The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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We summarized The existing development status of the large-electrical power DUV laser each within the wavelength of FHG on the 1-μm laser and at 193 nm. The current enhancement in the reliable-state/fiber laser, together with the nonlinear optical crystals, prompts not just the standard electrical power but will also the beam high quality (coherence) of the DUV lasers to an unparalleled degree.
The crucial element problem of ultraviolet coherent gentle resource primarily concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is among the situations for frequency transformation, so the growth, dimension, harm resistance, conversion efficiency and allowable parameter number of nonlinear optical crystal are required A growing number of.
On the flip side, the beam good quality of this better electricity DUV laser would turn out to be even worse as a result of extra serious thermal and nonlinear results. For this reason, the frequency conversion processes really should be carefully created to mitigate the aforementioned outcomes. So, a high-energy DUV laser on the FHG of 1 μm with an excellent beam good quality can be attained and may be advantageous for obtaining the shorter wavelength DUV lasers for example 193 nm by SFG.
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The pulse period of the second Stokes light-weight was shortened to 5 ns as revealed in Figure 7a, a single-shot photo with the oscilloscope, that's a standard phenomenon in Raman laser [44] while the heartbeat duration with the pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics from the Nd:YAG fundamental laser wavelength. In order to boost the damage threshold, minimal CLBO surface roughness, by extremely-precision machining, is required. As the CLBO crystal has quick hydroscopic reaction and micro scratches in machining, extremely-specific machining with the CLBO crystal is often a hard complex difficulty.
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Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as big as that of KDP. CLBO crystals can be grown from the stoichiometric soften with reduce viscosity.
The event with the 193-nm laser was demonstrated by phases of SFG. In order to scale the DUV laser electric power efficiently, a completely new strategy in the 193-nm DUV laser technology is introduced depending on the diamond Raman laser.