Rumored Buzz on CLBO Crystal
Rumored Buzz on CLBO Crystal
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All-solid-condition ultraviolet lasers have been broadly used in the fields of mechanical flaw detection, lithography, micromachining and drugs for the advantages of modest volume, extended lifestyle, higher effectiveness, fantastic beam high-quality, vast tuning and slender spectral line, etcetera. Using superior electric power in close proximity to-infrared coherent light-weight supply as the basic frequency source according to nonlinear tuning technology, creating ultraviolet coherent radiation by multistage frequency conversion is viewed as an important way to create the ultraviolet coherent light-weight source.
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In accordance with the evidence-of-principle experiment, the conversion effectiveness of 23% implied the opportunity of obtaining significant-energy at the next Stokes wavelength of your Raman laser. When the pump laser of 1078 nm could possibly be acquired at the common electrical power of fifty W, the output power of its 2nd Stokes wavelength at 1512 nm may be much more than 10 W. The look on the Raman laser cavity needs to be optimized in an effort to avoid the problems with the M1 and diamond area.
The crucial element difficulty of ultraviolet coherent gentle resource mainly focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the situations for frequency transformation, so the growth, measurement, injury resistance, conversion performance and allowable parameter selection of nonlinear optical crystal are needed A growing number of.
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On one other facet, the facility scaling with the NIR laser is an additional element to boost the average ability with the 193-nm check here DUV laser. A result of the insufficient the superior-electric power amplification Alternative from the NIR laser (for example at 1553 nm), nonlinear frequency processes such as optical parameter oscillation (OPO) may very well be applied to establish a wavelength converter by shifting the wavelength from one μm to the specified wavelength and also obtaining relative increased energy [21]. A short while ago, a diamond Raman laser showed its capacity in obtaining a higher electric power and a substantial conversion effectiveness for the 1st Stokes of your 1-μm laser [22,23], which implies the possibility for being utilized while in the 193-nm DUV laser era on account of its substantial Raman get and huge frequency shift.
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The beam profile demonstrated in Determine 7b shown a good beam good quality as on the list of deserves of Raman laser, which might be beneficial to create a 193-nm DUV laser with a high quality beam.
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The event on the 193-nm laser was shown by phases of SFG. In order to scale the DUV laser electricity successfully, a different idea with the 193-nm DUV laser generation is offered based on the diamond Raman laser.