The smart Trick of BBO Crystal That Nobody is Discussing
The smart Trick of BBO Crystal That Nobody is Discussing
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Equally wide-bandwidth pulses and temporal wander-off cause a discount during the conversion performance, in addition to worsen the optical top quality of the 2nd harmonic pulses. The right crystal thickness really should be picked to reduce both of those results.
Optical parametric chirped-pulse amplification (OPCPA): We use OPCPA to determine our products�?nonlinear conversion performance in addition to phase-matching angle to get a offered input wavelength and sign/idler wavelengths.
This type of capability is invaluable in cases where a specific light frequency is required, even so the resource doesn’t In a natural way present it. By making use of BBO’s properties, researchers and engineers can proficiently “tune�?their light resources to ideal frequencies.
Crystal life span can be strongly dependent on the fabric high quality, Even though specific degradation phenomena seem like intrinsic limits of the material.
Second harmonic generation (SHG): We utilize SHG to measure our items�?nonlinear conversion efficiency and section-matching angle to get a given input wavelength. We warranty that our merchandise fulfil the necessities for SHG purposes.
In the situation of Sort-I period matching and β-BBO crystals, the elemental light-weight propagates as an extraordinary wave during the crystal, when the 2nd harmonic gentle propagates as a normal wave.
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The size of your crystal is an important parameter to take into account when optimizing the SHG procedure for your parameters of particular enter pulses. Absent phase-matching and temporal walk-off effects, the SHG output raises exponentially with crystal length. The target when selecting an SHG crystal is click here always to stability the crystal size with the constraints determined by the basic pulse. Decreasing the crystal thickness lowers results linked to the two section-matching bandwidth constraints and temporal wander-off, that are straight related.
The lifespan of BBO crystals could vary greatly dependant upon several elements. These include things like how the crystals are made use of, how they are taken care of, and the conditions wherein they are saved.
Since the dynamics of this process are really subject to experimental parameters, it truly is tricky to arbitrarily predict the specific effects on the second harmonic pulse. These outcomes can include things like back again conversion, where 2nd harmonic gentle is transformed again to elementary light-weight, and spectral narrowing of the SHG pulse.
Additionally, the structural and compositional attributes of BBO give it with amazing thermal stability and resistance towards environmental difficulties.
The pole is little by little introduced up while revolving in a dependable velocity. This triggers a skinny thaw layer to reinforce the seed crystal, making a spherical boule.
The temporal walk-off is often thought of intense if the temporal lag exceeds the period of the fundamental pulse. Intense stroll-off can result in temporal lag that irreparably boosts the period in the output 2nd harmonic pulse.
Whether you’re a researcher, a laser procedure designer, or an enthusiast, we hope this text has answered your questions on BBO crystals.