The smart Trick of CLBO Crystal That No One is Discussing

The smart Trick of CLBO Crystal That No One is Discussing

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All-reliable-point out ultraviolet lasers have been broadly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medication for the benefits of modest quantity, extensive everyday living, superior performance, very good beam top quality, broad tuning and slender spectral line, etcetera. Making use of higher electric power in close proximity to-infrared coherent gentle supply as the fundamental frequency resource based upon nonlinear tuning technology, producing ultraviolet coherent radiation by multistage frequency conversion is thought to be a very important approach to establish the ultraviolet coherent mild supply.

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The main element issue of ultraviolet coherent mild resource primarily focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is without doubt one of the problems for frequency transformation, so The expansion, size, harm resistance, conversion efficiency and allowable parameter array of nonlinear optical crystal are expected Progressively more.

Then again, the beam quality of this better energy DUV laser would turn into worse as a consequence of far more serious thermal and nonlinear results. As a result, the frequency conversion processes must be diligently made to mitigate the aforementioned outcomes. Thus, a significant-ability DUV laser on the FHG of one μm with a great beam good quality could possibly be attained and will be valuable for obtaining the shorter wavelength DUV lasers like 193 nm by SFG.

LBO can also be a superb nonlinear crystal which is usually applied to the SHG in the NIR towards the eco-friendly. The DUV laser is generally realized by two stages of SFG inside the LBO crystals due to the fact there is no phase-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm towards the DUV right by SHG [16]. Not long ago, the NSBBF crystal has also revealed its potential to obtain a high conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff with the NSBBF are Pretty much just like Individuals of CLBO [17].

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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics with the Nd:YAG basic laser wavelength. To be able to boost the destruction threshold, minimal CLBO floor roughness, by ultra-precision machining, is required. Because the CLBO crystal has effortless hydroscopic reaction and micro scratches in machining, ultra-specific machining from the CLBO crystal is a complicated technical issue.

The beam profile revealed in Determine 7b demonstrated a fantastic beam high-quality as one of many merits of Raman laser, which would be beneficial to create a 193-nm DUV laser with a top quality beam.

Its UV absorption edge reaches 180 nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals can be developed from the stoichiometric melt with lower viscosity.

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