The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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In this paper, the new lapping slurry and sprucing slurry are introduced. Along with the deliquescence diploma of CLBO is fallen to lowest. A whole new Functioning technologies is also adopted. Immediately after tough polishing, the concentration of extremely-precision sprucing slurry is elevated correctly. So does the ultra-precision polishing pace, as well as wiping velocity is quicker in comparison to the deliquescence velocity. The CLBO crystal area roughness can realize 1nm and retain the floor high quality nicely. Access by means of your institution
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We summarized The present advancement position on the large-energy DUV laser both of those with the wavelength of FHG on the one-μm laser and at 193 nm. The current enhancement with the sound-point out/fiber laser, and also the nonlinear optical crystals, prompts not merely the typical ability and also the beam high-quality (coherence) in the DUV lasers to an unparalleled stage.
The main element challenge of ultraviolet coherent light-weight resource predominantly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the circumstances for frequency transformation, so The expansion, dimensions, problems resistance, conversion efficiency and allowable parameter number of nonlinear optical crystal are demanded Increasingly more.
However, the beam quality of the better electric power DUV laser would turn out to be worse on account of more significant thermal and nonlinear consequences. Therefore, the frequency conversion processes really should be carefully intended to mitigate the aforementioned consequences. Thus, a large-electric power DUV laser for the FHG of 1 μm with a superb beam excellent could be obtained and will be helpful for acquiring the shorter wavelength DUV lasers like 193 nm by SFG.
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On the opposite aspect, the power scaling of the NIR laser is yet another facet to enhance the average ability with the 193-nm DUV laser. A result of the insufficient the superior-electric power amplification Remedy of your NIR laser (such as at 1553 nm), nonlinear frequency processes including optical parameter oscillation (OPO) could be placed on create a wavelength converter by shifting the wavelength from one μm to the desired wavelength and acquiring relative bigger electricity [21]. Recently, a diamond Raman CLBO Crystal laser showed its means in attaining a high ability as well as a substantial conversion effectiveness for the 1st Stokes of your one-μm laser [22,23], which means the possibility to become applied inside the 193-nm DUV laser generation as a result of its substantial Raman achieve and huge frequency shift.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics in the Nd:YAG basic laser wavelength. So that you can enhance the hurt threshold, low CLBO surface roughness, by extremely-precision machining, is required. Because the CLBO crystal has quick hydroscopic response and micro scratches in machining, ultra-specific machining on the CLBO crystal is actually a tough technological dilemma.
The beam profile shown in Figure 7b demonstrated a fantastic beam high quality as one of many deserves of Raman laser, which would be advantageous to make a 193-nm DUV laser with a high quality beam.
Its UV absorption edge reaches one hundred eighty nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals is often grown in the stoichiometric soften with reduced viscosity.
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