The best Side of KGW Crystal
The best Side of KGW Crystal
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Investigating tumor perfusion by hyperpolarized (thirteen) C MRI with comparison to standard gadolinium contrast-enhanced MRI and pathology in orthotopic human GBM xenografts.
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For many apps, tungstates present a mix of several handy Homes. Especially for passive mode locking, ytterbium-doped double tungstates will often be outstanding to other media in terms of the combination of substantial achieve bandwidth, substantial cross-sections, and relatively superior thermal Attributes �?Although in Every distinct discipline superior products could possibly be located.
Besides its use like a Raman crystal, KGW can be Employed in other optical applications, for example in laser devices and being a scintillator in clinical imaging.
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For tungstates, the ytterbium doping focus can be very high with out considerable quenching since the changed ions have an exceedingly identical ion radius, and the inter-ion distance is relatively large.
The other was positioned with its Np -axis parallel Together with the s-polarized way. A comparison was created amongst a configuration While using the crystals placed in the exact same orientation (
In its elemental form, gadolinium has a silvery-white visual appearance. Gadolinium is really a exceptional earth or lanthanide element that possesses exceptional properties beneficial to specialized apps which include semiconductor fabrication and nuclear reactor shielding. It can be used for equally its superior magnetic instant (7.ninety fourμ B) and in phosphors and scintillator crystals. When complexed with EDTA ligands, it can be utilized as an injectable contrast agent for MRIs. The aspect is named after the Finnish chemist and geologist Johan Gadolin.
The spectral measurements of filament-induced luminescence recommend that scintillating Attributes of products may very well be conveniently analyzed employing femtosecond close to-infrared light resource by means of multiphoton excitation while in the filamentation regime, which allows easy separation of excitation and emission wavelengths and reduced threat of optical destruction.
Determine 4 Beam radius variation on The 2 crystals although altering read more the focal duration of the thermal lensing effect.
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）
The Yb:KGW laser system incorporates a quasi-a few-level conduct. The web attain from the Yb:KGW crystal was not high: numerous tens of roundtrips ended up required to amplify the nanojoule seed to a millijoule degree. As a result, the attain-narrowing effect was inevitable in Yb:KGW regenerative amplifiers.
The scattered photons have a different wavelength and energy than the incident photons, which makes a Raman spectrum.
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