Potassium niobate
 | |
| Names | |
|---|---|
| IUPAC name
Potassium niobate | |
| Other names
niobate, niobium potassium oxide, potassium columbate | |
| Identifiers | |
| 12030-85-2 | |
| Properties | |
| KNbO3 | |
| Molar mass | 180.003 g·mol−1 |
| Appearance | White rhombohedral crystals |
| Density | 4.640 g/cm3 |
| Hazards | |
| LD50 (Median lethal dose) |
3000 mg/kg (oral, rat) |
| Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
| Infobox references | |
Potassium niobate (KNbO3) is a perovskite ferroelectric crystal. It has nonlinear optical coefficient properties, making it common in the manufacture of lasers.[1] Nanowires of potassium niobate have been used to produce tunable coherent light. The LD50 for potassium niobate is 3000 mg/kg (oral, rat).
Use in research
Potassium niobate has been found useful in many different areas of materials science research,[2] including properties of lasers,[3] Quantum Teleportation,[4] and it has been used to study the optical properties of particulate composite materials.[5]
In addition to research in electronic memory storage,[2] potassium niobate is used in resonant doubling, a technique developed at the IBM Almaden Research Center.[3] This technique allows small infrared lasers to convert output into blue light, a critical technology for the production of blue lasers and technology dependent upon them.
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Laser pointers
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A military scientist operates a laser in a test environment.
References
- ↑ Palik, Edward D. (1998). Handbook of Optical Constants of Solids 3. Academic Press. p. 821. ISBN 978-0-12-544423-1. Retrieved 13 December 2012.
- ↑ 2.0 2.1 "In Science Fields". The Science News-Letter 62 (17): 264–265. 1952-10-25. doi:10.2307/3931381. JSTOR 3931381. Retrieved 2014-08-20. – via JSTOR (subscription required)
- ↑ 3.0 3.1 Regalado, Antonio (1995-03-31). "Blue-Light Special". Science. New Series 267 (5206): 1920. doi:10.1126/science.267.5206.1920. JSTOR 2886437. Retrieved 2014-08-20. – via JSTOR (subscription required)
- ↑ Furusawa, A.; J. L. Sørensen; S. L. Braunstein; C. A. Fuchs; H. J. Kimble; E. S. Polzik (1998-10-23). "Unconditional Quantum Teleportation". Science. New Series 282 (5389): 706–709. doi:10.1126/science.282.5389.706. JSTOR 2899257. Retrieved 2014-08-20. – via JSTOR (subscription required)
- ↑ Lakhtakia, Akhlesh; Tom G. Mackay (2007-02-08). "Electrical Control of the Linear Optical Properties of Particulate Composite Materials". Proceedings: Mathematical, Physical and Engineering Sciences 463 (2078): 583–592. doi:10.1098/rspa.2006.1783. JSTOR 20209136. Retrieved 2014-08-20. – via JSTOR (subscription required)