The Greatest Guide To CLBO Crystal
The Greatest Guide To CLBO Crystal
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All-stable-point out ultraviolet lasers are actually widely Employed in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of smaller quantity, extended lifetime, superior performance, superior beam high-quality, wide tuning and slender spectral line, etcetera. Utilizing significant electric power near-infrared coherent gentle source as the basic frequency source dependant on nonlinear tuning technological know-how, making ultraviolet coherent radiation by multistage frequency conversion is viewed as an important method to develop the ultraviolet coherent gentle source.
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In accordance with the evidence-of-basic principle experiment, the conversion efficiency of 23% implied the potential for reaching significant-energy at the next Stokes wavelength with the Raman laser. When the pump laser of 1078 nm may very well be obtained at the typical electricity of fifty W, the output electricity of its 2nd Stokes wavelength at 1512 nm may be over 10 W. The look with the Raman laser cavity really should be optimized in order to steer clear of the hurt on the M1 and diamond floor.
The true secret challenge of ultraviolet coherent gentle source mostly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is among the conditions for frequency transformation, so the growth, dimensions, destruction resistance, conversion performance and allowable parameter range of nonlinear optical crystal are required A growing number of.
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Furthermore, combining the good-state laser with other nonlinear system including stimulated Raman scattering, NIR lasers can be accomplished at new wavelengths with significant electrical power and significant beam quality, which was tested from the proof-of-basic principle experiment. This Raman laser plan provides a brand new route to the high-energy DUV laser, Particularly on the wavelength of 193 nm.
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The conversion effectiveness from essential NIR to DUV is from five% to 36% in accordance with the documented ends in Desk 1. Increasing the conversion effectiveness will lessen the burden on the design and set up of the elemental laser amplifier in addition to the electric powered power usage. A superb beam quality of the elemental laser can even contribute to your expanding from the conversion efficiency along with the suitable electrical power intensity from the NIR and green laser within the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to environmentally friendly and inexperienced to DUV laser by use of CLBO crystal are 70% and all over 50%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from fundamental to DUV.
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