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Quartzlike Carbon Dioxide: An Optically Nonlinear Extended Solid at High Pressures and Temperatures

Quartzlike Carbon Dioxide: An Optically Nonlinear Extended Solid at High Pressures and Temperatures

V Iota V, CS Yoo, H Cynn

Science. 1999 Mar 5;283(5407):1510-3.

PMID: 10066168

Abstract:

An extended-solid phase, carbon dioxide phase V (CO2-V), was synthesized in a diamond anvil cell by laser heating the molecular orthorhombic phase, carbon dioxide phase III, above 40 gigapascals and 1800 kelvin. This new material can be quenched to ambient temperature above 1 gigapascal. The vibration spectrum of CO2-V is similar to that of the quartz polymorph of silicon dioxide, indicating that it is an extended covalent solid with carbon-oxygen single bonds. This material is also optically nonlinear, generating the second harmonic of a neodymium-yttrium-lithium-fluoride laser at a wavelength of 527 nanometers with a conversion efficiency that is near 0.1 percent.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP13709427	Neodymium(III) fluoride		13709-42-7	Price

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