The 5-Second Trick For KYW Crystal
The 5-Second Trick For KYW Crystal
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time. Crystals with the compound melts congruently at 1007 oC, nonetheless soften crystallization of top quality crystal is unachievable on account of period transition at ~920 oC. The best seeded Answer strategy from
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This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers owning fiber output. To forestall spectral narrowing all through amplification as well as corresponding lengthening with the amplified pulse when it's compressed, a mix of two Yb:KYW crystals ended up employed, Using the spectral maxima of your amplification shifted relative to one another and with spectral profiling from the amplified radiation.
The monoclinic crystal buildings ends in a pure birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical attributes owing for the presence of thulium ions, and therefore the resources may very well be further more examined during the scope of laser and luminescence apps.
Spatial composition of your beam as well as corresponding depth profiles I for the output with the laser.
For tungstates, the ytterbium doping concentration can be extremely large without the need of considerable quenching as the changed ions have an extremely very similar ion radius, and also the inter-ion distance is fairly substantial.
By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW a result of the related sizes of such chemical things as many as 100% of Yb-doping might be realized.
The thermal conductivity of frequent double tungstates is of the buy to three–4 W/(K m) �?which isn't poor when compared with other laser crystals (Though quite a few occasions a lot less than for YAG), and reasonably large in comparison with the thermal conductivity of standard Eyeglasses.
Li2WO4-WO3 flux was effectively utilized lessening the growth temperature under 900 oC. In keeping with one crystal x-ray measurements, the crystal corresponds towards the P2/n Area group.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at area temperature were being measured. The emission spectrum and lifetime in the 3 F 4 enthusiastic condition ended up identified. Using regular and modified Judd–Ofelt theories, the intensity parameters as well as radiative lifetimes were calculated and more info good agreement Using the experimental outcomes was obtained for each theories.
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