Philip R Bingham

US Patent:

6999178, Feb 14, 2006

Filed:

Aug 26, 2003

Appl. No.:

10/649474

Inventors:

Gregory R. Hanson - Clinton TN, US
Philip R. Bingham - Knoxville TN, US
Ken W. Tobin - Harriman TN, US

Assignee:

UT-Battelle LLC - Oak Ridge TN

International Classification:

G01B 9/02

US Classification:

356484, 356489

Abstract:

Systems and methods are described for spatial-heterodyne interferometry for reflection and transmission (SHIRT) measurements. A method includes digitally recording a first spatially-heterodyned hologram using a first reference beam and a first object beam; digitally recording a second spatially-heterodyned hologram using a second reference beam and a second object beam; Fourier analyzing the digitally recorded first spatially-heterodyned hologram to define a first analyzed image; Fourier analyzing the digitally recorded second spatially-heterodyned hologram to define a second analyzed image; digitally filtering the first analyzed image to define a first result; and digitally filtering the second analyzed image to define a second result; performing a first inverse Fourier transform on the first result, and performing a second inverse Fourier transform on the second result. The first object beam is transmitted through an object that is at least partially translucent, and the second object beam is reflected from the object.

US Patent:

7116425, Oct 3, 2006

Filed:

Jun 27, 2003

Appl. No.:

10/607840

Inventors:

Gregory R. Hanson - Clinton TN, US
Philip R. Bingham - Knoxville TN, US

Assignee:

UT-Battelle LLC - Oak Ridge TN

International Classification:

G01B 11/02

US Classification:

356457, 356484

Abstract:

Systems and methods are described for faster processing of multiple spatially-heterodyned direct to digital holograms. A method includes of obtaining multiple spatially-heterodyned holograms, includes: digitally recording a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; digitally recording a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a first angle between a first reference beam and a first, object beam; applying a first digital filter to cut off signals around the first original origin and performing an inverse Fourier transform on the result; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a second angle between a second reference beam and a second object beam; and applying a second digital filter to cut off signals around the second original origin and performing an inverse Fourier transform on the result, wherein digitally recording the first spatially-heterodyned hologram is completed before digitally recording the second spatially-heterodyned hologram and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.

US Patent:

7119905, Oct 10, 2006

Filed:

Aug 26, 2003

Appl. No.:

10/649251

Inventors:

Philip R. Bingham - Knoxville TN, US
Gregory R. Hanson - Clinton TN, US
Ken W. Tobin - Harriman TN, US

Assignee:

UT-Battelle LLC - Oak Ridge TN

International Classification:

G01B 9/02

US Classification:

356484, 356489

Abstract:

Systems and methods are described for spatial-heterodyne interferometry for transmission (SHIFT) measurements. A method includes digitally recording a spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis using a reference beam, and an object beam that is transmitted through an object that is at least partially translucent; Fourier analyzing the digitally recorded spatially-heterodyned hologram, by shifting an original origin of the digitally recorded spatially-heterodyned hologram to sit on top of a spatial-heterodyne carrier frequency defined by an angle between the reference beam and the object beam, to define an analyzed image; digitally filtering the analyzed image to cut off signals around the original origin to define a result; and performing an inverse Fourier transform on the result.

US Patent:

7312875, Dec 25, 2007

Filed:

Apr 23, 2003

Appl. No.:

10/421444

Inventors:

Gregory R. Hanson - Clinton TN, US
Philip R. Bingham - Knoxville TN, US
John T. Simpson - Knoxville TN, US
Thomas P. Karnowski - Knoxville TN, US
Edgar Voelkl - Austin TX, US

Assignee:

UT-Battelle LLC - Oak Ridge TN

International Classification:

G01B 11/02

US Classification:

356484

Abstract:

Systems and methods are described for obtaining two-wavelength differential-phase holograms. A method includes determining a difference between a filtered analyzed recorded first spatially heterodyne hologram phase and a filtered analyzed recorded second spatially-heterodyned hologram phase.

