The amount of the solvent could be modified for different crystal dimensions Hence the lens tissue is stored damp for the whole drag but there is not any visible trace of solvent within the crystal surface once the drag is concluded. Inspect the floor and repeat if important, but only use Each individual sheet of lens tissue when.

BBO is the only NLO materials which can be made use of to provide the fifth harmonic generation (5HG) of Nd:YAG lasers at 213 nm. As a consequence of a little acceptance angle and huge angular walkoff, superior laser beam top quality (small divergence, fantastic manner ailment, etc.

Thorlabs offers a wide selection of optics optimized for use with femtosecond and picosecond laser pulses. Remember to see underneath To learn more.

As the second harmonic light propagates, its Vitality flows in a distinct path than that of the basic mild.

Even effectively beneath the brink for instant problems, some crystal resources exhibit a continual degradation throughout the utilized volume, e.

In the situation of Kind-I period matching and β-BBO crystals, the basic light propagates as a rare wave during the crystal, though the 2nd harmonic light propagates as a standard wave.

Temperature stage sensitivity: BBO crystals temperature sensitivity affects their refractive indices and in addition stage-matching issues. This needs temperature degree stabilizing or tuning applications to help keep ideal performance.

g. twenty μm. The group velocity mismatch from the thicker substrate material might not matter, since the nonlinear interaction takes area only in the thin crystal. The substrate only serves to mechanically stabilize The skinny nonlinear crystal.

BBO’s flexibility actually shines when one particular considers the breadth of its applications. It’s not simply confined to one area of interest of photonics but stretches across various domains. Choose frequency doubling, For illustration. In this method, photons With all the exact same frequency Incorporate throughout the crystal to supply new photons with double the frequency of the first.

Any scratches can degrade the optical functionality from the crystal and most likely bring about destruction underneath significant laser electrical power. For stubborn stains, a solution of mild detergent or isopropyl Liquor BBO Crystal may be gently applied to the crystal area and afterwards rinsed off with distilled h2o.

When evaluating an LIDT specified for any pulsed laser for your laser, it is critical to know the following:

BBO nonlinear crystal is actually a damaging uniaxial crystal. It provides stage matching for a variety of second-buy interactions Nearly over its entire transparency variety. This transparency ranges from 185 nm to three.three µm, as inferred from transmittance measurements employing crystal samples of a few mm thickness.

This is the so-termed oo-e arrangement, as the two photons from the basic are polarization-oriented along the everyday axis and the second harmonic photon's polarization is from the extraordinary plane.

Yet another Similarly intriguing application is optical parametric oscillation. In this, BBO allows for the conversion of a photon into two photons with various frequencies, the sum of which equals the original photon’s frequency.