Jingsong Zhu

US Patent:

6876796, Apr 5, 2005

Filed:

Jan 30, 2003

Appl. No.:

10/354095

Inventors:

Anthony F. Garito - Radnor PA, US
Renyuan Gao - Wayne PA, US
Renfeng Gao - Phoenixville PA, US
Yu-Ling Hsiao - Collegeville PA, US
Jingsong Zhu - Phoenixville PA, US

Assignee:

Photon-X, LLC - Malvern PA

International Classification:

G02B006/26

US Classification:

385 50, 385 24, 385 30, 385142

Abstract:

A microresonator is provided that incorporates a composite material comprising a polymer matrix and nanoparticles dispersed therein. The microresonator includes the composite material having a shape that is bounded at least in part by a reflecting surface. The shape of the microresonator allows a discrete electromagnetic frequency to set up a standing wave mode. Advantageously, the polymer matrix comprises at least one halogenated polymer and the dispersed nanoparticles comprise an outer coating layer, which may also comprise a halogenated polymer. Methods for making composite materials and microresonators are also provided. Applications include, for example, active and passive switches, add/drop filters, modulators, isolators, and integrated optical switch array circuits.

US Patent:

20030175004, Sep 18, 2003

Filed:

Feb 19, 2003

Appl. No.:

10/367683

Inventors:

Anthony Garito - Radnor PA, US
Yu-Ling Hsiao - Collegeville PA, US
Renyuan Gao - Wayne PA, US
Jingsong Zhu - Phoenixville PA, US
Brian Thomas - Exton PA, US
Anna Panackal - Philadelphia PA, US
Jaya Sharma - West Chester PA, US
Renfeng Gao - Phoenixville PA, US

International Classification:

G02B006/00

US Classification:

385/143000

Abstract:

A composite material that includes a host matrix and a plurality of dispersed nanoparticles within the host matrix. Each of the plurality of nanoparticles may include a halogenated outer coating layer that seals the nanoparticle and prevents agglomeration of the nanoparticles within the host matrix. The invention also includes a process of forming the composite material. Depending on the nanoparticle material, the composite material may have various applications including, but not limited to, optical devices, windowpanes, mirrors, mirror panels, optical lenses, optical lens arrays, optical displays, liquid crystal displays, cathode ray tubes, optical filters, optical components, all these more generally referred to as components.

US Patent:

20030180029, Sep 25, 2003

Filed:

Mar 17, 2003

Appl. No.:

10/388499

Inventors:

Anthony Garito - Radnor PA, US
Yu-Ling Hsiao - Collegeville PA, US
Renyuan Gao - Wayne PA, US
Renfeng Gao - Phoenixville PA, US
Joseph Chang - North Wales PA, US
Donald Bitting - Reading PA, US
Kazuya Takayama - Phoenixville PA, US
Jaya Sharma - West Chester PA, US
Jingsong Zhu - Phoenixville PA, US
Brian Thomas - Exton PA, US
Anna Panackal - Philadelphia PA, US

International Classification:

G02B006/10

US Classification:

385/142000, 385/129000

Abstract:

A solid substrate comprising a first major surface, a second major surface juxtaposed from and parallel or substantially parallel to the first major surface, wherein the substrate has a plurality of surface relief structures, located on the substrate between the first and second major surfaces, and extending over the substrate; wherein the solid substrate comprises a host matrix, and at least one nanoparticle within the host matrix. A process of forming a composite material, comprising at least partially coating at least one nanoparticle with a halogenated outer layer, and dispersing the at least one at least partially coated nanoparticle into a host matrix material, wherein the composite material has a first major surface and a second major surface juxtaposed from and parallel or substantially parallel to the first major surface; and wherein the composite material has a plurality of surface relief structures, located between the first and second major surfaces, and extending over the surface of the composite material. An optical waveguide comprising a core for transmitting incident light, a cladding material disposed about the core, and a plurality of surface relief structures located on the surface of the optical waveguide, wherein the core of the optical waveguide comprises a host matrix and at least one nanoparticle dispersed within the host matrix.

US Patent:

20030181616, Sep 25, 2003

Filed:

Feb 12, 2003

Appl. No.:

10/364413

Inventors:

Brian Thomas - Exton PA, US
Jingsong Zhu - Phoenixville PA, US

International Classification:

C08F114/18
C08F136/16

US Classification:

526/252000, 526/250000

Abstract:

The present invention embodies halogenated compounds that can be used as monomer units in a variety of polymeric compositions. Processes for making the monomers and polymers are provided.

US Patent:

20030202770, Oct 30, 2003

Filed:

Jan 3, 2003

Appl. No.:

10/335989

Inventors:

Anthony Garito - Radnor PA, US
Renyuan Gao - Wayne PA, US
Yu-Ling Hsiao - Collegeville PA, US
Brian Thomas - Exton PA, US
Jingsong Zhu - Phoenixville PA, US
Kazuya Takayama - Phoenixville PA, US

International Classification:

G02B006/00

US Classification:

385/141000

Abstract:

The present invention relates to optical waveguide devices and optical waveguide amplifiers for amplification in a range from 1.27 m to about 1.6 m wavelength, advantageously for about 1.3 m wavelength amplification. The present invention also relates to planar optical waveguides, fiber waveguides, and communications systems employing them. The optical waveguide devices according to the present invention comprise a host matrix including polymers, solvents, crystals, and liquid crystals. Within the host matrix, a plurality of nanoparticles can be mixed to form a nanocomposite. The host matrix itself may comprise composite materials, such as polymer nanocomposites.

US Patent:

20030234978, Dec 25, 2003

Filed:

Jan 8, 2003

Appl. No.:

10/338005

Inventors:

Anthony Garito - Radnor PA, US
Renyuan Gao - Wayne PA, US
Yu-Ling Hsiao - Collegeville PA, US
Brian Thomas - Exton PA, US
Jingsong Zhu - Phoenixville PA, US
Kazuya Takayama - Phoenixville PA, US

International Classification:

H01S003/00

US Classification:

359/341500

Abstract:

The present invention relates to optical waveguide devices and optical waveguide amplifiers for amplification in a range from 1.5 m to about 1.6 m wavelength. The present invention also relates to planar optical waveguides, fiber waveguides, and communications systems employing them. The optical waveguide devices according to the present invention comprise a polymer host matrix. Within the polymer host matrix, a plurality of nanoparticles can be incorporated to form a polymer nanocomposite. To obtain amplification in the above-described range, the nanoparticles comprises Erbium. The host matrix itself may comprise composite materials, such as polymer nanocomposites, and further the nanoparticles themselves may comprise composite materials.