Garrett J Schneider, 5250 5Th St, New Castle, DE 19720

7704644, Apr 27, 2010

Jan 25, 2006

11/307148

Garrett Schneider - New Castle DE, US
Eric D. Wetzel - Baltimore MD, US
Dennis W. Prather - Newark DE, US

University of Delaware - Newark DE
Army Research Laboratory - Aberdeen Proving Ground MD

G03H 1/02

430 1, 430 2, 359 35, 359 3

A method for fabricating three-dimensional photonic crystal structures includes providing a layer of photosensitive material; introducing a laser beams into the material; reintroducing the laser beams into the photosensitive material during a second exposure; combining results from at least the first and second exposures to produce a three-dimensionally periodic pattern in the photosensitive material. A related system includes a laser source; a grating array having a plurality of diffraction gratings located thereon; a mask plate located on a photoresist layer and arranged in registration with the grating array; a rotating shutter arranged between the grating array and the laser source, said rotating shutter being suitable for periodically blocking light from the laser source; wherein each of the diffraction gratings is positioned and oriented so as to converge all first-order diffracted spots to a common point lying in a plane of a back side of the mask plate.

7718953, May 18, 2010

Apr 12, 2007

11/786670

Dennis W. Prather - Newark DE, US
Zhaolin Lu - Newark DE, US
Janusz Murakowski - Newark DE, US
Shouyuan Shi - Newark DE, US
Garrett Schneider - New Castle DE, US

University of Delaware - Newark DE

H05H 3/04

250251, 977901, 359614, 359615, 359601

Described herein are electromagnetic traps or tweezers. Desired results are achieved by combining two recently developed techniques, 3D negative refraction flat lenses (3DNRFLs) and optical tweezers. The very unique advantages of using 3DNRFLs for electromagnetic traps have been demonstrated. Super-resolution and short focal distance of the flat lens result in a highly focused and strongly convergent beam, which is a key requirement for a stable and accurate electromagnetic trap. The translation symmetry of 3DNRFL provides translation-invariance for imaging, which allows an electromagnetic trap to be translated without moving the lens, and permits a trap array by using multiple sources with a single lens.

2006018, Aug 24, 2006

Jan 12, 2006

11/330088

Peng Yao - Newark DE, US
Dennis Prather - Newark DE, US
Janusz Murakowski - Newark DE, US
Garrett Schneider - New Castle DE, US

G02F 1/13

349187000

A method for generating images in polymers comprising: preparing a template with an extruding desired pattern; contacting a surface of a polymer with a desired pattern of the extruded surface of the template; treating the surface of the polymer with at least one of a liquid acid and vapor; treating the surface of the polymer with a high temperature for crosslinking; separating the template and polymer and revealing an acid imprint of the desired pattern on the surface of the polymer; baking the polymer to drive diffusion of the acid; and developing the polymer with at least one of a wet and dry process to produce a negative pattern in the polymer.

2007000, Jan 4, 2007

Jun 30, 2006

11/427832

Janusz Murakowski - Newark DE, US
Garrett Schneider - New Castle DE, US
Dennis Prather - Newark DE, US

UNIVERSITY OF DELAWARE - Newark DE

H01L 31/00

257014000

In one embodiment, a method of producing an optoelectronic nanostructure includes preparing a substrate; providing a quantum well layer on the substrate; etching a volume of the substrate to produce a photonic crystal. The quantum dots are produced at multiple intersections of the quantum well layer within the photonic crystal. Multiple quantum well layers may also be provided so as to form multiple vertically aligned quantum dots. In another embodiment, an optoelectronic nanostructure includes a photonic crystal having a plurality of voids and interconnecting veins; a plurality of quantum dots arranged between the plurality of voids, wherein an electrical connection is provided to one or more of the plurality of quantum dots through an associated interconnecting vein.

2013030, Nov 14, 2013

Jan 18, 2012

13/979792

Dennis W. Prather - Newark DE, US
Garrett Schneider - New Castle DE, US
Janusz Murakowski - Bear DE, US

PHASE SENSITIVE INNOVATIONS, INC. - Newark DE

H01S 3/109

372 28

Signal generating systems and methods are described. One signal generation system includes first and second lasers configured to generate first and second laser beams having respective frequencies wherein a difference in the respective frequencies corresponds to an output frequency, a photodetector configured to produce a signal at the output frequency, and first and second electro-optic modulators configured to respectively electro-optically modulate the first and second laser beams using the signal to produce respective first and second modulated optical signals, each of the first and second modulated optical signals having a respective sideband corresponding to the frequency of the other one of the first and second laser beams. The first laser is seeded with the respective sideband of the second modulated optical signal and the second laser is seeded with the respective sideband of the first modulated optical signal to phase-lock the first and second laser beams to each other.

2023010, Apr 6, 2023

Nov 29, 2022

18/070802

- Newark DE, US
Janusz Murakowski - Bear DE, US
Garrett Schneider - New Castle DE, US
Shouyuan Shi - Newark DE, US
Dennis Prather - Newark DE, US

H04B 10/516
H01Q 3/26
H04B 10/2575
H04B 1/16
H04B 10/11
H04B 10/64

A method of RF signal processing comprises receiving an incoming RF signal at each of a plurality of antenna elements that are arranged in a first pattern. The received RF signals from each of the plurality of antenna elements are modulated onto an optical carrier to generate a plurality of modulated signals that each have at least one sideband. The modulated signals are directed along a corresponding plurality of optical channels with outputs arranged in a second pattern corresponding to the first pattern. A composite optical signal is formed using light emanating from the outputs of the plurality of optical channels. Non-spatial information contained in at least one of the received RF signals is extracted from the composite signal.

2021028, Sep 9, 2021

May 17, 2021

17/322156

- Newark DE, US
Janusz Murakowski - Bear DE, US
Garrett Schneider - New Castle DE, US
Shouyuan Shi - Newark DE, US
Dennis Prather - Newark DE, US

H04B 10/516
H01Q 3/26
H04B 10/2575
H04B 1/16
H04B 10/11
H04B 10/64

A method of RF signal processing comprises receiving an incoming RF signal at each of a plurality of antenna elements that are arranged in a first pattern. The received RF signals from each of the plurality of antenna elements are modulated onto an optical carrier to generate a plurality of modulated signals that each have at least one sideband. The modulated signals are directed along a corresponding plurality of optical channels with outputs arranged in a second pattern corresponding to the first pattern. A composite optical signal is formed using light emanating from the outputs of the plurality of optical channels. Non-spatial information contained in at least one of the received RF signals is extracted from the composite signal.

2021025, Aug 19, 2021

Jan 28, 2021

17/160676

- Newark DE, US
Garrett Schneider - New Castle DE, US

H01Q 3/26
H04R 9/08

An apparatus and method is provided to correlate radiation beams, such as RF beams, optical beams, and/or acoustic beams. A plurality of sensors are distributed according to a first pattern and disposed adjacent to a first interference region. The plurality of sensors may capture incoming radiation and convert the incoming radiation to a plurality of signals. A plurality of radiating elements are distributed according to a second pattern that differs from the first pattern and are disposed adjacent to a second interference region. A plurality of channels are connected between the sensors and the radiating elements, each channel connecting a corresponding sensor to receive a corresponding signal. Each of the radiating elements is in communication with a corresponding one of the plurality of channels to provide an outgoing radiation corresponding to the signal received by the channel. The second pattern has a relationship to the first pattern such that first and second beams of incoming radiation in the first interference region captured by the plurality of sensors are respectively mapped to corresponding first and second beams of outgoing radiation emitted by the plurality of radiating elements into the second interference region.