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Deuterated potassium dihydrogen phosphate (KD 2 PO 4 or K 2 H 2 PO 4) or DKDP single crystals are widely used in non-linear optics as the second, third and fourth harmonic generators for Nd:YAG and Nd:YLF lasers.
Korea Data Systems Co., Ltd. (Korean: 코리아데이타시스템스, [2] abbreviated KDS), was an international electronics manufacturer based in Seoul, South Korea that manufactured primarily cathode-ray tube (CRT) and liquid-crystal display (LCD) computer monitors. KDS also produced word processors, laptops, and other computer hardware.
The Pockels effect occurs in crystals that lack inversion symmetry, such as monopotassium phosphate (KH 2 PO 4, abbr. KDP), potassium dideuterium phosphate (KD 2 PO 4, abbr. KD*P or DKDP), lithium niobate (LiNbO 3), beta-barium borate (BBO), barium titanate (BTO) and in other non-centrosymmetric media such as electric-field poled polymers or ...
Monopotassium phosphate can exist in several polymorphs.At room temperature it forms paraelectric crystals with tetragonal symmetry. Upon cooling to −150 °C (−238 °F) it transforms to a ferroelectric phase of orthorhombic symmetry, and the transition temperature shifts up to −50 °C (−58 °F) when hydrogen is replaced by deuterium. [8]
KDS (company), a French provider of travel and expense management systems; Korea Data Systems, a defunct South Korean monitor manufacturer; Khalsa Diwan Society Vancouver, a Canadian Sikh religious organization; Kinetic data structure, used to track moving geometric bodies in computers
SXRD (Silicon X-tal Reflective Display) is Sony's proprietary variant of liquid crystal on silicon, a technology used mainly in projection televisions and video projectors. In the front and rear-projection television market, it competes directly with JVC 's D-ILA and Texas Instruments ' DLP .
Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz.Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.
Silicon crystal being grown by the Czochralski method at Raytheon, 1956. The induction heating coil is visible, and the end of the crystal is just emerging from the melt. The technician is measuring the temperature with an optical pyrometer. The crystals produced by this early apparatus, used in an early Si plant, were only one inch in diameter.