CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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All-reliable-state ultraviolet lasers are greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of smaller quantity, lengthy daily life, significant efficiency, great beam high quality, wide tuning and slender spectral line, and so forth. Utilizing substantial electrical power near-infrared coherent light-weight resource as the basic frequency source determined by nonlinear tuning technological innovation, creating ultraviolet coherent radiation by multistage frequency conversion is thought to be a vital approach to develop the ultraviolet coherent mild supply.
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We summarized The existing growth status in the high-ability DUV laser equally in the wavelength of FHG of the one-μm laser and at 193 nm. The recent advancement of the good-condition/fiber laser, plus the nonlinear optical crystals, prompts not merely the typical power and also the beam good quality (coherence) of the DUV lasers to an unprecedented degree.
The typical power in the NIR laser nonetheless has the probable to be improved to tens of watts including 70 W [26] Should the double-move configuration could be utilized for that Yb:YAG SCF amplifier phase. As a result, If your conversion performance of 31% from NIR to DUV might be even now preserved at this increased electric power condition, the normal output power from the DUV laser at 258 nm may be more than twenty W, which might be a impressive electric power amount for the DUV laser and bring on the unanticipated DUV laser machining benefits. In addition, for high-electric power DUV laser, the UV destruction on the nonlinear crystal, including the Home windows for CLBO crystal plus the mirrors, is another essential parameter for long-lasting and steady Procedure.
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LBO is usually a superb nonlinear crystal which is often placed on the SHG through the NIR to your environmentally friendly. 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]. Lately, the NSBBF crystal has also shown its opportunity to get a significant conversion performance from 532 nm to 266 nm. The stroll-off angle and deff with the NSBBF are Just about just like All those of CLBO [seventeen].
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The heartbeat period of the second Stokes light-weight was shortened to 5 ns as demonstrated in Figure 7a, a single-shot picture from the oscilloscope, and that is a common phenomenon in Raman laser [forty four] while the heartbeat period of the pump laser was 10 ns.
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The beam profile revealed in Determine 7b demonstrated an excellent beam excellent as one of the merits of Raman laser, which might be helpful to create a 193-nm DUV laser with a high quality beam.
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The event of the 193-nm laser was shown by levels of SFG. So as to scale the DUV laser electric power properly, a new strategy of the get more info 193-nm DUV laser era is introduced according to the diamond Raman laser.