a-BBO Crystal - An Overview
a-BBO Crystal - An Overview
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The superior injury threshold of BBO crystals is particularly critical in environments exactly where significant-intensity lasers will be the norm. Traditional components may possibly falter, degrade, as well as crack underneath these types of intensities.
Besides their use in laser frequency conversion, BBO crystals have found purposes in electro-optic modulation and quantum optics experiments.
Hi there, thank you for making contact with Thorlabs. The wavelength ranges with the antireflective coatings on these β-BBO crystals align With all the respective wavelength bands that these crystals are optimized for. Requests for customizations may be made by reaching out to us at techsupport@thorlabs.com
This improvement in clarity can lead to early diagnosis and timely intervention, potentially conserving life and strengthening patient results.
We use Numerical Aperture (NA) to describe the extent of the angular content. Preferably, the basic laser gentle could be collimated all through the crystal, due to the fact collimated light-weight resembles a bunch of rays aligned to a similar path by having an NA of zero.
Now Assess the most electric power density to that which is specified as the LIDT for your optic. If the optic was examined in a wavelength apart from your running wavelength, the harm threshold has to be scaled appropriately.
Bodily, when the basic spectrum is perfectly inside the reference pulse spectrum, the SHG pulse depth profile is definitely the square of the elemental depth profile, efficiently truncating the period. This circumstance is illustrated in Figure twenty.
The harm Examination might be carried out on the same optic (shopper's optic won't be damaged). Screening could bring about supplemental costs or direct occasions. Contact Tech Support for more information.
Taken with each other, these numerous programs underscore the immense value BBO crystals carry to numerous sectors. By its unparalleled 266nm generation, the BBO crystal is not only a Software but a catalyst, propelling developments across diverse fields.
A5: Yes, BBO crystals have excellent thermal balance and might retain their Qualities at room temperature. Which means that they may be used in a wide array of environments without necessitating Distinctive temperature Manage.
As are going to be mentioned underneath, You will find a concentrating numerical aperture (NA) limitation to the SHG section-matching approach specifically analogous on the spectral period matching limitation mentioned in the earlier part (
Since the dynamics of this process are remarkably subject to experimental parameters, it is actually difficult to arbitrarily forecast the exact results on the second harmonic pulse. These outcomes can consist of back conversion, during which second harmonic light is converted again to essential light, and spectral narrowing on the SHG pulse.
However, the nonlinear optical properties of the-BBO crystal is vanished mainly because of the centric symmetry with its crystal construction. It's not advisable to use for NLO processes.
This is particularly very important in biological and health care exploration where by unique compounds or cells are tagged with fluorescent markers. The 266nm light-weight can excite these markers, read more earning them stick out clearly versus a history, thus facilitating comprehensive Evaluation.