5 Simple Statements About KGW Crystal Explained
5 Simple Statements About KGW Crystal Explained
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Whilst ytterbium-doped laser gain media generally exhibit a small quantum defect, ytterbium-doped tungstates permit for specially modest values. For instance, a 1030-nm Yb:YAG laser would Usually be pumped around 940 nm, Whilst Yb:KGW or Yb:KYW could be most competently pumped around 981 nm.
We utilised a transmission grating (TG) like a dispersive component within our stretcher and compressor. A compact configuration was adopted, in which the stretcher and also the compressor shared one grating much like that in Ref.
For that reason there is minor flexibility for optimizing the dispersion payment effect. Sub-two hundred fs pulses can be envisioned with a broader bandwidth seed enter. Thanks to the dual-crystal configuration, the laser cavity provides a close to diffraction minimal laser beam with M
-switched mode. The bandwidth within the orthogonal orientation was clearly A lot broader. The calculated Fourier remodel limited pulse period was as limited as sub-one hundred sixty fs. Under the configuration where The 2 crystals have been placed in exactly the same orientation, While using the seed input, the amplified pulse bandwidth was only 3 nm with 180 μJ Strength when it broke the dichroic mirrors.
For tungstates, the ytterbium doping focus can be very significant without major quenching because the changed ions have an exceptionally comparable ion radius, and the inter-ion length is fairly significant.
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KGW (potassium gadolinium tungstate) is often a crystal that is commonly applied to be a Raman crystal in Raman spectroscopy. It is just a colorless, transparent crystal that features a high Raman scattering efficiency and a powerful Raman spectrum, making it suitable for A variety of Raman programs.
The spectral measurements of filament-induced luminescence recommend that scintillating Attributes of components might be easily researched using femtosecond around-infrared gentle source by way of multiphoton excitation from the filamentation routine, which permits quick separation of excitation and emission wavelengths and reduced threat of optical destruction.
First of all, For the reason that filament-induced luminescence originates from simultaneous absorption of many photons, whose complete Power exceeds the bandgap Electricity of material, it provides quick separation of excitation and emission wavelengths and delivers quite sturdy sign In spite of getting emitted around your entire sound angle. The situation of your filament observe Within the crystal can be simply altered in the wanted way by various the pump pulse Power, Whilst the intensity clamping in a light-weight filament significantly reduces the potential risk of optical destruction. These options could be beneficial for getting more details about crystal homogeneity and reveal the existence and distribution of various dopants in the sample.
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）
-switched laser output beneath the two crystal placement check here configurations. The black line denotes the configuration Together with the crystals positioned in the exact same orientation, though the pink line is underneath the configuration of crystals put in orthogonal orientation.
The scattered photons have a distinct wavelength and Power than the incident photons, which results in a Raman spectrum.
Assembling tungsten oxide hydrate nanocrystal colloids fashioned by laser ablation in liquid into quick-response electrochromic movies.