US Patent:

7349100, Mar 25, 2008

Filed:

Jun 27, 2003

Appl. No.:

10/607824

Inventors:

Gregory R. Hanson - Clinton TN, US
Philip R. Bingham - Knoxville TN, US

Assignee:

UT-Battelle LLC - Oak Ridge TN

International Classification:

G01B 9/02

US Classification:

356489, 356484

Abstract:

Systems and methods are described for recording multiple spatially-heterodyned direct to digital holograms in one digital image. A method includes digitally recording, at a first reference beam-object beam angle, a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram to sit on top of a first spatial-heterodyne carrier frequency defined by the first reference beam-object beam angle; digitally recording, at a second reference beam-object beam angle, a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram to sit on top of a second spatial-heterodyne carrier frequency defined by the second reference beam-object beam angle; applying a first digital filter to cut off signals around the first original origin and define a first result; performing a first inverse Fourier transform on the first result; applying a second digital filter to cut off signals around the second original origin and define a second result; and performing a second inverse Fourier transform on the second result, wherein the first reference beam-object beam angle is not equal to the second reference beam-object beam angle and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.

US Patent:

7423763, Sep 9, 2008

Filed:

Mar 15, 2006

Appl. No.:

11/375898

Inventors:

Gregory R. Hanson - Clinton TN, US
Philip R. Bingham - Knoxville TN, US

Assignee:

UT-Battelle LLC - Oak Ridge TN

International Classification:

G01B 9/02

US Classification:

356489, 356484

Abstract:

Systems and methods are described for faster processing of multiple spatially-heterodyned direct to digital holograms. A method includes of obtaining multiple spatially-heterodyned holograms, includes: digitally recording a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; digitally recording a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a first angle between a first reference beam and a first object beam; applying a first digital filter to cut off signals around the first original origin and performing an inverse Fourier transform on the result; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a second angle between a second reference beam and a second object beam; and applying a second digital filter to cut off signals around the second original origin and performing an inverse Fourier transform on the result, wherein digitally recording the first spatially-heterodyned hologram is completed before digitally recording the second spatially-heterodyned hologram and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.

US Patent:

7978336, Jul 12, 2011

Filed:

Mar 16, 2009

Appl. No.:

12/381758

Inventors:

Christopher J. Mann - Knoxville TN, US
Philip R. Bingham - Knoxville TN, US

Assignee:

UT-Battelle, LLC - Oak Ridge TN

International Classification:

G01B 9/02
G01B 11/02
G01N 21/41
G01N 21/43

US Classification:

356485, 356498, 356503, 356517

Abstract:

An optical system includes more than two optical interferometers that generate interference phenomena between optical waves to measure a plurality of distances, a plurality of thicknesses, and a plurality of indices of refraction of a sample. An electromagnetic detector receives an output of the optical interferometers to render a magnified image of at least a portion of the sample. A controller reduces or eliminates undesired optical signals through a hierarchical phase unwrapping of the output of the electromagnetic detector.

US Patent:

8248614, Aug 21, 2012

Filed:

Mar 16, 2009

Appl. No.:

12/405063

Inventors:

Christopher J. Mann - Knoxville TN, US
Philip R. Bingham - Knoxville TN, US
Shaun S. Gleason - Knoxville TN, US

Assignee:

UT-Battelle, LLC - Oak Ridge TN

International Classification:

G01B 9/02

US Classification:

356485

Abstract:

An optical system performs imaging in a transmissive and reflective mode. The system includes an optical interferometer that generates interference phenomena between optical waves to measure multiple distances, thicknesses, and indices of refraction of a sample. Measurements are made through a galvanometer that scans a pre-programmed angular arc. An excitation-emission device allows an electromagnetic excitation and emission to pass through an objective in optical communication with the sample. An electromagnetic detector receives the output of the optical interferometer and the excitation-emission device to render a magnified three dimensional image of the sample.