CLBO Crystal Can Be Fun For Anyone
CLBO Crystal Can Be Fun For Anyone
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As an illustration, The existing concave OC could be replaced by a aircraft mirror which could mitigate the ability density around the surface of M1 as well as diamond. Moreover, working with higher problems threshold coatings for M1 and diamond would also Enhance the output electrical power with none damages. Then, the NIR laser on the 2nd Stokes wavelength could be higher ample, in addition to its good beam excellent, to deliver the final DUV laser at 193 nm with a higher average electrical power.
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Due to the thermal lens effect from the good-point out lasers, In case the heating administration is insufficient, It is far from effortless to acquire the strong-state laser by using a high electric power and a higher beam top quality simultaneously. A short while ago, with the development of the thin disk laser and one-crystal fiber (SCF) laser, a substantial-power laser at the fundamental wavelength (1 μm) were realized with a great beam top quality In spite of a TEM00 mode beam [4,24], which would be superior candidates for the elemental with the DUV laser generation. A further candidate for the fundamental is the superior-ability fiber laser which could possibly be attained by coherent beam mixture with M2 price less than one.
On one other side, the ability scaling in the NIR laser is an additional part to enhance the typical ability of the 193-nm DUV laser. Due to the insufficient the high-electrical power amplification Remedy of the NIR laser (one example is at 1553 nm), nonlinear frequency processes including optical parameter oscillation (OPO) may very well be applied to develop a wavelength converter by shifting the wavelength from one μm to the specified wavelength in addition to acquiring relative bigger electric power [21]. Recently, a diamond Raman laser confirmed its capacity in attaining a superior electric power along with a higher conversion performance at the 1st Stokes in the one-μm laser [22,23], which suggests the likelihood to get utilized within the 193-nm DUV laser technology as a consequence of its large Raman get and enormous frequency shift.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics on the Nd:YAG elementary laser wavelength. So as to enrich the problems threshold, very low CLBO floor roughness, by ultra-precision machining, is needed. Since the CLBO crystal has effortless hydroscopic response and micro scratches in machining, extremely-precise machining from the CLBO crystal is a complicated specialized problem.
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