The crystal axis is c. The Main ray is parallel on the direction used to evaluate the tuning angle (θ), that's optimized in the course of period matching. Conversion performance is optimized for rays parallel towards the chief ray and even worse for rays at bigger angles (ψ) for the Main ray.
The 266nm wavelength delivers particular interactions that other wavelengths can’t, which makes it indispensable for detecting and researching particular compounds.
Good day, thank you for making contact with Thorlabs. The wavelength ranges on the antireflective coatings on these β-BBO crystals align With all the respective wavelength bands that these crystals are optimized for. Requests for customizations can be made by reaching out to us at [email protected]
This efficiency is important, specially when a single considers the era of the 266nm wavelength, exactly where even insignificant inefficiencies can result in significant Electrical power losses.
And lastly, the extensive-angle tunability of BBOs facilitates customization like in no way right before. Based on the certain requirements of an software, the crystal might be modified with precision, ensuring the output is always optimized.
The effectiveness from the SHG process decreases substantially as the basic beam diverges from its focus, Considering that the pulse Power is distributed across a bigger beam cross portion.
Their high hurt threshold and great thermal security make them appropriate for use in superior-ability laser programs, whilst their large transparency assortment makes it possible for them to operate using a broad variety of laser wavelengths.
These Qualities make BBO crystals very attractive in a variety of apps, from laser frequency conversion to electro-optic modulation. Their vast transparency range lets them to operate with a broad choice of laser wavelengths, whilst their significant hurt threshold ensures they could tackle high-power laser beams with no degradation.
When pulse lengths are involving 1 ns and one µs, laser-induced harm can occur possibly as a consequence of absorption or possibly a dielectric breakdown (thus, a person must Test equally CW and pulsed LIDT). Absorption is both because of an intrinsic property in the optic or as a result of floor irregularities; So LIDT values are only legitimate for optics meeting or exceeding the surface excellent specs supplied by a maker.
The SHG mild is polarized inside the XZ airplane which is orthogonal to the two the Eo and the k-vector. As opposed to decompose the polarization in the SHG gentle into Ex and Ez parts, the electrical area is often described as a rare wave (E'e). The refractive index for this remarkable wave, n'e, improvements to be a function of θ. n'e(θ) might be calculated utilizing the equation in Determine thirteen. The ellipse defining the remarkable index of refraction being a functionality of θ is often a conic section in the index ellipsoid.
Each and every facet of BBO, from its atomic composition to its broad software spectrum, underscores its pivotal job in modern-day science and engineering.
Yes, BBO crystals could be personalized according to particular necessities. a-BBO Crystal This involves custom sizes, shapes, and coatings. Nonetheless, customization may perhaps affect the crystal’s properties and performance, so it should be finished by an experienced. Tailor made sizes and styles is usually Slash from a bigger BBO crystal to fit particular programs.
Their supremacy In this particular area is not just by chance, but a result of their intrinsic and meticulously crafted Attributes.
This is particularly critical in biological and professional medical research the place certain compounds or cells are tagged with fluorescent markers. The 266nm light can excite these markers, building them jump out Plainly against a history, therefore facilitating thorough Investigation.