David Allen Carroll

US Patent:

6833201, Dec 21, 2004

Filed:

Jan 31, 2003

Appl. No.:

10/356702

Inventors:

Richard Czerw - Clemson SC
David Carroll - Central SC
Sakutaro Hoshi - Central SC

Assignee:

Clemson University - Clemson SC
Yazaki Corporation - Tokyo

International Classification:

H05B 3300

US Classification:

428690, 428917, 313504, 313506, 25230116

Abstract:

A compound for use in an electro luminescent (EL) device. The compound includes a first substance in combination with a second substance. The first substance includes nanostructures in combination with an equal weight percentage of PPV derivative, whereas the second substance is a PPV derivative. The first substance makes up from greater than 0 wt % to about 3 wt % of the compound, whereas the second substance makes up the remainder. Also, an EL device made from the compound, and a method of making the EL device, are disclosed.

US Patent:

6947208, Sep 20, 2005

Filed:

Jan 24, 2003

Appl. No.:

10/351118

Inventors:

John Ballato - Clemson SC, US
David L. Carroll - Central SC, US

International Classification:

H01S003/00

US Classification:

35934132

Abstract:

An amplifying optical element for use within an optical fiber communication system is disclosed which includes a doped optical fiber, an optical excitation source which is physically integrated with and immediately adjacent to and surrounding doped optical fiber, the excitation source being capable of emitting sufficient light to enable power gain of the signal being transmitted, and an external power source electrically connected to the optical excitation source for initiating and maintaining the light emission. Preferably, the excitation source is a multilayer electrically conductive structure which includes a first layer immediately adjacent to the doped optical fiber, wherein the first layer is a transparent, electrically conductive material, a second layer adjacent to the first layer, wherein the second layer is an electroluminescing material, and a third layer adjacent to the second layer, wherein the third layer is an electrically conductive material. Most preferably, a buffer layer is included between the first and second layer and between the second and third layer. Alternatively, the excitation source may be a microring laser, which may be optically excited.

US Patent:

7110154, Sep 19, 2006

Filed:

Jun 10, 2004

Appl. No.:

10/865237

Inventors:

John Ballato - Clemson SC, US
David L. Carroll - Winston-Salem NC, US
Jeffrey R. Dimaio - Seneca SC, US

Assignee:

Clemson University - Clemson SC

International Classification:

G02F 1/03
G02F 1/00
G02F 1/01
H01J 3/14

US Classification:

359245, 359321, 359250, 359279, 250216

Abstract:

The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon polaritons. The film also includes at least a single aperture having a diameter less than the wavelength of light. In one embodiment, the surface elements can be an array of anisotropic apertures and the films can act as a polarizer. The disclosed devices can also include a material having a variable refractive index substantially adjacent to the metal film. For example, the refractive index of the adjacent material can vary according to some characteristic of the light incident to the device, for instance, the intensity or the angle of incidence of the light. In this embodiment, resonant coupling of incident light with the SPP, and hence transmittivity of the device, can depend upon the nature of incident light. The disclosed devices can be useful in, for example, remote polarizers, polarization mode dispersion, isolators, multi-color displays, switches, such as can be controlled according to incident sunlight, or optical filters, such as for eye protection devices, filtering out possibly harmful light.

US Patent:

7206114, Apr 17, 2007

Filed:

Sep 8, 2006

Appl. No.:

11/517780

Inventors:

John Ballato - Clemson SC, US
David L. Carroll - Winston-Salem NC, US
Jeffrey R. Dimaio - Seneca SC, US

Assignee:

Clemson University - Anderson SC

International Classification:

G02F 1/03
G02F 1/00
G02F 1/01
H01J 3/14

US Classification:

359245, 359321, 359250, 359279, 250216

Abstract:

The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon polaritons. The film also includes at least a single aperture having a diameter less than the wavelength of light. In one embodiment, the surface elements can be an array of anisotropic apertures and the films can act as a polarizer. The disclosed devices can also include a material having a variable refractive index substantially adjacent to the metal film. For example, the refractive index of the adjacent material can vary according to some characteristic of the light incident to the device, for instance, the intensity or the angle of incidence of the light. In this embodiment, resonant coupling of incident light with the SPP, and hence transmittivity of the device, can depend upon the nature of incident light. The disclosed devices can be useful in, for example, remote polarizers, polarization mode dispersion, isolators, multi-color displays, switches, such as can be controlled according to incident sunlight, or optical filters, such as for eye protection devices, filtering out possibly harmful light.

