KGW Crystal Things To Know Before You Buy
KGW Crystal Things To Know Before You Buy
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We used a transmission grating (TG) as a dispersive ingredient inside our stretcher and compressor. A compact configuration was adopted, exactly where the stretcher and the compressor shared one particular grating much like that in Ref.
In combination with its use as being a Raman crystal, KGW can also be used in other optical purposes, including in laser systems and like a scintillator in healthcare imaging.
Replacement with the PC for a greater one particular or even a high-quality adjustment from the Computer system orientation plus the used higher voltage is necessary to prevent this phenomenon. A quick pulse picker can be utilized to improve the nanosecond-scale contrast with the output major pulse.
Amplified pulses using an energy higher than 2.5 mJ could be envisioned by implementing a higher pump electrical power for the regenerative amplifier and rendering it do the job at the saturation degree. The laser fluence of ~1 J/cm2 over the dichroic mirrors is thought to get underneath the hurt threshold of higher-high-quality dielectric-coated mirrors.
One other was placed with its Np -axis parallel Together with the s-polarized direction. A comparison was produced in between a configuration Together with the crystals positioned in precisely the same orientation (
The black line denotes the configuration With all the crystals placed in exactly the same orientation, though the red line is underneath the configuration of crystals placed in orthogonal orientation.
]. This method was according to The point that the spectral emission cross-section curves vary from each other when laser polarization is paralleled to different optical axis of Yb-doped double tungstates[
The pink-shifted Section of the SC spectrum in BGO has the lowest spectral energy density, that is 1–two orders of magnitude reduced than in the rest of the products. Nonetheless, quite low energy threshold of SC technology, and also small optimum pump Electricity in BGO, ought to get more info be pointed out. The approximated spectral energy densities generated in LSO and LYSO are really just like YAG through the entire big A part of the SC spectrum. The most appealing getting in that regard is GGG crystal, which, In spite of quite reasonable blue-shifted spectral broadening, generates the most important spectral crimson-shift and the highest spectral Power density inside the 1600�?000 nm variety, which is almost an purchase of magnitude higher than that produced in YAG.
相关工作得到了上海扬帆计划、国家重点研发计划、中国科学院战略性先导科技专项、国家自然科学基金项目、上海市优秀学术/技术带头人计划、上海市市级科技重大专项、中国科学院青年创新促进会的支持。（强场激光物理国家重点实验室供稿）
KGW has a strong Raman spectrum that extends with the ultraviolet to your close to infrared, making it valuable for An array of apps. The crystal can be employed like a reference material for Raman spectroscopy, in addition to a sample for studying Raman scattering within the good condition.
Figure four Beam radius variation on the two crystals though shifting the focal length of your thermal lensing result.
]. The dual-crystal configuration lowers the thermal load on Each and every crystal whilst maintaining a high acquire, and facilitates the payment of every one’s thermal lensing effect. As a result, the laser cavity can work with a significant balance range around the thermal lensing impact variation.