Top KYW Crystal Secrets
Top KYW Crystal Secrets
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This special attribute of ultrafast pulses permits nonlinear optical interaction with tissue at small overall exposure, and drives applications like deep-tissue multiphoton microscopy and significant-precision eye surgical procedure
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing in a regenerative amplifier by spectral profiling of the heart beat
The absorption and emission spectra of Yb:KYW Crystals Exhibit powerful peaks at 980 nm and 1030 nm, respectively, guaranteeing effective Electricity conversion and large effectiveness in laser techniques.
Ultrafast lasers, with pulse widths of some picoseconds (ten−12 s) or a lot less, help time resolution required in laser-energized fluorescence life span spectroscopy and imaging approaches.What's more, they produce high pulse peak powers at large repetition premiums and average average output powers.
The monoclinic crystal structures leads to a pure birefringence, assisting to stay away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical features owing into the presence of thulium ions, and for that reason the resources may be even further analyzed from the scope of laser and luminescence purposes.
5 mm other than the center with the beam caustic. In an effort to Examine the mode matching simulation, we done the experiment with Ng-Lower crystal oscillator, which was made previously and in a very same affliction with simulation [eleven]. As demonstrated in Figure three(b) with pink dots and line, the CW output power is very dependent on the placement of laser crystal as well as the experimental final get more info result coincides perfectly with simulation final result. To be a Observe, multimode Procedure occurred in experiment when the measurement of your pump beam is larger sized than TEM00 cavity manner and it triggers better CW output electricity within the displacement area below 3.5 mm.
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW as a result of identical dimensions of those chemical elements up to a hundred% of Yb-doping may be obtained.
Whilst ytterbium-doped laser acquire media typically exhibit a little quantum defect, ytterbium-doped tungstates allow for for especially little values. For instance, a 1030-nm Yb:YAG laser would normally be pumped close to 940 nm, Whilst Yb:KGW or Yb:KYW might be most efficiently pumped around 981 nm.
Li2WO4-WO3 flux was effectively utilized reducing The expansion temperature down below 900 oC. Based on one crystal x-ray measurements, the crystal corresponds into the P2/n Room team.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at room temperature had been measured. The emission spectrum and life time of your 3 F 4 thrilled state ended up decided. Employing regular and modified Judd–Ofelt theories, the depth parameters and also the radiative lifetimes have been calculated and superior agreement Along with the experimental benefits was obtained for each theories.
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