What is a KDP crystal?

Potassium dihydrogen phosphate (KDP) and potassium dideuterium phosphate (KD*P) crystals offer excellent UV transmission, damage threshold and birefringence. Deuterated KDP, or KD*P, features an extended transmission range in the infrared, IR-shifted OH absorption bands, and an increased electro-optic coefficient.

How do you grow KDP crystals?

KDP crystals are grown industrially from large seed blocks, 0.3 m on a side, placed in tanks containing saturated solutions of KDP in water. The Page 3 temperature is gradually lowered to create a supersaturated solution, and the excess of KDP above the equilibrium level provides the driving force for crystal growth.

What is BBO crystal?

Details. Barium borate (BBO) is a versatile nonlinear crystal, suitable for use in harmonic generation operations, optical parametric oscillators, and in electro-optical applications from the near infrared to the deep ultraviolet.

What is nonlinear optics in physics?

Definition. Nonlinear optics is the study of how intense light interacts with matter. The optical response of a material usually scales linearly with the amplitude of the electric field. At high powers, however, the material properties can change more rapidly.

What is barium metaborate used for?

Barium metaborate is a microbiocide/microbiostat used as an industrial preservative in the manufacturing process of paints, paper/paper products, industrial adhesives and coatings. Barium metaborate products are formulated as soluble concentrates and ready-to-use solutions.

What is meant by nonlinear optics?

Nonlinear optics (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the polarization density P responds non-linearly to the electric field E of the light.

What is a non linear crystal?

Nonlinear optical crystals are used in many different nonlinear parametric applications. To mention a few: second harmonic generation, difference-frequency generation, optical parametric amplification, and others. A proper crystal has to be chosen in order to use it for a particular application.

How does a BBO crystal work?

BBO nonlinear crystal is a negative uniaxial crystal, which provides phase matching for various second-order interactions almost over its entire transparency range (from 185 nm to 3.3 µm, as deduced from the transmittance measurements using crystal samples of several mm thickness), making it a widely used crystal for …

How does a crystal split light?

How does a crystal split light? Light changes speed as it moves from the air through the prism. The speed change causes the light to be refracted and to enter the prism at a different angle. This makes white light split up into the colors of the spectrum.

What are nonlinear crystals?

What is third order nonlinearity?

THG is a coherent process in which one measures the purely electronic origin third-order nonlinear optical susceptibility χ (3) (−3ω; ω,ω,ω). As the harmonic wave has to follow the fundamental one, the response time is equal to the oscillation period, i.e., around 10−15 s.

What size of laser KDP crystal do you offer?

For frequency – quadrupling (4HG, output at 266 nm) of Nd:YAG laser KDP crystal is normally recommended. We offer large aperture KDP crystals (up to 400x400mm and 10- 50mm length).

What is the difference between DKDP and KDP thin crystals?

KDP crystal has lower absorption at UV wavelengths comparing to DKDP. KDP thin crystals are used for second harmonic generation of Ti:Sapphire laser radiation or pulse duration measurement in single shot autocorrelators.

What type of phase matching is used for nonlinear single crystals KDP?

For frequency-doubling (SHG) and -tripling (THG) of Nd:YAG laser at 1064 nm, both type I and type II phase-matchings can be employed for Nonlinear single crystals KDP and DKDP. For frequency – quadrupling (4HG, output at 266 nm) of Nd:YAG laser KDP crystal is normally recommended.

How to generate high intensity femtosecond KDP with EKSMA OPTICS?

KDP crystals can be supplied by EKSMA OPTICS of aperture up to dia 80 mm. Actually KDP remains the only solution for harmonic generation of very high intensity femtosecond Ti:Sapphire lasers featuring sub-tera Watt or tera Watt peak power pulses in large >30 mm diameter beams.