Dr. Sean P. O'Connor Profile

Dr. Sean P. O'Connor

Scientist Sr.

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 10 June 2024 Presentation

Elucidating biophysical mechanisms of directed energy exposure using quantitative phase imaging

Zachary Steelman, Sean O'Connor, Anna Sedelnikova, Matthew Conway, Stacey Martens, Joel Bixler

Proceedings Volume PC13041, PC1304107 (2024) https://doi.org/10.1117/12.3012964

KEYWORDS: Phase imaging, Directed energy weapons, Water, Biological imaging, Water content, Viscosity, Refractive index, Biomedical optics, Video, Spherical lenses

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Proceedings Article | 13 March 2024 Presentation

Elucidating biophysical mechanisms using quantitative phase imaging to track transmembrane water flux in living cells

Sean O'Connor, Anna Sedelnikova, Matthew Conway, Stacey Martens, Allen Kiester, Joel Bixler, Zachary Steelman

Proceedings Volume PC12852, PC128520O (2024) https://doi.org/10.1117/12.2688768

KEYWORDS: Phase imaging, Water content, Video, Spherical lenses, Proteins, Phase shifts, Mercury, Glia, Electric fields

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Proceedings Article | 14 March 2023 Presentation + Paper

Examining viscoelastic properties of petroleum products using impulsive stimulated Brillouin scattering

Dominik Doktor, Sean O'Connor, Vladislav Yakovlev

Proceedings Volume 12405, 124050J (2023) https://doi.org/10.1117/12.2665886

KEYWORDS: Viscoelasticity, Materials properties, Scattering, Spectroscopy, Minerals, