About a-BBO Crystal
About a-BBO Crystal
Blog Article
Be sure to use "Incorporate to Cart" to put the appealing solutions during the procuring cart. Look into with on-line payment or inquire us for the prices/availability by using the browsing cart.
The group velocities of the fundamental and next harmonic pulses are unique, even when stage-matched, and also the magnitude of the team velocity mismatch is determined by the crystal Attributes plus the optical frequencies inside the pulses.
The posture from the eco-friendly curve relies on θ. In such a case, the angle θ continues to be tuned to offer a refractive index for 515 nm gentle that matches the refractive index for 1030 nm mild. This tuning angle is therefore optimized for Variety-I SHG phase matching and also a basic-frequency enter beam of 1030 nm.
A: A superior harm threshold assures the crystal can take care of far more electric power without degrading, leading to longer lifespan and steady efficiency.
The phase-matching capabilities of BBO crystals should have Unique point out. From the intricate dance of photons, exactly where conversion from just one wavelength to another is usually wished-for, the period-matching supplied by BBO makes sure that Power losses are negligible.
You should Take note that We've a buffer built between the required harm thresholds online and the exams which We now have carried out, which accommodates variation among batches. Upon request, we can provide specific test information in addition to a screening certification.
Humidity might cause water absorption around the crystal floor, which may degrade its optical efficiency. The standard of the incident mild, like its wavelength, depth, and polarization, also can have an impact on the overall performance of BBO crystals in several purposes.
It is often needed to concentration the incident mild inside the crystal for SHG purposes, due to the fact productive generation of 2nd harmonic mild necessitates large peak intensities, like 109 W/cm2. When utilizing femtosecond pulses with reasonable energies during the nanojoule selection, acquiring the demanded peak intensities can have to have modest focal places.
BBO crystals ought to be taken care of with care to stay away from scratching or harmful their surfaces. They should be saved inside a dry, neat position and stored clear of direct daylight. Normal cleaning with a comfortable fabric or air blower is recommended to keep up their optical overall performance. When handling BBO crystals, it’s imperative that you use gloves to forestall oils from the skin from contaminating the crystal area.
Furthermore, spectroscopy, a way that’s essential in examining and comprehension the Homes of varied substances, reaps the rewards of BBO’s abilities. Spectroscopy depends over the conversation amongst mild and matter to derive insights a few material’s composition, framework, along with other Qualities.
As will probably be talked over under, There's a concentrating numerical aperture (NA) limitation on the SHG phase-matching approach just analogous to your spectral stage matching limitation reviewed during the preceding segment (
Up coming, the facility/Strength is possibly enhanced or reduced as well as optic is exposed at ten new more info areas. This method is repeated until eventually harm is noticed. The harm threshold is then assigned to become the best energy/Electricity that the optic can face up to without leading to hurt. A histogram such as that under signifies the tests of one BB1-E02 mirror.
Many distinct section-matching techniques can be utilized to equalize the refractive indices of the basic and second harmonic light-weight. One particular technique, which takes advantage of linearly polarized gentle and the distinction between the ordinary and incredible refractive indices, is Sort-I critical stage matching. It is a common technique for negative uniaxial crystals where no > ne.
BBO’s flexibility truly shines when 1 considers the breadth of its programs. It’s not only confined to 1 market of photonics but stretches across a number of domains. Acquire frequency doubling, For illustration. In this process, photons with the exact same frequency Mix inside the crystal to supply new photons with double the frequency of the initial.