Brooks H Pate, Age 592401 Jefferson Park Ave, Charlottesville, VA 22903

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2401 Jefferson Park Ave, Charlottesville, VA 22903 (434) 979-1445

Charlottesvle, VA

Frederick, MD

Gaithersburg, MD

Gordonsville, VA

Princeton, NJ

Laurel, MD

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Brooks H Pate

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Company: University of virginia Aug 1993 Position: Professor of chemistry

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Degree: Graduate or professional degree

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Professor Of Chemistry

Location:
Charlottesville, VA
Industry:
Higher Education
Work:
University of Virginia
Professor of Chemistry

Publications & IP owners

Us Patents

Segmented Chirped-Pulse Fourier Transform Spectroscopy

US Patent:
2013026, Oct 10, 2013
Filed:
Jun 7, 2013
Appl. No.:
13/912548
Inventors:
Brooks Hart Pate - Charlottesville VA, US
Justin L. Neill - Saline MI, US
Assignee:
University of Virginia Patent Foundation - Charlottesville VA
International Classification:
G01J 3/443
US Classification:
356311
Abstract:
An emission can be obtained from a sample in response to excitation using a specified range of excitation frequencies. Such excitation can include generating a specified chirped waveform and a specified downconversion local oscillator (LO) frequency using a digital-to-analog converter (DAC), upconverting the chirped waveform via mixing the chirped waveform with a specified upconversion LO frequency, frequency multiplying the upconverted chirped waveform to provide a chirped excitation signal for exciting the sample, receiving an emission from sample, the emission elicited at least in part by the chirped excitation signal, and downconverting the received emission via mixing the received emission with a signal based on the specified downconversion LO signal to provide a downconverted emission signal within the bandwidth of an analog-to-digital converter (ADC). The specified chirped waveform can include a first chirped waveform during a first duration, and a second chirped waveform during a second duration.

Chirped Pulse Frequency-Domain Comb For Spectroscopy

US Patent:
2013015, Jun 20, 2013
Filed:
Jun 17, 2011
Appl. No.:
13/704483
Inventors:
Brooks Hart Pate - Charlottesville VA, US
Kevin K. Lehmann - Crozet VA, US
Assignee:
University of Virginia Patent Foundation - Charlrttesville
International Classification:
G01N 22/00
US Classification:
324 7619
Abstract:
A pulse train comprising chirped pulses of electromagnetic energy can be used to excite a sample, such as for spectroscopic analysis. The respective chirped pulses can include a frequency sweep across a first specified bandwidth during a respective chirped pulse duration, the respective chirped pulse duration establishing a first frequency-domain comb peak separation. A width of a frequency-domain comb peak can be established at least in part by a total duration of the pulse train, and a bandwidth of the first frequency-domain comb can be determined at least in part by the first specified bandwidth of the frequency sweep of the respective chirped pulses.

Cavity-Enhanced Fourier Transform Spectroscopy For Chiral Analysis

US Patent:
2022026, Aug 25, 2022
Filed:
Jan 7, 2022
Appl. No.:
17/647364
Inventors:
- Charlottesville VA, US
Brooks Hart Pate - Charlottesville VA, US
International Classification:
G01N 21/3586
G01N 22/00
H01J 23/207
G01J 1/16
G01J 3/30
H01J 23/20
G01J 3/447
Abstract:
A chiral molecule can be defined as a molecule that has a non-superimposable mirror image. These mirror images can be referred to as enantiomers. The enantiomers generally have the same set of bond lengths and bond angles in their three-dimensional geometry. Apparatus and techniques described herein can be used to perform analysis of chiral molecules using cavity-enhanced molecular rotational spectroscopy. A sample cell can define a resonant cavity, and a sample introduction port can provide pulse-jet injection of an analyte molecule and a chiral tag to allow analysis of a complex comprising the analyte and chiral tag.

