1 and diamond would also Enhance the output energy without any damages. Then, the NIR laser with the 2nd Stokes wavelength could possibly be significant adequate, in addition to its good beam high quality, to create the ultimate DUV laser at 193 nm having a significant common ability.
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LBO is likewise a great nonlinear crystal which is usually placed on the SHG from the NIR on the environmentally friendly. The DUV laser is normally recognized by two levels of SFG in the LBO crystals considering that there is not any phase-matching angle for LBO to convert the green laser at 515 nm or 532 nm for the DUV right by SHG [16]. Not long ago, the NSBBF crystal has also demonstrated its opportunity to acquire a superior conversion performance from 532 nm to 266 nm. The stroll-off angle and deff on the NSBBF are Practically much like Individuals of CLBO [17].
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The beam profile demonstrated in Determine 7b shown a good beam top quality as among the list of deserves of Raman laser, which might be effective to produce a 193-nm DUV laser with a high quality beam.
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