The smart Trick of KGW Crystal That Nobody is Discussing
The smart Trick of KGW Crystal That Nobody is Discussing
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We utilised a transmission grating (TG) for a dispersive ingredient inside our stretcher and compressor. A compact configuration was adopted, where by the stretcher and also the compressor shared just one grating comparable to that in Ref.
Therefore There exists very little freedom for optimizing the dispersion compensation result. Sub-200 fs pulses is usually expected that has a broader bandwidth seed input. Due to the dual-crystal configuration, the laser cavity delivers a near diffraction constrained laser beam with M
The datasets applied and/or analysed through the current analyze offered in the corresponding author on acceptable request.
Amplified pulses by having an energy above 2.five mJ could be predicted by making use of an increased pump electricity on the regenerative amplifier and which makes it perform on the saturation amount. The laser fluence of ~1 J/cm2 about the dichroic mirrors is thought to become below the harm threshold of high-excellent dielectric-coated mirrors.
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The black read more line denotes the configuration Along with the crystals positioned in the identical orientation, while the red line is under the configuration of crystals put in orthogonal orientation.
We prepare to boost the heartbeat Electricity to higher than 40 mJ in two-stage multi-move amplifiers, akin to a obtain factor of twenty. In Every amplifier, we will also adopt two cascaded crystals put under orthogonal orientation to reduce the thermal load on Every crystal and compensate for that get-narrowing impact.
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Considering the fact that its discovery in 19701,2, the point out on the artwork of supercontinuum (SC) era in bulk solid-condition materials has attained a superior amount of maturity owing to remarkable development of ultrafast laser sources and fundamental comprehension of the underlying Bodily processes3,four. The complexity of physical outcomes fundamental SC generation is unveiled while in the framework of femtosecond filamentation, which is a universal phenomenon arising from nonlinear propagation of femtosecond laser pulses in clear materials5. In additional useful conditions, the attainable spectral extent of SC radiation depends upon the material Houses, such as linear and nonlinear indexes of refraction and Electricity bandgap, which along with the laser wavelength define the vital ability for self-concentrating (that has for being exceeded for a lightweight filament to variety) and clamping intensity of a light filament (that's proportional to the order of multiphoton absorption), respectively.
Determine 8 Intra-cavity pulse amplification system monitored by an oscilloscope. The heartbeat underwent an unsaturated amplification as a result of mirror harm limitation.
Equally energies are marked by the dashed lines and their values are labeled while in the plots. The equivalent features had been also observed in KGW and YAG crystals, whose spectral broadening dynamics are proven for your comparison in Fig. four.