A Simple Key For KYW Crystal Unveiled
A Simple Key For KYW Crystal Unveiled
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This one of a kind characteristic of ultrafast pulses enables nonlinear optical interaction with tissue at low Over-all exposure, and drives purposes including deep-tissue multiphoton microscopy and higher-precision eye surgery
We current a twin-crystal Yb:KGW laserthat iscapable to work for a Q-switched oscillator with output electrical power nearly 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output power nearly 21 W and pulse duration down below 200 fs right after compression of chirped pulses. Each lasers have excellent beam excellent with beam parameter M2
FIG. four. Autocorrelation purpose of the heartbeat 共a兲and spectrum 共b兲of a laser with an oblong Energetic aspect for an output power of seven-hundred mW. The width of
By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW due to the comparable sizes of these chemical factors approximately one hundred% of Yb-doping may very well be obtained. This one of a kind attribute permits ytterbium to go ahead and take area of yttrium with almost no disruption on the crystal’s lattice.
The monoclinic crystal buildings brings about a natural birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra reveal optical characteristics owing into the existence of thulium ions, and for that reason the products could be additional studied within the scope of laser and luminescence applications.
Spatial construction click here from the beam as well as corresponding depth profiles I for the output with the laser.
For tungstates, the ytterbium doping concentration can be quite large without the need of considerable quenching as the changed ions have an extremely very similar ion radius, and the inter-ion distance is comparatively substantial.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW due to the identical dimensions of those chemical components up to a hundred% of Yb-doping may be attained.
The thermal conductivity of typical double tungstates is of the buy to 3–four W/(K m) �?which is not terrible in comparison with other laser crystals (although many occasions a lot less than for YAG), and fairly significant in contrast Using the thermal conductivity of regular glasses.
Li2WO4-WO3 flux was properly used lowering The expansion temperature below 900 oC. As outlined by solitary crystal x-ray measurements, the crystal corresponds to the P2/n Area group.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at room temperature have been calculated. The emission spectrum and life span from the 3 F four psyched state had been decided. Working with standard and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes have been calculated and very good arrangement With all the experimental final results was obtained for equally theories.
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