David Wayne Carroll

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:

8252772, Aug 28, 2012

Filed:

May 25, 2007

Appl. No.:

12/302382

Inventors:

Suzy Torti - Winston-Salem NC, US
Frank Torti - Winston-Salem NC, US
David Loren Carroll - Winston-Salem NC, US
Steven Akman - Greensboro NC, US
Omkaram Nalamasu - San Jose CA, US
Pulickel Ajayan - Houston TX, US

Assignee:

Wake Forest University - Winston Salem NC

International Classification:

A61K 31/69
A61K 31/13

US Classification:

514 64, 514579, 977742, 977915

Abstract:

The present invention provides nanoscale and microscale compositions useful for a variety of purposes, including the diagnosis and treatment of diseases. In one embodiment, the present invention provides a disease treatment system comprising a thermal induction agent and a radiation source, wherein the thermal induction agent comprises at least one carbon nanotube, at least one carbon microtube, or a mixture thereof.

US Patent:

8267960, Sep 18, 2012

Filed:

Jan 9, 2009

Appl. No.:

12/351331

Inventors:

Louis C. Argenta - Winston-Salem NC, US
David L. Carroll - Winston-Salem NC, US
Nichole H. Levi - Winston-Salem NC, US
Jie Liu - Winston-Salem NC, US
Michael J. Morykwas - Winston-Salem NC, US
Stephen Tatter - Winston-Salem NC, US
William D. Wagner - Clemmons NC, US

Assignee:

Wake Forest University Health Sciences - Winston-Salem NC

International Classification:

A61B 17/08

US Classification:

606215, 606213

Abstract:

The present invention relates generally to a device and method for treating tissues of the central nervous system and more particularly, but not exclusively, to a device and method for treating the brain tissue.

US Patent:

8476820, Jul 2, 2013

Filed:

Nov 1, 2007

Appl. No.:

12/447547

Inventors:

David Loren Carroll - Winston-Salem NC, US
Manoj A. G. Namboothiry - Winstom-Salem NC, US

Assignee:

Wake Forest University - Winston Salem NC

International Classification:

F21V 9/16
H01L 21/28

US Classification:

313502, 362 84, 977742, 257103

Abstract:

The present invention relates to lighting technologies and, in particular, to solid state lighting technologies. In one embodiment, the present invention provides a lighting apparatus comprising a first electrode, a radiation transmissive second electrode, and a composite layer disposed between the first and second electrode, the composite layer comprising at least one electric field concentrator and at least one phosphor disposed in a radiation transmissive dielectric material.

US Patent:

8501233, Aug 6, 2013

Filed:

Mar 13, 2008

Appl. No.:

12/530852

Inventors:

David Loren Carroll - Winston-Salem NC, US
Nicole H. Levi - Winston-Salem NC, US

Assignee:

Wake Forest University - Winston Salem NC
Wake Forest University Health Sciences - Winston Salem NC

International Classification:

A61K 41/00
A61K 9/14
A61K 9/51
A61K 9/00
A61N 1/40

US Classification:

424489, 514492, 977742, 977743, 977752, 977906, 977911

Abstract:

The present invention relates to compositions and methods for treating cancer and, in particular, to composition and methods comprising nanostructures. In one embodiment, the present invention provides a composition comprising a mixture, the mixture comprising at least one nanoparticle and at least one chemotherapeutic.

US Patent:

8558105, Oct 15, 2013

Filed:

May 1, 2006

Appl. No.:

12/298942

Inventors:

David Loren Carroll - Winston-Salem NC, US
Jiwen Liu - Winston-Salem NC, US
Manoj A. G. Namboothiry - Winston-Salem NC, US

Assignee:

Wake Forest University - Winston Salem NC

International Classification:

H01L 31/00
H01L 21/00

US Classification:

136256, 136259, 136263, 438 82, 438 98

Abstract:

The present invention provides organic optoelectronic devices including organic photovoltaic devices. In an embodiment, the present invention provides an organic optoelectronic device comprising a fiber core, a radiation transmissive first electrode surrounding the fiber core, at least one photosensitive organic layer surrounding the first electrode and electrically connected to the first electrode, and a second electrode surrounding the organic layer and electrically connected to the organic layer.

US Patent:

8603855, Dec 10, 2013

Filed:

Oct 18, 2011

Appl. No.:

13/880290

Inventors:

David L Carroll - Winston Salem NC, US

Assignee:

Wake Forest University - Winston-Salem NC

International Classification:

H01L 31/028
H01L 31/18
H01L 31/04
H01L 31/0224

US Classification:

438 98, 438 72, 136252, 136256, 136258, 257E31011, 257E31124

Abstract:

In one aspect, optoelectronic devices are described herein. In some embodiments, an optoelectronic device comprises a fiber core, a radiation transmissive first electrode surrounding the fiber core, at least one photosensitive inorganic layer surrounding the first electrode and electrically connected to the first electrode, and a second electrode surrounding the inorganic layer and electrically connected to the inorganic layer. In some embodiments, the device comprises a photovoltaic cell.