All-reliable-condition ultraviolet lasers have already been commonly used in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of compact quantity, long existence, substantial effectiveness, very good beam excellent, wide tuning and slender spectral line, and so forth. Using high ability around-infrared coherent light supply as the basic frequency source dependant on nonlinear tuning technology, generating ultraviolet coherent radiation by multistage frequency conversion is regarded as a very important technique to build the ultraviolet coherent light-weight supply.
Compared to BBO it features larger sized spectral and temperature acceptance, much better angle tolerance, and also a smaller walk-off angle. from 3289 $ shipping and delivery
According to the proof-of-principle experiment, the conversion effectiveness of 23% implied the possibility of attaining substantial-energy at the second Stokes wavelength in the Raman laser. If your pump laser of 1078 nm could possibly be received at the typical electricity of fifty W, the output energy of its 2nd Stokes wavelength at 1512 nm could be greater than ten W. The look of your Raman laser cavity should be optimized as a way to steer clear of the hurt in the M1 and diamond surface.
For instance, the current concave OC could be replaced by a airplane mirror which could mitigate the facility density to the floor of M1 plus the diamond. Also, making use of higher problems threshold coatings for M1 and diamond would also improve the output electric power without any damages. Then, the NIR laser within the 2nd Stokes wavelength may be significant plenty of, together with its fantastic beam quality, to crank out the final DUV laser at 193 nm with a substantial typical electrical power.
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LBO can be an excellent nonlinear crystal which is usually applied to the SHG in the NIR into the green. The DUV laser is often understood by two levels of SFG within the LBO crystals considering that there is not any phase-matching angle for LBO to transform the green laser at 515 nm or 532 nm to the DUV straight by SHG [16]. Recently, the NSBBF crystal has also shown its opportunity to obtain a significant conversion performance from 532 nm to 266 nm. The wander-off angle and deff with the NSBBF are Pretty much comparable to All those of CLBO [seventeen].
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The heart beat length of the second Stokes light-weight was shortened to 5 ns as revealed in Figure 7a, only one-shot photo in the oscilloscope, which happens to be website a typical phenomenon in Raman laser [forty four] whilst the heart beat duration on the pump laser was ten ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of the Nd:YAG fundamental laser wavelength. As a way to increase the hurt threshold, very low CLBO area roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, extremely-exact machining from the CLBO crystal is a tough technological challenge.
The beam profile revealed in Figure 7b demonstrated a very good beam top quality as on the list of deserves of Raman laser, which would be helpful to crank out a 193-nm DUV laser with a top quality beam.
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The event of your 193-nm laser was demonstrated by levels of SFG. So that you can scale the DUV laser energy properly, a new notion with the 193-nm DUV laser technology is introduced according to the diamond Raman laser.