Not known Facts About KGW Crystal
Not known Facts About KGW Crystal
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The thermal conductivity of typical double tungstates is with the order to three–4 W/(K m) �?which isn't poor in comparison with other laser crystals (Even though various instances fewer than for YAG), and fairly huge in comparison While using the thermal conductivity of common glasses.
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Besides its use like a Raman crystal, KGW can also be Employed in other optical apps, which include in laser methods and to be a scintillator in health care imaging.
In distinction, the seed laser is often amplified to in excess of 1 mJ beneath the orthogonal orientation configuration.
The comparison with glasses is suitable Considering that the massive achieve bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
Even so, the moment Nd3+:YAG grew to become commercially offered, the desire in CaWO4 dropped sharply. In later on a long time, specified other tungstate crystals started to draw in a great deal of consideration.
Scenario Research of picked crucial systems invented or co-invented by American Factors in only the 1st two decades of this century
]. This method was dependant on The point that the spectral emission cross-segment curves vary from each other when laser polarization is paralleled to different optical axis of Yb-doped double tungstates[
The edge Power for SC technology (hbox E _ textrm th ) was defined as being the pump pulse energy, the place the blue-shifted spectral broadening immediately settles to a certain Lower-off wavelength That continues to be Pretty much continuous Despite further boost on the pump pulse Electrical power. The optimum Power (hbox E _textrm decide ), was defined KGW Crystal because the pump pulse Strength, which makes the most important pink-shifted spectral broadening ahead of the onset of periodic modulation in the SC spectrum as a result of filament refocusing.
The Martinez stretcher stretched the seed pulses to ~250 ps with 1600 grooves/mm grating. The enter of your stretcher (incident angle: fifty two°) Which on the compressor incident with the grating have been from your identical side; hence, a slight angular tuning of your grating can be made to get the most effective compression outcome. Inside the compressor, the input angle on the grating and the gap involving the interpretation phase (S1) and the transmission grating (TG) were made to compensate for your stretcher dispersion and all dispersion released from the elements.
Tungstates are inclined to own high Raman coefficients (�?Raman scattering). As a result, they might generate important Raman get at moderate optical intensities. It is feasible to utilize the laser crystal itself like a Raman converter.
The scattered photons have a distinct wavelength and Power than the incident photons, which results in a Raman spectrum.
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