David August Carlson

Address:

2135 Estes St, Lakewood, CO 80215

VIN:

1N6AD07W07C427512

Make:

NISSAN

Model:

FRONTIER

Year:

2007

US Patent:

20130178011, Jul 11, 2013

Filed:

Aug 29, 2012

Appl. No.:

13/598170

Inventors:

David S. Ginley - Evergreen CO, US
Calvin J. Curtis - Lakewood CO, US
Marinus Franciscus Antonius Maria van Hest - Lakewood CO, US
Heather A. S. Platt - Golden CO, US
Alexander Miedaner - Boulder CO, US
David E. Carlson - Williamsburg VA, US
Murry S. Bennett - Frederick MD, US
Wensheng Ren - Denver CO, US

Assignee:

ALLIANCE FOR SUSTAINABLE ENERGY, LLC - Golden CO

International Classification:

H01L 31/18

US Classification:

438 98, 438 57, 252500

Abstract:

Dopant compositions comprising a semiconductor material are described. Examples of dopant compositions comprise a particulate dopant component and a liquid or paste component, or comprise a dopant component and a particulate silicon component. Methods of forming doped regions in a semiconductor substrate material using the dopant compositions are described. A dopant composition including a dopant particulate component is described as a dopant source in a method for the formation of radiation-fired or radiation-doped contacts, for example in the formation of laser-fired or laser-doped contacts. Examples of the method find application in relation to the manufacture of photovoltaic cells. The use of doped particulate material, for example a composition including doped silicon powder, may reduce the likelihood of damage to the substrate.

US Patent:

20210055627, Feb 25, 2021

Filed:

Jul 10, 2020

Appl. No.:

16/501134

Inventors:

Scott B. Papp - Boulder CO, US
David Carlson - Boulder CO, US
Kartik Srinivasan - Rockville MD, US
Hojoog Jung - Seoul, KR

International Classification:

G02F 1/35
G02F 1/355
C23C 14/34
C23C 14/08
C23C 14/58
G03F 7/20

Abstract:

A tantala ring resonator includes a tantala ring resonator formed by ion-beam sputtering of tantalum pentoxide and exhibiting an optical quality factor in excess of 3×10, and a substrate to which the tantala ring resonator is attached. A method for fabricating nonlinear photonic devices includes depositing tantalum pentoxide with ion-beam sputtering to form a tantala layer onto a substrate, annealing the tantala layer, and etching the tantala layer to form a photonic device.

US Patent:

20200076149, Mar 5, 2020

Filed:

Sep 5, 2019

Appl. No.:

16/561564

Inventors:

- Gaithersburg MD, US
David Richard Carlson - Boulder CO, US
Daniel Durand Hickstein - Boulder CO, US
Scott Alan Diddams - Louisville CO, US

International Classification:

H01S 3/00
H01S 3/11

Abstract:

An ultrafast electro-optic laser makes a stabilized comb and includes: a comb generator that produces a frequency comb; a dielectric resonant oscillator; a phase modulator in communication with the dielectric resonant oscillator; an intensity modulator in communication with the phase modulator; an optical tailor in communication with the comb generator and that produces tailored light; a filter cavity in communication with the intensity modulator; a pulse shaper in communication with the filter cavity; a highly nonlinear fiber and compressor in communication with the pulse shaper; an interferometer in communication with the optical tailor and that produces a difference frequency from the tailored light; and an electrical stabilizer in communication with the interferometer and the comb generator and that produces the stabilization signal with a stabilized local oscillator cavity that produces a stabilized local oscillator signal that is converted into the stabilization signal and communicated to the dielectric resonant oscillator.