US Patent:

7265174, Sep 4, 2007

Filed:

Mar 21, 2002

Appl. No.:

10/103562

Inventors:

David Carroll - Central SC, US
John Ballato - Clemson SC, US
Stephen Foulger - Clemson SC, US
Richard Czerw - Clemson SC, US
Dennis Smith - Seneca SC, US
Hiren Shah - Clemson SC, US
Earl Wagener - Clemson SC, US

Assignee:

Clemson University - Clemson SC

International Classification:

C08K 3/04

US Classification:

524495, 524496

Abstract:

The disclosure provides compositions prepared by combining nanomaterials with a halide-containing polymer, thereby forming a combined polymer matrix having dispersed nanomaterials within the matrix. The nanomaterials may be carbon-based nanotubes, in some applications. A halide-containing monomer is combined with nanotubes, and then polymerized in some compositions. In other applications, a halide-containing polymer is solution processed with nanotubes to form useful compositions in the invention. Also disclosed are probes for near field detection of radiation.

US Patent:

7750071, Jul 6, 2010

Filed:

Jun 11, 2007

Appl. No.:

11/760861

Inventors:

David Carroll - Central SC, US
John Ballato - Clemson SC, US
Stephen Foulger - Clemson SC, US
Richard Czerw - Clemson SC, US
Dennis Smith - Seneca SC, US
Hiren Shah - Clemson SC, US
Earl Wagener - Clemson SC, US

Assignee:

Clemson University - Clemson SC

International Classification:

C08K 3/04

US Classification:

524496, 524495

Abstract:

The disclosure provides compositions prepared by combining nanomaterials with a halide-containing polymer, thereby forming a combined polymer matrix having dispersed nanomaterials within the matrix. The nanomaterials may be carbon-based nanotubes, in some applications. A halide-containing monomer is combined with nanotubes, and then polymerized in some compositions. In other applications, a halide-containing polymer is solution processed with nanotubes to form useful compositions in the invention. Also disclosed are probes for near field detection of radiation.

US Patent:

7834077, Nov 16, 2010

Filed:

Jan 3, 2007

Appl. No.:

11/649200

Inventors:

David Carroll - Central SC, US
John Ballato - Clemson SC, US
Stephen Foulger - Clemson SC, US
Richard Czerw - Clemson SC, US
Dennis Smith - Seneca SC, US
Hiren Shah - Clemson SC, US
Earl Wagener - Clemson SC, US

Assignee:

Clemson University Research Foundation - Clemson SC

International Classification:

C08K 3/34

US Classification:

524445, 524446, 524447, 524449, 524451, 524495, 524496

Abstract:

The disclosure provides compositions prepared by combining nanomaterials with a halide-containing polymer, thereby forming a combined polymer matrix having dispersed nanomaterials within the matrix. The nanomaterials may be carbon-based nanotubes, in some applications. A halide-containing monomer is combined with nanotubes, and then polymerized in some compositions. In other applications, a halide-containing polymer is solution processed with nanotubes to form useful compositions in the invention. Also disclosed are probes for near field detection of radiation.

US Patent:

20100314587, Dec 16, 2010

Filed:

Jun 10, 2010

Appl. No.:

12/801466

Inventors:

David Carroll - Central SC, US
John Ballato - Clemson SC, US
Stephen Foulger - Clemson SC, US
Richard Czerw - Clemson SC, US
Dennis Smith - Seneca SC, US
Hiren Shah - Clemson SC, US
Earl Wagener - Clemson SC, US

International Classification:

H01B 1/24
D01F 9/12

US Classification:

252511, 4234472, 977750

Abstract:

The disclosure provides compositions prepared by combining nanomaterials with a halide-containing polymer, thereby forming a combined polymer matrix having dispersed nanomaterials within the matrix. The nanomaterials may be carbon-based nanotubes, in some applications. A halide-containing monomer is combined with nanotubes, and then polymerized in some compositions. In other applications, a halide-containing polymer is solution processed with nanotubes to form useful compositions in the invention. Also disclosed are probes for near field detection of radiation.