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OwnerSajeev John, Benjamin Emmanuel Chomski +3inventors
InventorsSajeev John, Benjamin Emmanuel Chomski, Alan Geoffrey Ozin, Ceferino Lopez Fernandez, Francisco Javier Meseguer Rico
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Method of synthesis of photonic band gap (PBG) materials. The synthesis and characterization of high quality, very large scale, face centered cubic photonic band gap (PBG) materials consisting of pure silicon, exhibiting a complete three-dimensional PBG centered on a wavelength of 1.5 μm. This is obtained by chemical vapor deposition and anchoring of disilane into a self-assembling silica opal template, wetting of a thick silicon layer on the interior surfaces of the template, and subsequent removal of the template. This achievement realizes a long standing goal in photonic materials and opens a new door for complete control of radiative emission from atoms and molecules, light localization and the integration of micron scale photonic devices into a three-dimensional all-optical micro-chip.
A three dimensional periodic composite material comprising silicon and at least one other dielectric component having an effective dielectric constant smaller than a dielectric constant of silicon, the periodic composite material having a lattice periodicity ranging from about 0.28 microns to about 1.8 microns.
An inverse silicon opal comprising close packed spherical air voids in silicon, the spherical air voids having a diameter in a range from about 0.2 to about 1.3 microns.
The inverse silicon opal according to claims 30, 31, 32 or 91 wherein said silicon is selected from the group consisting of single crystal silicon, polycrystalline silicon, nanocrystalline silicon, porous silicon and amorphous silicon.
The inverse silicon opal according to claims 30, 31, 32, 33 or 91 having dimensions in a range from 2×2×2 unit cells to a×b×c unit cells, wherein 2<a<10,000, 2<b<10,000, 2<c<10,000.
A method of growing an inverse silicon opal, comprising:
A method of growing an inverse silicon opal, comprising:
A method of growing an inverse silicon opal with a complete three dimensional photonic bandgap, comprising:
A method of growing silica spheres having a diameter between about 0.55 microns to about 1.3 microns, comprising:
The method according to claims 92 or 93 including enlarging said silica spheres prior to collecting said silica spheres by adding a fourth amount of tetraethylorthosilicate (TEOS) with stirring and thereafter stirring the suspension for a fourth effective period of time.
A method of synthesizing an opal from silica spheres, comprising;
Dependencies are inferred from the claim text.