New Step by Step Map For KGW Crystal
New Step by Step Map For KGW Crystal
Blog Article
Each and every organization working day American Components' researchers & engineers article their choice for the most exciting components science information of your day
We use cookies to differentiate you from other consumers also to offer you a much better knowledge on our websites. Close this information to accept cookies or Learn the way to handle your cookie options.
The acquire bandwidth e.g. of Yb:KGW and Yb:KYW may be very big in comparison with that of Yb:YAG. This allows for extensive wavelength tunability and for A great deal shorter pulse durations from manner-locked lasers. Values very well beneath a hundred fs are reached with passive method locking.
Concurrently, a shorter laser wavelength is often attained; it is feasible to function that has a quantum defect very well under one%. For a consequence, the heat generation can be so tiny this partly compensates the reduced thermal conductivity.
If This really is The 1st time you utilized this aspect, you'll be questioned to authorise Cambridge Main to attach together with your Dropbox account. Learn more details on preserving content material to Dropbox.
The measured Slice-off wavelengths for the quick-wavelength side are according to the general trend of blue-shifted spectral broadening within the bandgap of nonlinear material. All the nonlinear products developed sensible purple-shifted spectral broadenings beneath circumstances of optimal pump pulse energies, with the most important purple-shift exceeding 2000 nm calculated in GGG crystal. Our outcomes exposed that GGG and BGO (which also had the bottom supercontinuum generation threshold) offer durable, optical injury-totally free efficiency in a laser repetition fee of two hundred kHz, suggesting that these resources are good possibilities to YAG and KGW for lower threshold, higher typical electric power supercontinuum era inside the around- and quick-wave infrared spectral ranges. We also shown that scintillating Homes of bulk products can be commonly examined within the filamentation regime, by using multiphoton excitation applying in the vicinity of-infrared femtosecond laser pulses.
The opposite was put with its Np -axis parallel While using the s-polarized path. A comparison was designed among a configuration Using the crystals put in exactly the same orientation (
The black line denotes the configuration Along with the crystals put in exactly the same orientation, although the red line is underneath the configuration of crystals placed in orthogonal orientation.
We approach to spice up the heartbeat Electrical power to higher than 40 mJ in two-stage multi-pass amplifiers, corresponding to a acquire variable of 20. In Each individual amplifier, we may also adopt two cascaded crystals put less than orthogonal orientation to lessen the thermal load on Every crystal and compensate to the achieve-narrowing outcome.
Figure four Beam radius variation on the two crystals whilst altering the focal size on the thermal lensing influence.
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）
Tungstates are inclined to obtain large Raman coefficients (�?Raman scattering). Thus, they might deliver sizeable Raman acquire at average optical intensities. It is feasible to use the laser crystal itself to be a Raman converter.
This post is cited by the subsequent publications. This checklist is created according to facts provided by Crossref.
KGW crystals are employed as Raman scattering products simply because they have potent Raman scattering in a amount of different wavelengths. Every time a laser beam is directed onto the crystal, the photons while in the laser beam connect with the crystal lattice, resulting in KGW Crystal a few of the photons to scatter in a distinct route.