Methods And Apparatus For Direct Multiplication Fourier Transform Millimeter Wave Spectroscopy

US Patent:
2020020, Jul 2, 2020
Filed:
Mar 3, 2020
Appl. No.:
16/807270
Inventors:
- Charlottesville VA, US
Brent HARRIS - Charlottesville VA, US
Brooks Hart Pate - Charlottesville VA, US
International Classification:
G01N 22/00
G01N 21/63
G01J 3/453
G01J 3/42
G01J 3/44
Abstract:
Methods and apparatuses for direct multiplication Fourier transform millimeter wave spectroscopy are disclosed herein. A sample method includes generating at least one pulse of microwave electromagnetic energy. The sample method also includes frequency-multiplying the pulse(s) to generate at least one frequency-multiplied pulse and filtering at least one spurious harmonic of the frequency-multiplied pulse to generate at least one filtered pulse. The spurious harmonic is generated by frequency-multiplying the pulse. The method also includes exciting a sample using the filtered pulse. The method further includes detecting an emission from the sample. The emission is elicited at least in part by the filtered pulse.

Cavity-Enhanced Fourier Transform Spectroscopy For Chiral Analysis

US Patent:
2019030, Oct 3, 2019
Filed:
Oct 25, 2017
Appl. No.:
16/344688
Inventors:
- Charlottesville VA, US
Brooks Hart Pate - Charlottesville VA, US
International Classification:
G01N 21/3586
G01N 22/00
H01J 23/207
Abstract:
A chiral molecule can be defined as a molecule that has a non-superimposable mirror image. These mirror images can be referred to as enantiomers. The enantiomers generally have the same set of bond lengths and bond angles in their three-dimensional geometry. Apparatus and techniques described herein can be used to perform analysis of chiral molecules using cavity-enhanced molecular rotational spectroscopy. A sample cell can define a resonant cavity, and a sample introduction port can provide pulse jet injection of an analyte molecule and a chiral tag to allow analysis of a complex comprising the analyte and chiral tag.

Methods And Apparatus For Direct Multiplication Fourier Transform Millimeter Wave Spectroscopy

US Patent:
2019003, Jan 31, 2019
Filed:
Jun 28, 2018
Appl. No.:
16/021476
Inventors:
- Charlottesville VA, US
Brent HARRIS - Charlottesville VA, US
Brooks Hart Pate - Charlottesville VA, US
International Classification:
G01N 22/00
Abstract:
Methods and apparatuses for direct multiplication Fourier transform millimeter wave spectroscopy are disclosed herein. A sample method includes generating at least one pulse of microwave electromagnetic energy. The sample method also includes frequency-multiplying the pulse(s) to generate at least one frequency-multiplied pulse and filtering at least one spurious harmonic of the frequency-multiplied pulse to generate at least one filtered pulse. The spurious harmonic is generated by frequency-multiplying the pulse. The method also includes exciting a sample using the filtered pulse. The method further includes detecting an emission from the sample. The emission is elicited at least in part by the filtered pulse.

Frequency Hopping Spread Spectrum (Fhss) Fourier Transform Spectroscopy

US Patent:
2017013, May 18, 2017
Filed:
Jun 16, 2015
Appl. No.:
15/319313
Inventors:
Brooks Hart Pate - Charlottesville VA, US
Amanda Steber - Mattoon IL, US
Brent Harris - Charlottesville VA, US
International Classification:
G01N 21/3586
Abstract:
Apparatus and techniques for broadband Fourier transform spectroscopy can include frequency hopping spread-spectrum spectroscopy approaches. For example, an excitation source power can be spread over a specified frequency bandwidth, such as by applying a sequence of short, transform-limited pulses to a sample. Each pulse can include a specified carrier frequency, and a corresponding bandwidth of the individual pulse can be determined by a frequency domain representation when Fourier transformed. A series of short excitation pulses can be used to create an excitation sequence, such as to deliver a specified or desired amount of power to the sample, such as by having the excitation source enabled for a time comparable to a free induction decay (FID) dephasing time.

Chirped Pulse Frequency-Domain Comb For Spectroscopy

US Patent:
2015025, Sep 10, 2015
Filed:
May 21, 2015
Appl. No.:
14/718624
Inventors:
Brooks Hart Pate - Charlottesville VA, US
Kevin K. Lehmann - Crozet VA, US
International Classification:
G01N 22/00
Abstract:
A pulse train comprising chirped pulses can be used to excite a sample, such as for spectroscopic analysis. The respective chirped pulses can include a frequency sweep to establish a first frequency-domain comb. A width of frequency-domain comb peaks can be established at least in part by a total duration of the pulse train, and a bandwidth of the first frequency-domain comb can be determined at least in part by a bandwidth of the frequency sweep of the respective chirped pulses. A free-space or enclosed sample interaction region can be used.

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