Top BBO Crystal Secrets
Top BBO Crystal Secrets
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Both broad-bandwidth pulses and temporal walk-off lead to a discount in the conversion efficiency, together with worsen the optical top quality of the 2nd harmonic pulses. The right crystal thickness needs to be preferred to attenuate both of those results.
Even so, it’s important to Take note that while BBO crystals can transmit UV light-weight, they ought to be taken care of with care when used in UV applications to circumvent possible damage to the crystal and make certain security.
Regrettably, it may be very difficult to compare the LIDT specification of an optic to your laser. There are actually many regimes in which a pulsed laser can damage an optic which relies within the laser's pulse size. The highlighted columns within the desk down below outline the related pulse lengths for our specified LIDT values.
As the second harmonic light-weight propagates, its Electrical power flows in a different way than that of the fundamental mild.
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Standard cleaning and right storage will help prolong the lifespan of BBO crystals. It’s also vital that you stay clear of exposing the crystals to disorders outside the house their specified running array, as this can result in lasting hurt.
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the chemical durability; e.g., some crystal materials are hygroscopic, Some others undergo chemical variations when heated in the vacuum chamber for software of a dielectric coating
The higher injury threshold of BBO crystals is particularly critical in environments where significant-intensity lasers would be the norm. Common resources may well falter, degrade, or even split beneath this kind of intensities.
A: The broad transparency array features versatility, permitting BBO crystals to be used across a diverse array of wavelengths and programs.
No matter if it’s in the development of far more efficient lasers, the exploration of quantum phenomena, or even the creation of latest optical gadgets, BBO crystals will undoubtedly go on to Enjoy a pivotal function.
The spectrally narrowed SHG pulse spectrum is alleged to get apodized, given that an result of the basic pulse exceeding the most enter bandwidth Restrict could be the elimination website of the highest and most affordable frequencies within the SHG pulse spectrum.
Finally, spectroscopy, the research of interactions in between make a difference and electromagnetic radiation, tremendously Rewards from your 266nm generation. In spectroscopic applications, unique wavelengths of sunshine interact otherwise with elements, giving a spectrum that could be analyzed to find out the fabric’s Attributes or composition.
This decreases the effective communication dimension and in addition lowers the conversion performance. Such as, BBO crystals have an angular walk-off of concerning 38 mrad for SHG at 1064 nm wavelength, which has to complete with six occasions larger than KDP crystals.