This property is critical in several optical techniques, mainly because it allows for the manipulation and control of light-weight in ways that might not be probable with linear optical resources.
Howdy, thank you for contacting Thorlabs. The wavelength ranges on the antireflective coatings on these β-BBO crystals align Along with the respective wavelength bands that these crystals are optimized for. Requests for customizations may be produced by achieving out to us at [email protected]
Normal cleaning and proper storage might help lengthen the lifespan of BBO crystals, making sure their ongoing contribution to the sector of optics and photonics.
It's widely used for nonlinear frequency conversion inside the ultraviolet, visible, and in the vicinity of-infrared. The BBO crystal is definitely the most important nonlinear crystal for close to-infrared optical parametric chirped-pulse amplifiers, which presently provide number of optical cycle pulses with superior common and ultrahigh peak powers.
Delving deeper into the prowess of BBO crystals, it’s evident that they depict the forefront of recent photonics. Their broad transparency variety not merely bestows them with versatility but additionally makes sure that they're appropriate with numerous light-weight resources.
In the situation of Type-I stage matching and β-BBO crystals, the basic light-weight propagates as an extraordinary wave during the crystal, when the second harmonic gentle propagates as an ordinary wave.
The Rayleigh selection quantifies the space, measured with the beam waistline, over which the beam diameter is close to continual. The shorter the Rayleigh vary, the more info larger sized the speed of divergence.
g. 20 μm. The team velocity mismatch within the thicker substrate content may well not make a difference, as the nonlinear conversation normally takes spot only in The skinny crystal. The substrate only serves to mechanically stabilize The skinny nonlinear crystal.
The superior problems threshold of BBO crystals is particularly vital in environments wherever significant-intensity lasers would be the norm. Traditional materials could possibly falter, degrade, or even crack less than this kind of intensities.
In apply, γ is nonzero once the polarization states of sunshine inside a laboratory reference frame are usually not matched for the intrinsic principal axes from the crystal frame. To orient the two reference frames collectively, e.g. the vertically polarized light-weight through the laser on the optical table is parallel to in the crystal, we mount the nonlinear crystal in a very rotation stage to finely change γ to zero, to start with by eye using the markings within the housing after which you can additional, if needed, using the SHG output electric power as comments.
Significant nonlinear coefficients: BBO crystals have significant nonlinear coefficients that make successful frequency conversion processes with lower enter power requires feasible.
Also, it could be very desirable to employ a crystal content which may be critically phase-matched at area temperature since noncritical section matching typically will involve the operation in the crystal inside of a temperature-stabilized crystal oven. Nonetheless, the feasibility of essential phase matching might be presented only for sufficiently high peak powers.
Third harmonic generation (THG): We use THG to measure our pieces�?nonlinear conversion efficiency and period-matching angle for the supplied input wavelength. We Make certain that our merchandise satisfy the specs for THG applications.
The 266nm wavelength gives certain interactions that other wavelengths can’t, rendering it indispensable for detecting and studying certain compounds.