The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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Within this paper, The brand new lapping slurry and sprucing slurry are introduced. As well as the deliquescence degree of CLBO is fallen to cheapest. A new Functioning know-how is also adopted. Immediately after tough sharpening, the focus of extremely-precision polishing slurry is improved adequately. So does the extremely-precision sprucing velocity, and the wiping speed is faster compared to the deliquescence speed. The CLBO crystal area roughness can realize 1nm and retain the floor top quality effectively. Access by means of your establishment
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We summarized The existing enhancement position from the higher-power DUV laser both equally in the wavelength of FHG on the one-μm laser and at 193 nm. The new growth from the stable-state/fiber laser, and also the nonlinear optical crystals, prompts not just the common ability but in addition the beam quality (coherence) from the DUV lasers to an unparalleled stage.
The normal electric power in the NIR laser nevertheless has the possible to generally be enhanced to tens of watts including 70 W [26] if the double-go configuration might be used for that Yb:YAG SCF amplifier stage. Hence, Should the conversion efficiency of 31% from NIR to DUV can be even now maintained at this increased ability problem, the normal output energy on the DUV laser at 258 nm could be over twenty W, which might certainly be a remarkable energy stage with the DUV laser and produce the unanticipated DUV laser machining effects. What's more, for prime-power DUV laser, the UV harm on the nonlinear crystal, such as the Home windows for CLBO crystal along with the mirrors, is an additional critical parameter for long run and stable Procedure.
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Due to the thermal lens influence inside the strong-point out lasers, In case the heating management is insufficient, It isn't quick to obtain the good-state laser having a superior electric power plus click here a high beam excellent simultaneously. A short while ago, with the development of The skinny disk laser and one-crystal fiber (SCF) laser, a higher-electric power laser at the fundamental wavelength (1 μm) had been recognized with a very good beam top quality In spite of a TEM00 manner beam [4,24], which would be very good candidates for the elemental with the DUV laser technology. A further prospect for the elemental is definitely the superior-ability fiber laser which could be reached by coherent beam blend with M2 worth below 1.
On another side, the facility scaling of your NIR laser is yet another part to improve the regular electrical power from the 193-nm DUV laser. Due to the not enough the superior-electric power amplification Remedy of the NIR laser (one example is at 1553 nm), nonlinear frequency processes for instance optical parameter oscillation (OPO) might be applied to establish a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength together with obtaining relative larger electric power [21]. Just lately, a diamond Raman laser showed its means in accomplishing a large electricity along with a substantial conversion effectiveness at the 1st Stokes from the 1-μm laser [22,23], which suggests the likelihood to generally be used in the 193-nm DUV laser generation as a result of its higher Raman achieve and huge frequency shift.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of the Nd:YAG fundamental laser wavelength. In an effort to improve the harm threshold, lower CLBO floor roughness, by extremely-precision machining, is necessary. As the CLBO crystal has effortless hydroscopic response and micro scratches in machining, extremely-exact machining from the CLBO crystal is actually a complicated complex trouble.
Tunable ultraviolet laser resource based on strong-state dye laser technologies and CsLiB6O10 harmonic generation
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