The Single Best Strategy To Use For a-BBO Crystal
The Single Best Strategy To Use For a-BBO Crystal
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On the other hand, in many situations, the difference in the basic and 2nd harmonic pulse velocities could cause 1 pulse to substantially lag the opposite.
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A: A large harm threshold makes certain the crystal can handle far more electric power without degrading, leading to for a longer time lifespan and regular general performance.
Any contamination can degrade the optical performance from the crystal and perhaps cause damage beneath large laser energy. When storing BBO crystals, they ought to be placed inside a protective situation to prevent Bodily harm and dirt accumulation.
Now Assess the maximum ability density to that which is specified as the LIDT for your optic. Should the optic was tested in a wavelength apart from your operating wavelength, the destruction threshold needs to be scaled properly.
The second harmonic frequency wave is produced as a unprecedented wave, which is polarized orthogonal to the fundamental-frequency normal wave.
The destruction Examination might be performed on an analogous optic (shopper's optic will not be damaged). Screening may bring about added expenses or guide times. Make contact with Tech Assist for more information.
Pumped with the fourth harmonic of the Nd:YAG laser (at 266nm), a tunable OPO with sign wavelength vary among 422nm and 477nm has been noticed by angle-tuning a type I BBO crystal. Pumped by a 1mJ, 80fs Dye laser at 615nm, the OPA with two BBO crystals yields over fiftyµJ (greatest a hundred thirtyµJ),
Nevertheless, there is not any 2nd buy nonlinear outcome in alpha-BBO crystal due to the centrosymmetry in its crystal framework and so it's no use for next get nonlinear optical processes. As an alternative, alpha-BBO is broadly used for fabrication of polarizers, polarizing beam displacers, section retarders, birefringent plates, and time delay compensators Specifically All those for UV and high electric power lasers.
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Tailor made coatings could be placed on the crystal surfaces to improve their performance at distinct wavelengths or to shield the crystal from environmental elements. Having said that, it’s crucial that you note that any customization need to be completed thoroughly to avoid degrading the crystal’s optical Houses.
The temporal wander-off is commonly regarded extreme in the event the temporal lag exceeds the period of the elemental pulse. Extreme walk-off can result in temporal lag that irreparably increases the duration of your output 2nd harmonic pulse.
This is especially critical in biological and health care exploration where by distinct compounds or cells more info are tagged with fluorescent markers. The 266nm mild can excite these markers, earning them jump out Obviously in opposition to a track record, therefore facilitating comprehensive Assessment.