The Single Best Strategy To Use For a-BBO Crystal
The Single Best Strategy To Use For a-BBO Crystal
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The high hurt threshold of BBO crystals is especially important in environments exactly where higher-depth lasers are the norm. Standard products could falter, degrade, or maybe break underneath these types of intensities.
β-BBO Crystal—a widely used nonlinear crystal for frequency conversion within the ultraviolet, obvious and in the vicinity of-infrared
The posture on the environmentally friendly curve is determined by θ. In this instance, the angle θ has been tuned to offer a refractive index for 515 nm gentle that matches the refractive index for 1030 nm gentle. This tuning angle is consequently optimized for Variety-I SHG stage matching and a fundamental-frequency enter beam of 1030 nm.
As Formerly mentioned, pulsed lasers generally induce a distinct kind of injury on the optic than CW lasers. Pulsed lasers generally do not heat the optic sufficient to wreck it; in its place, pulsed lasers create strong electrical fields effective at inducing dielectric breakdown in the fabric.
The Electricity density of the beam must be calculated concerning J/cm2. The graph to the ideal reveals why expressing the LIDT as an Vitality density gives the most beneficial metric for short pulse sources. With this regime, the LIDT specified as an Electrical power density might be applied to any beam diameter; just one doesn't should compute an adjusted LIDT to regulate for alterations in place dimension.
If the Rayleigh variety is a lot less than the crystal thickness, the space more than which the beam is optimally rigorous is fewer than the crystal thickness.
When the take a look at outcomes are only agent of 1 coating run, Thorlabs specifies damage threshold values that account for coating variances.
The physical, chemical, optical, and thermal Homes on the α -BBO are just like People from the BBO crystals, but the α -BBO won't exhibit the nonlinear optical Houses due to the central symmetry of its crystal construction.
BBO crystals may be obtained from a variety of suppliers specializing in optical elements. It’s imperative that you opt for a highly regarded provider to guarantee the caliber of the crystals.
Hi, I was asking yourself if It can be possible in your case to provide a BBO crystal with a tailor made coating at 532nm elementary and 266nm second harmonic technology. Finest, Ben
Filters under or the shape at The underside can be used to aid solution research or make more inquiries.
Of course, BBO crystals can click here be custom-made In keeping with certain necessities. This features customized measurements, shapes, and coatings. Even so, customization may perhaps have an effect on the crystal’s Houses and efficiency, so it ought to be finished by an expert. Personalized measurements and designs is often cut from a larger BBO crystal to fit certain programs.
The 266nm era refers back to the creation of ultraviolet gentle which has a wavelength of 266 nanometers.
The spectrally narrowed SHG pulse spectrum is alleged to become apodized, given that an result of the elemental pulse exceeding the maximum enter bandwidth Restrict will be the elimination of the very best and cheapest frequencies with the SHG pulse spectrum.