Regular cleansing and correct storage can assist prolong the lifespan of BBO crystals. It’s also vital that you prevent exposing the crystals to disorders exterior their specified operating range, as this could potentially cause long lasting harm.
The duration with the SHG crystal drastically affects the spectral width from the reference pulse, or alternatively the bandwidth on the SHG filter.
Howdy, thanks for calling Thorlabs. The wavelength ranges with the antireflective coatings on these β-BBO crystals align Together with the respective wavelength bands that these crystals are optimized for. Requests for customizations could be produced by reaching out to us at [email protected]
This efficiency is important, specially when a person considers the era of the 266nm wavelength, the place even small inefficiencies can lead to sizeable Electricity losses.
The Electricity density of the beam really should be calculated when it comes to J/cm2. The graph to the right demonstrates why expressing the LIDT as an Vitality density gives the very best metric for brief pulse sources. Within this routine, the LIDT offered being an Power density is often applied to any beam diameter; a single does not really need to compute an adjusted LIDT to regulate for modifications in place sizing.
Damaging uniaxial α-BBO crystal is an excellent birefringent crystal, suitable for the manufacture of polarizer, polarization beam displacer, time delay compensator plate together with other birefringent gadget, specifically for UV and high electric power laser.
The second harmonic frequency wave is produced as a rare wave, that's polarized orthogonal to the basic-frequency ordinary wave.
This type of ability is priceless in predicaments wherever a specific light-weight frequency is necessary, but the resource doesn’t naturally present it. By utilizing BBO’s Qualities, scientists and engineers can properly “tune�?their light-weight resources to desired frequencies.
BBO crystals really should be dealt with with treatment to prevent scratching or harmful their surfaces. They need to be stored inside a dry, awesome area and saved from immediate sunlight. Frequent cleansing by using a delicate fabric or air blower is suggested to maintain their optical performance. When handling BBO crystals, it’s crucial to use gloves to avoid oils in the pores and skin from contaminating the crystal floor.
Typical cleaning and good storage may also help extend the lifespan of BBO crystals, ensuring their continued contribution to the sector of optics and photonics.
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This can be the so-named oo-e arrangement, as the two photons from the fundamental are polarization-oriented along the everyday axis and the second harmonic photon's polarization is during the incredible aircraft.
Several diverse section-matching techniques can be used to equalize the refractive indices of the basic and next harmonic light-weight. One technique, which makes use of linearly polarized mild plus the distinction between the everyday and remarkable refractive indices, is Type-I critical phase matching. This is a common solution for detrimental uniaxial crystals where no > ne.
Generation of deep ultraviolet radiation at 210 nm by Style-I 3rd harmonic generation is obtained inside of a set of BBO crystals with check here conversion efficiency as high as 36%.