Not known Details About CLBO Crystal
Not known Details About CLBO Crystal
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The true secret problem of ultraviolet coherent mild supply mainly focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the circumstances for frequency transformation, so the growth, dimension, damage resistance, conversion performance and allowable parameter choice of nonlinear optical crystal are necessary more and more.
Alternatively, the beam quality of the greater ability DUV laser would turn into even worse on account of much more really serious thermal and nonlinear effects. Hence, the frequency conversion processes should be very carefully built to mitigate the aforementioned effects. Hence, a superior-energy DUV laser on the FHG of one μm with a fantastic beam quality could possibly be obtained and can be valuable for getting the shorter wavelength DUV lasers which include 193 nm by SFG.
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The heartbeat length of the next Stokes mild was shortened to five ns as proven in Determine 7a, an individual-shot picture within the oscilloscope, and that is a common phenomenon in Raman laser [forty four] although the heart beat duration with the pump laser was 10 ns.
What's more, combining the sound-state laser with other nonlinear system including stimulated Raman scattering, NIR lasers could possibly be achieved at new wavelengths with substantial power and large beam high-quality, which was tested through the proof-of-theory experiment. This Raman laser plan provides a fresh route to the substantial-electric power DUV laser, especially in the wavelength of 193 nm.
The beam profile proven in Determine 7b demonstrated a good beam top quality as among the list of merits of Raman laser, which would be valuable to produce a 193-nm DUV laser with a high quality beam.
The conversion performance from fundamental NIR to DUV is from five% to 36% based on the reported brings about Desk one. Escalating the conversion performance will decrease the stress on the design and set up of the elemental laser amplifier together with the electric electric power consumption. A fantastic beam high quality of the basic laser will also contribute to your expanding from the conversion effectiveness and also the right electric power depth of your NIR and inexperienced laser while in click here the SHG and FHG procedure, respectively. The very best conversion efficiencies from NIR to environmentally friendly and environmentally friendly to DUV laser by utilization of CLBO crystal are 70% and all around fifty%, respectively [12], which corresponds on the conversion effectiveness of 35% from fundamental to DUV.
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