KGW Crystal Things To Know Before You Buy
KGW Crystal Things To Know Before You Buy
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We applied a transmission grating (TG) as being a dispersive component within our stretcher and compressor. A compact configuration was adopted, where by the stretcher and the compressor shared just one grating just like that in Ref.
The red-shifted Element of the SC is of useful value, specifically for what considerations the effectiveness of broadly tunable optical parametric amplifiers pumped by the elemental harmonics of Yb lasers. The lack of seed photons while in the extensive-wavelength area in the SC spectrum limitations the amplification performance and ends in pulse-to-pulse Vitality fluctuations across the degeneracy area in the optical parametric amplifier. This aspect is quantified in Fig. 6a by plotting the SC spectra regarding spectral Vitality density, which was believed by measuring the Strength from the axial part of SC radiation (which is the only almost valuable Element of SC emission). KGW crystal produces the best spectral Electrical power density while in the 1200�?450 nm range, as famous in the recent study30.
The monoclinic crystal structures ends in a all-natural birefringence, helping to stay clear of thermally induced polarization rotation and depolarization reduction.
Amplified pulses using an Electricity earlier mentioned two.five mJ is usually predicted by applying the next pump electricity to the regenerative amplifier and rendering it perform at the saturation level. The laser fluence of ~1 J/cm2 on the dichroic mirrors is considered to generally be underneath the destruction threshold of substantial-high quality dielectric-coated mirrors.
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KGW (potassium gadolinium tungstate) is actually a crystal that is often employed for a Raman crystal in Raman spectroscopy. It is just a colorless, clear crystal that features a large Raman scattering performance and a robust Raman spectrum, which makes it appropriate for An array of Raman applications.
]. This method was according to the fact that the spectral emission cross-part curves vary from one another when laser polarization is paralleled to the click here different optical axis of Yb-doped double tungstates[
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A multi-move principal amplifier will more Enhance the Power to over forty mJ. We're going to implement cryogenically cooled Yb:KGW technological innovation to restrain the thermal result. Two stages of compression will be made use of just after amplification. The very first stage will involve a typical Treacy-kind compressor, and will compress the heartbeat duration to beneath 300 fs having an effectiveness of around 70%. The second phase requires a gas-loaded multi-move cell[
Figure four Beam radius variation on the two crystals though shifting the focal length with the thermal lensing impact.
The origin in the factor's name arises from the English word 'potash,' which means pot ashes, as well as the Arabic word qali