US Patent 7306845 - Novel optical nanoparticles
http://www.freepatentsonline.com/7306845.html
This patent from NeoPhotonics Corporation teaches a variety of new nanoparticle configurations useful for optical coatings. Some representative claims are listed below.
1. A collection of particles comprising a composition selected from the group consisting of LiNbO3 and LiTaO3, the collection of particles having an average diameter no more than about 500 nm.
4. A collection of particles comprising a metal/metalloid composition selected from the group consisting of a metal/metalloid arsinide, a metal/metalloid calcinate, a metal/metalloid telluride, a metal/metalloid phosphide and a metal/metalloid selenide, the collection of particles having an average diameter from about 3 nm to about 500 nm.
13. A collection of particles comprising a glass forming host composition, a first dopant/additive that introduces an absorption at a first wavelength of the electromagnetic spectrum and an emission at a second wavelength larger than the first wavelength and a second dopant/additive that creates a lasting change in index-of-refraction of the particles as a result of exposure to a third wavelength of electromagnetic radiation, the particles having an average primary particle diameter of no more than about 500 nm.
18. A collection of particles comprising a glass forming host composition, a first dopant/additive that introduces an absorption at a first wavelength of the electromagnetic spectrum and an emission at a second wavelength larger than the first wavelength, and a second dopant/additive that introduces paramagnetism to the particles.
22. A collection of particles comprising an oxide composition, the oxide composition comprising silicon, an alkali metal or alkali earth metal and a third metal/metalloid element, the collection of particles having an average particle diameter less than about 500 nm.
This patent from NeoPhotonics Corporation teaches a variety of new nanoparticle configurations useful for optical coatings. Some representative claims are listed below.
1. A collection of particles comprising a composition selected from the group consisting of LiNbO3 and LiTaO3, the collection of particles having an average diameter no more than about 500 nm.
4. A collection of particles comprising a metal/metalloid composition selected from the group consisting of a metal/metalloid arsinide, a metal/metalloid calcinate, a metal/metalloid telluride, a metal/metalloid phosphide and a metal/metalloid selenide, the collection of particles having an average diameter from about 3 nm to about 500 nm.
13. A collection of particles comprising a glass forming host composition, a first dopant/additive that introduces an absorption at a first wavelength of the electromagnetic spectrum and an emission at a second wavelength larger than the first wavelength and a second dopant/additive that creates a lasting change in index-of-refraction of the particles as a result of exposure to a third wavelength of electromagnetic radiation, the particles having an average primary particle diameter of no more than about 500 nm.
18. A collection of particles comprising a glass forming host composition, a first dopant/additive that introduces an absorption at a first wavelength of the electromagnetic spectrum and an emission at a second wavelength larger than the first wavelength, and a second dopant/additive that introduces paramagnetism to the particles.
22. A collection of particles comprising an oxide composition, the oxide composition comprising silicon, an alkali metal or alkali earth metal and a third metal/metalloid element, the collection of particles having an average particle diameter less than about 500 nm.
Labels: NeoPhotonics Corporation
posted by blaisemouttet at 5:46 PM
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