Fascination About KGW Crystal
Fascination About KGW Crystal
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Publish your study on American Aspect Internet site Unravelling the dissociation pathways of acetic acid upon electron transfer in potassium collisions: experimental and theoretical studies.
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Down the road, an investigation on the spectral attain curve of Yb:KGW in the principle amplifier will probably be executed below cryogenic temperature evolution from seventy seven K to three hundred K. The working temperature is going to be controlled to comprehend broader gain bandwidth and fewer change at the central wavelength of the principle amplifier.
In summary, we demonstrated that undoped scintillator crystals: BGO, GGG, YSO, LSO and LYSO are productive nonlinear resources for broadband SC era from the in the vicinity of-infrared and shorter-wave infrared spectral ranges, when pumped by a hundred and eighty fs elementary harmonic pulses from an amplified Yb:KGW laser. YSO, LSO and LYSO developed two octave-spanning SC spectra, which Examine to SC spectra generated in YAG. These materials show quite comparable performances to YAG also with regards to threshold and optimal pump pulse energies for SC generation. Nonetheless, for what worries the possibility to function at higher laser pulse repetition level, YSO, LSO and LYSO present tough operation only at ten kHz and immediately degrade (in a few minutes) at 20 kHz. Aside from the rather minimal SC era threshold (169 nJ), GGG shown excellent overall performance properties within the limited-wave infrared While using the best pump pulse Vitality of 464 nJ, which can be two occasions decrease than in YAG: the biggest purple-shifted get more info spectral broadening and the highest spectral Power density, outperforming KGW and YAG crystals in that element.
Its pump laser needs a short pulse duration, a reduced time jitter, and smooth temporal and spatial distributions because of the intrinsic instantaneous procedure. Therefore, the OPCPA program is much more complex and costly.
For tungstates, the ytterbium doping focus can be extremely superior without substantial quenching since the changed ions have an extremely comparable ion radius, plus the inter-ion distance is pretty huge.
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The black line denotes the configuration Using the crystals put in precisely the same orientation, whilst the purple line is under the configuration of crystals put in orthogonal orientation.
]. This technique was dependant on the fact that the spectral emission cross-section curves vary from one another when laser polarization is paralleled to the various optical axis of Yb-doped double tungstates[
The 2-pump laser could supply around a hundred and twenty W electricity. Roughly sixty% of the utmost pump power was utilized inside our experiment contemplating the small functionality from the dichroic mirrors. Underneath this dual-crystal configuration, our cavity supports a 100 W pump ability input, as talked over in Section 2.2. Large-quality dichroic mirrors is going to be applied Later on, and laser pulses is going to be stretched to an extended pulse length.
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）
A multi-move main amplifier will even further Strengthen the Electricity to above forty mJ. We're going to implement cryogenically cooled Yb:KGW technological know-how to restrain the thermal result. Two phases of compression will probably be made use of following amplification. The initial phase includes a typical Treacy-type compressor, and will compress the heartbeat duration to down below three hundred fs using an efficiency of roughly 70%. The second phase requires a gas-crammed multi-move mobile[
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