Daniel E Adams

US Patent:

20110297651, Dec 8, 2011

Filed:

Mar 30, 2011

Appl. No.:

13/065778

Inventors:

Jeffrey Squier - Golden CO, US
Dawn Vitek - Lakewood CO, US
David Kleinfeld - San Diego CA, US
Daniel Adams - Golden CO, US
Charles Durfee - Golden CO, US

International Classification:

B23K 15/00
G02B 27/44
G02B 5/04

US Classification:

21912118, 359615, 359569

Abstract:

Temporal focusing of spatially chirped femtosecond laser pulses overcomes previous limitations for ablating high aspect ratio features with low numerical aperture (NA) beams. Simultaneous spatial and temporal focusing reduces nonlinear interactions, such as self-focusing, prior to the focal plane so that deep (1 mm) features with parallel sidewalls are ablated at high material removal rates.

US Patent:

20230022903, Jan 26, 2023

Filed:

Jul 19, 2022

Appl. No.:

17/868562

Inventors:

- Golden CO, US
Daniel Adams - Westminster CO, US
Jeff Squier - Golden CO, US

International Classification:

G02B 21/00
G02B 21/06
G02B 21/36

Abstract:

Systems and methods of imaging are described. An imaging system comprises a light source configured to projecting a beam of light; a first diffraction grating configured to separating wavelengths of the projected beam of light; a first lens configured to focusing the wavelengths of the projected beam of light projecting from separated by the first diffraction grating; a reticle configured to altering each wavelength of light focused by the first lens; a second lens configured to collimating the wavelengths of light projecting from altered by the reticle; a second diffraction grating configured to multiplexing the collimated light projecting from collimated by the lens; and a third lens configured to projecting the multiplexed light onto an object plane, wherein the multiplexed light is used to generate an image of an object in the object plane.

US Patent:

20210325301, Oct 21, 2021

Filed:

Apr 12, 2021

Appl. No.:

17/228178

Inventors:

- Denver CO, US
Daniel E. Adams - Thornton CO, US
Michael Tanksalvala - Longmont CO, US
Elisabeth Shanblatt - Boulder CO, US
Margaret M. Murnane - Boulder CO, US
Henry C. Kapteyn - Boulder CO, US

International Classification:

G01N 21/47
G01N 21/45
G01N 21/956
G01N 21/33

Abstract:

Apparatus and methods for complex imaging reflectometry and refractometry using at least partially coherent light. Quantitative images yield spatially-dependent, local material information about a sample of interest. These images may provide material properties such as chemical composition, the thickness of chemical layers, dopant concentrations, mixing between layers of a sample, reactions at interfaces, etc. An incident beam of VUV wavelength or shorter is scattered off of a sample and imaged at various angles, wavelengths, and/or polarizations. The power of beam is also measured. This data is used to obtain images of a sample's absolute, spatially varying, complex reflectance or transmittance, which is then used to determine spatially-resolved, depth-dependent sample material properties.

US Patent:

20200292393, Sep 17, 2020

Filed:

Mar 16, 2020

Appl. No.:

16/820645

Inventors:

- Boulder CO, US
Daniel E. Adams - Thornton CO, US
Seth L. Cousin - Boulder CO, US

International Classification:

G01J 11/00

Abstract:

Apparatus and methods of full spatio-temporal characterization of ultrashort pulses from an input pulse-beam source. An interferometer system generates a first, second, third, and fourth replica of the input pulse-beam such that the second replica has a varying delay with respect to the first replica and the fourth replica has a varying delay with respect to the third replica. A reference plane is imaged onto a nonlinear spectral measurement device based upon the first and second replicas, and the reference plane is also imaged onto a wavefront sensitive (WFS) imaging element based on the third and fourth replicas. The signals from the WFS imaging element and the spectral signal are used to compute a pulse temporal spectral profile of the input pulse-beam.

