The 2-Minute Rule for a-BBO Crystal
The 2-Minute Rule for a-BBO Crystal
Blog Article
High-precision laser microfabrication is a method the place materials are processed and modified on a microscopic scale. This method demands a laser source that can deliver really targeted and precise beams of light. The 266nm wavelength is particularly well suited for this because of its limited wavelength, which ensures that the laser beam might be centered to an extremely smaller location size.
The 2 frequencies' period velocities are equal every time they hold the exact refractive index. The refractive indices for both of these frequencies are typically not equivalent, simply because all media besides vacuum are dispersive. Consequently a material's refractive index is determined by the light's frequency.
Determine 22: The diagram at the best displays two pulses with diverse center frequencies incident on a material. The team velocity hold off between the pulses after they enter the material is zero.
A: A large problems threshold makes sure the crystal can cope with additional power with out degrading, bringing about longer lifespan and constant overall performance.
Any contamination can degrade the optical general performance with the crystal and perhaps induce hurt under substantial laser energy. When storing BBO crystals, they ought to be placed in the protective circumstance to circumvent Actual physical harm and dust accumulation.
Nonetheless, it’s essential to Take note that while BBO crystals can transmit UV gentle, they should be dealt with with care when Utilized in UV apps to circumvent possible damage to the crystal and assure protection.
Although the above mentioned technique gives an excellent guideline for LIDT values, remember to Get in touch with Tech Guidance In case your wavelength is different from the required LIDT wavelength. When your energy density is less than the modified LIDT with the optic, then the optic really should operate on your software.
This type of functionality is invaluable in circumstances where by a specific light frequency is necessary, though the resource doesn’t naturally deliver it. By employing BBO’s Houses, scientists and engineers can correctly “tune�?their light-weight resources to desired frequencies.
For the reason that refractive index does not vary linearly with frequency in dispersive crystals like β-BBO, it is actually impossible to optimally period match each and every frequency inside the input pulse's spectral vary with the corresponding next harmonic frequency within the produced pulse.
A5: Of course, BBO crystals have excellent thermal stability and may retain their Homes at place temperature. Consequently they may be Employed in a variety of environments devoid of demanding Unique temperature Handle.
A: The broad transparency variety presents versatility, permitting BBO crystals to be used throughout a various array of wavelengths and programs.
This is actually the so-called oo-e arrangement, as The 2 photons from the fundamental are polarization-oriented alongside the normal axis and the next harmonic photon's polarization is within the incredible airplane.
The duration of the crystal is get more info a vital parameter to think about when optimizing the SHG process with the parameters of particular input pulses. Absent stage-matching and temporal walk-off outcomes, the SHG output raises exponentially with crystal size. The purpose when finding an SHG crystal will be to harmony the crystal duration with the limitations determined by the fundamental pulse. Lowering the crystal thickness minimizes results linked to both of those phase-matching bandwidth constraints and temporal wander-off, that are instantly associated.
芯飞睿所有的服务和支持都立足于使我们的客人工作的更加高效，更有价值。