Fascination About KYW Crystal
Fascination About KYW Crystal
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is rather substantial in contrast with that of Yb:YAG. This allows for extensive wavelength tunability and for Substantially shorter pulse durations from manner-locked lasers. Values properly under a hundred fs are reached with passive method locking.
This distinctive characteristic of ultrafast pulses enables nonlinear optical interaction with tissue at reduced All round exposure, and drives applications for instance deep-tissue multiphoton microscopy and substantial-precision eye operation
The Yb:KYW crystal’s proficiency in gentle absorption at all-around 981 nm helps make the crystal well matched for diode pumping. It really is further Improved by its outstanding effectiveness in this method, coupled with its very low quantum defect.
The absorption and emission spectra of Yb:KYW Crystals Exhibit potent peaks at 980 nm and 1030 nm, respectively, guaranteeing efficient Strength conversion and large efficiency in laser programs.
Ultrafast lasers, with pulse widths of a few picoseconds (ten−twelve s) or much less, help the time resolution demanded in laser-energized fluorescence lifetime spectroscopy and imaging strategies.Moreover, they produce large pulse peak powers at substantial repetition charges and reasonable average output powers.
Prior to the development of Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser get medium. It had been actually used in the initial repeatedly operating crystal laser.
Raman, luminescence and transmission spectra expose optical options owing towards the presence of thulium ions, and for that more info reason the products might be additional studied within the scope of laser and luminescence applications.
Tungstates are inclined to get higher Raman coefficients (�?Raman scattering). Therefore, they could deliver major Raman obtain at moderate optical intensities. It can be done to use the laser crystal itself as being a Raman converter.
For tungstates, the ytterbium doping concentration can be quite substantial without having significant quenching since the replaced ions have an extremely equivalent ion radius, along with the inter-ion length is comparatively massive.
High-power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical purposes
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