Normal cleaning and right storage may also help extend the lifespan of BBO crystals. It’s also important to prevent exposing the crystals to ailments outside their specified operating array, as this can cause lasting problems.
During the intricate tapestry of photonics, the 266nm technology, backed from the prowess of BBO, emerges as being a thread of paramount significance.
Hello, thanks for contacting Thorlabs. The wavelength ranges of the antireflective coatings on these β-BBO crystals align Along with the respective wavelength bands that these crystals are optimized for. Requests for customizations could be created by reaching out to us at [email protected]
A: A superior harm threshold guarantees the crystal can handle far more energy without having degrading, bringing about for a longer time lifespan and reliable overall performance.
BBO crystals can be cleaned utilizing a tender cloth or air blower. For stubborn stains, a moderate detergent or isopropyl alcohol can be employed. It’s crucial to avoid applying abrasive resources that would scratch the crystal’s surface area. When cleaning BBO crystals, it’s imperative that you use a delicate, circular motion to avoid scratching the area.
Thorlabs expresses LIDT for CW lasers like a linear electricity density measured in W/cm. On this regime, the LIDT given like a linear power density might be applied to any beam diameter; a person does not must compute an adjusted LIDT to regulate for variations in place dimensions, as shown through the graph to the ideal. Ordinary linear ability density can be calculated utilizing the equation below.
Delving further into the prowess of BBO crystals, it’s apparent that they stand for the forefront of modern photonics. Their wide transparency vary don't just bestows them with flexibility but additionally guarantees that they're suitable with varied light-weight resources.
It is usually essential to concentration the incident gentle inside the crystal for SHG applications, given that productive technology of second harmonic gentle requires large peak intensities, for instance 109 W/cm2. When utilizing femtosecond pulses with average energies while in the nanojoule variety, getting the required peak intensities can call for tiny focal spots.
When pulse lengths are among 1 ns and 1 µs, laser-induced destruction can happen either on account of absorption or maybe a dielectric breakdown (hence, a person will have to check each CW and pulsed LIDT). Absorption is either because of an intrinsic house from the optic or due to surface irregularities; Consequently LIDT values are only valid for optics Conference or exceeding the surface area excellent requirements supplied by a company.
The temporal stroll-off with the slower pulse with regard for the a lot quicker could be a considerable portion of the heart beat period. This really is illustrated in Figure 22.
The team velocity and also the period velocity are usually not equal, that means the sine wave from the provider and the envelope of the heartbeat shift via optical media at unique speeds.
When picking an SHG crystal, the heartbeat period in the laser source must be taken into account. A mismatch concerning the period and crystal thickness will produce SHG pulses lengthier in time and narrower in spectral articles than attainable less than excellent problems.
On the other hand, the nonlinear optical Houses of the-BBO crystal is vanished because of the centric symmetry with its crystal construction. It's not at all advisable to implement for NLO processes.
Generation of deep ultraviolet radiation at 210 nm by Style-I third harmonic era is accomplished in a very set of BBO crystals with conversion efficiency as click here superior as 36%.