5 Simple Statements About KGW Crystal Explained
5 Simple Statements About KGW Crystal Explained
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We applied a transmission grating (TG) like a dispersive element inside our stretcher and compressor. A compact configuration was adopted, the place the stretcher along with the compressor shared 1 grating comparable to that in Ref.
The main two peaks might be associated with luminescence of pure material59, even though the remaining peaks could be attributed to the luminescence of unknown dopants, although the provider specified the sample as undoped. The luminescence of YAG crystal makes potent UV luminescence having a maximum intensity at 300 nm, that is attributed to put together self-trapped exciton and antisite defect-linked emissions60. Eventually, no luminescence from the UV, noticeable and around-IR was noticed in KGW and LT crystals, at the least throughout the detection range of fiber spectrometer (two hundred�?00 nm).
In contrast, the seed laser might be amplified to in excess of one mJ under the orthogonal orientation configuration.
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Another was put with its Np -axis parallel Together with the s-polarized direction. A comparison was manufactured concerning a configuration Together with the crystals put in exactly the same orientation (
KGW (potassium gadolinium tungstate) is usually a crystal that is often utilised as being a Raman crystal in Raman spectroscopy. This is a colorless, transparent crystal that has a higher Raman scattering performance and a solid Raman spectrum, which makes it suitable for An array of Raman programs.
]. This process was based on The point that the spectral emission cross-area curves vary from each other when laser polarization is paralleled to different optical axis of Yb-doped double tungstates[
The 2-pump laser could present approximately 120 W electric power. Around sixty% of the maximum pump electricity was used in our experiment looking at the very low efficiency with the dichroic mirrors. Under this dual-crystal configuration, our cavity supports a one hundred W pump power enter, as discussed in Segment 2.2. Higher-good quality dichroic mirrors are going to be used in the future, and laser pulses will likely be stretched to an extended pulse length.
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]. The dual-crystal configuration lowers the thermal load on each crystal although keeping a higher attain, and facilitates the compensation of every one’s thermal lensing impact. Hence, the laser cavity can operate with a substantial stability selection around the thermal lensing result variation.