US Patent:

20190302010, Oct 3, 2019

Filed:

May 18, 2017

Appl. No.:

16/303059

Inventors:

- Denver CO, US
Daniel E. Adams - Thornton CO, US
Michael Tanksalvala - Longmont CO, US
Elizabeth Shanblatt - Boulder CO, US
Margaret M. Murnane - Boulder CO, US
Henry C. Kapteyn - Boulder CO, US

International Classification:

G01N 21/33

Abstract:

Apparatus and methods for complex imaging reflectometry and refractometry using at least partially coherent light (). Quantitative images yield spatially-dependent, local material information about a sample () of interest. These images may provide material properties such as chemical composition, the thickness of chemical layers, dopant concentrations, mixing between layers of a sample, reactions at interfaces, etc. An incident beam () of VUV wavelength or shorter is scattered off of a sample () and imaged at various angles, wavelengths, and/or polarizations. The power of beam () is also measured. This data is used to obtain images of a sample's absolute, spatially varying, complex reflectance or transmittance, which is then used to determine spatially-resolved, depth-dependent sample material properties.

US Patent:

20190204218, Jul 4, 2019

Filed:

May 18, 2017

Appl. No.:

16/302911

Inventors:

- Denver CO, US
Daniel E. Adams - Thornton CO, US
Dennis Gardner - Alexandria VA, US
Christina L. Porter - Superior CO, US
Giulia F. Mancini - Boulder CO, US
Margaret M. Murnane - Boulder CO, US
Henry C. Kapteyn - Boulder CO, US

International Classification:

G01N 21/47
G01N 21/45
G01N 21/956

Abstract:

Apparatus and methods for forming an image of an object which involves focusing partially to fully spatially-coherent radiation onto a sample and collecting the resulting scattered radiation (the “standard data set”) on an array detector. In addition to the standard dataset, an additional measurement or plurality of measurements is made of a relatively-unscattered beam, using the array detector, which comprises the “modulus enforced probe (MEP) dataset”. This MEP dataset serves as an extra constraint, called the MEP constraint, in the phase retrieval algorithm used to reconstruct the image of the object.

US Patent:

20170069116, Mar 9, 2017

Filed:

Sep 5, 2016

Appl. No.:

15/256726

Inventors:

- Denver CO, US
Daniel E. Adams - Thornton CO, US
Charles S. Bevis - Boulder CO, US
Henry C. Kapteyn - Boulder CO, US
Margaret M. Murnane - Boulder CO, US

International Classification:

G06T 11/00
G02B 27/58
G02B 27/42

Abstract:

Apparatus and methods for Coherent Diffractive Imaging with multiple, simultaneous, spatially distinct beams chosen and configured to isolate incoherent sums of beam diffraction such that interference between the multiple beams is not present in the data prior to computationally reconstructing the image. This is accomplished through selecting the multiple beams to be non-interfering modes, or through designing the apparatus such that the interference is not recorded, or through processing the collected data to filter the interference before reconstructing the image.

US Patent:

20140103018, Apr 17, 2014

Filed:

Dec 9, 2013

Appl. No.:

13/998805

Inventors:

- Golden CO, US
Dawn Vitek - Lakewood CO, US
Charles Durfee - Boulder CO, US
Daniel Adams - Thornton CO, US
David Kleinfeld - La Jolla CA, US

Assignee:

Colorado School of Mines - Golden CO

International Classification:

B23K 26/00
B23K 26/06

US Classification:

21912161, 21912173, 21912168

Abstract:

Temporal focusing of spatially chirped femtosecond laser pulses overcomes previous limitations for ablating high aspect ratio features with low numerical aperture (NA) beams. Simultaneous spatial and temporal focusing reduces nonlinear interactions, such as self-focusing, prior to the focal plane so that deep (1 mm) features with parallel sidewalls are ablated at high material removal rates.

Author:

Daniel B. Adams

ISBN #:

0394337336

Author:

Daniel J. Adams

ISBN #:

0804206856

Author:

Daniel J. Adams

ISBN #:

0761808019

Author:

Daniel J. Adams

ISBN #:

0879078626

Author:

Daniel Adams

ISBN #:

0515058548

Author:

Daniel Adams

ISBN #:

0515074322

Author:

Daniel Adams

ISBN #:

0533149215

Author:

Daniel Adams

ISBN #:

0920295002

Address:

2768 S Lewiston St, Aurora, CO 80013

VIN:

1G8AW15F07Z153256

Make:

SATURN

Model:

ION

Year:

2007