The 5-Second Trick For KYW Crystal
The 5-Second Trick For KYW Crystal
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This unique attribute of ultrafast pulses allows nonlinear optical interaction with tissue at reduced In general publicity, and drives applications such as deep-tissue multiphoton microscopy and substantial-precision eye surgical procedures
time. Crystals from the compound melts congruently at 1007 oC, on the other hand soften crystallization of high quality crystal is extremely hard as a result of period changeover at ~920 oC. The top seeded Alternative approach from
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW as a result of equivalent dimensions of these chemical features approximately a hundred% of Yb-doping may be achieved. This distinctive characteristic permits ytterbium to go ahead and take put of yttrium with virtually no disruption to the crystal’s lattice.
The monoclinic crystal constructions results in a pure birefringence, helping to keep away from thermally induced polarization rotation and website depolarization decline.
FIG. 1. Optical format of a laser with immediate pumping With all the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
A substantial brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
For tungstates, the ytterbium doping focus can be quite superior without the need of significant quenching because the replaced ions have an incredibly comparable ion radius, and also the inter-ion distance is pretty substantial.
By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW as a result of related dimensions of these chemical components approximately a hundred% of Yb-doping may be achieved.
The thermal conductivity of frequent double tungstates is of your order to three–four W/(K m) �?which isn't bad as opposed with other laser crystals (Even though numerous occasions under for YAG), and relatively huge in comparison With all the thermal conductivity of normal glasses.
This tandem of characteristics has considerably-achieving implications, notably in the construction of compact nonetheless powerfull lasers.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, can be a impressive content that performs a very important function in laser engineering. Its Key function is usually to deliver ultrashort pulses of light, spanning just a few hundred femtoseconds.
Simultaneously, a shorter laser wavelength could be attained; it is possible to work having a quantum defect effectively down below 1%. For a consequence, the warmth era can be so modest that this partly compensates the lessen thermal conductivity.