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In 2022, II-VI acquired laser manufacturer Coherent, Inc.. [14] and took the name Coherent Corp. Carl Johnson served as II-VI's first CEO from 1985 to 2007. He stepped down as CEO in 2007 and was named chairman of the board, a position he held until 2014. [15] Johnson was succeeded as CEO by Francis Kramer, who had been president since 1985. [13]
In 2004, the company was acquired by II-VI Incorporated. [4] Marlow Industries Incorporated became a subsidiary of II-VI Incorporated and began operating within II-VI’s Compound Semiconductors Group. [5] [6] The company opened its first offshore manufacturing facility in Ho Chi Minh City, Vietnam, in 2005.
Possibly usable for mid-infrared LEDs. II-VI: 3: Cadmium zinc telluride, CZT: CdZnTe: 1.4: 2.2: direct: Efficient solid-state x-ray and gamma-ray detector, can operate at room temperature. High electro-optic coefficient. Used in solar cells. Can be used to generate and detect terahertz radiation. Can be used as a substrate for epitaxial growth ...
It went public in 1970. Over time, Coherent acquired other laser businesses and expanded to lasers for different industries and applications. From 2004 to 2021, it grew from $400 million to almost $2 billion in revenues, in part through a series of acquisitions. In 2022, II-VI Incorporated acquired Coherent, Inc. and took the name Coherent Corp ...
Dual source and dual receivers are used for self compensation of changes in alignment, light source intensity and component efficiency. The transmitted beams from two infrared sources are superimposed onto an internal beam splitter. 50% of the overlapping sample and reference signal is passed through the gas measuring path and reflected back onto the measuring detector.
Infrared gas analyzers usually have two chambers, one is a reference chamber while the other chamber is a measurement chamber. Infrared light is emitted from some type of source on one end of the chamber, passes through a series of chambers that contains given quantities of the various gases in question.
II-VI semiconductor compounds are produced with epitaxy methods, like most semiconductor compounds. [2] The substrate plays an important role for all fabrication methods. Best growth results are obtained by substrates made from the same compound ( homoepitaxy ), but substrates of other semiconductors are often used to reduce the fabrication ...
II-VI semiconductor compound, a material composed of a metal from either group 2 or 12 of the periodic table and a nonmetal from group 16 Topics referred to by the same term This disambiguation page lists articles associated with the title II-VI .