The 2-Minute Rule for KGW Crystal
The 2-Minute Rule for KGW Crystal
Blog Article
To save lots of this article towards your Dropbox account, remember to pick out a number of formats and ensure that you simply agree to abide by our use insurance policies.
PDF Please pick a format to avoid wasting. By using this support, you agree that you're going to only continue to keep material for personal use, and will never brazenly distribute them by using Dropbox, Google Drive or other file sharing providers Be sure to validate that you just acknowledge the conditions of use. Terminate
The gain bandwidth e.g. of Yb:KGW and Yb:KYW may be very significant as opposed with that of Yb:YAG. This permits for wide wavelength tunability and for Significantly shorter pulse durations from manner-locked lasers. Values perfectly underneath 100 fs have been obtained with passive manner locking.
In conclusion, we shown that undoped scintillator crystals: BGO, GGG, YSO, LSO and LYSO are efficient nonlinear elements for broadband SC generation during the close to-infrared and shorter-wave infrared spectral ranges, when pumped by one hundred eighty fs essential harmonic pulses from an amplified Yb:KGW laser. YSO, LSO and LYSO made two octave-spanning SC spectra, which Look at to SC spectra created in YAG. These resources show really very similar performances to YAG also in terms of threshold and optimum pump pulse energies for SC technology. Nonetheless, for what issues the chance to operate at higher laser pulse repetition charge, YSO, LSO and LYSO present durable Procedure only at ten kHz and quickly degrade (inside of a few minutes) at 20 kHz. Moreover the somewhat small SC technology threshold (169 nJ), GGG shown wonderful general performance characteristics in the brief-wave infrared with the optimal pump pulse Electricity of 464 nJ, which can be two moments decreased than in YAG: the most important purple-shifted spectral broadening and the best spectral Strength density, outperforming KGW and YAG crystals in that facet.
In distinction, the seed laser is often amplified to more than one mJ under the orthogonal orientation configuration.
The comparison with glasses is suitable Considering that the substantial obtain bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
PDF You should find a format to save lots of. Through the use of this assistance, you agree that you're going to only preserve content material for personal use, and will likely not brazenly distribute them through Dropbox, Google Generate or other file sharing products and services Be sure to affirm that you acknowledge the phrases of use. Cancel
The black more info line denotes the configuration While using the crystals placed in exactly the same orientation, while the pink line is under the configuration of crystals put in orthogonal orientation.
Check with RP Photonics for any information concerning tungstate lasers, which includes femtosecond lasers and superior-power lasers.
The edge Electrical power for SC era (hbox E _ textrm th ) was defined as being the pump pulse Power, the place the blue-shifted spectral broadening speedily settles to a particular Lower-off wavelength That continues to be almost constant In spite of even more boost on the pump pulse energy. The optimum Vitality (hbox E _textrm opt ), was outlined as being the pump pulse Electricity, which provides the largest crimson-shifted spectral broadening ahead of the onset of periodic modulation while in the SC spectrum on account of filament refocusing.
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 features a quasi-a few-stage behavior. The web gain of your Yb:KGW crystal was not superior: quite a few tens of roundtrips have been required to amplify the nanojoule seed to the millijoule stage. Hence, the get-narrowing result was inescapable in Yb:KGW regenerative amplifiers.
Impact of potassium supplementation on vascular perform: A meta-analysis of randomized controlled trials.
Springer Character remains neutral regarding jurisdictional promises in published maps and institutional affiliations.