As soon as the mixture is prepared, it is actually subjected to intense warmth right up until it melts into a liquid point out. This heating method is diligently controlled in order that the combination melts evenly and totally, as any inconsistencies could likely affect the quality of the ensuing crystals.

Howdy, thank you for getting in contact with Thorlabs. The wavelength ranges of the antireflective coatings on these β-BBO crystals align With all the respective wavelength bands that these crystals are optimized for. Requests for customizations might be created by achieving out to us at [email protected]

Standard cleansing and proper storage can help increase the lifespan of BBO crystals, making certain their continued contribution to the sphere of optics and photonics.

It is broadly utilized for nonlinear frequency conversion during the ultraviolet, visible, and in the vicinity of-infrared. The BBO crystal could be the most critical nonlinear crystal for close to-infrared optical parametric chirped-pulse amplifiers, which currently produce several optical cycle pulses with high common and ultrahigh peak powers.

BBO is of individual importance inside the seen and much UV. Numerous types of period-matching applications are achievable, such as the pursuing:

Numerous different phase-matching methods may be used to equalize the refractive indices of the fundamental and second harmonic light. A person approach, which makes use of linearly polarized gentle as well as distinction between the ordinary and extraordinary refractive indices, is Variety-I significant section matching. This can be a widespread method for damaging uniaxial crystals where no > ne.

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When pulse lengths are amongst 1 ns and 1 µs, laser-induced destruction can come about both because of absorption or possibly a dielectric breakdown (consequently, a person need to check the two CW and pulsed LIDT). Absorption is either because of an intrinsic assets in the optic or as a result of surface irregularities; thus LIDT values are only valid for optics Assembly or exceeding the area top quality requirements specified by a producer.

Physically, when the basic spectrum is nicely throughout the reference pulse spectrum, the SHG pulse depth profile is definitely the square of the fundamental depth profile, effectively truncating the period. This scenario is illustrated in Determine twenty.

While this general guideline presents a basic development, It is far from a quantitative analysis of LIDT vs wavelength. In CW purposes, By way of example, problems scales additional strongly with absorption while in the coating and substrate, which will not necessarily scale well with wavelength.

The raw materials, generally a mix of barium carbonate and boric acid, are positioned inside of a platinum crucible and heated right until they melt. The temperature is then step by step minimized, making it possible for the BBO crystal to form over many weeks. The crystal is then extracted, Slice into the specified shape, and polished to accomplish a superior-high-quality optical surface.

The crystal axis is c. The Main ray is parallel to your route accustomed to evaluate the tuning angle (θ), which happens to be optimized throughout period matching. Conversion efficiency is optimized for rays parallel for the Main ray and worse for rays at greater angles (ψ) for the Main ray.

BBO crystals even have a substantial hurt threshold, indicating they might stand up to high amounts of laser electricity with out struggling hurt. This is particularly significant in programs involving high-electric power lasers. Additionally, BBO crystals Possess get more info a superior nonlinear coefficient, which permits successful frequency conversion, a essential perform in several optical devices.

Our crystals are Employed in a wide range of purposes, like a variety of sorts of nonlinear frequency conversion and electro-optics, but in addition quantum engineering.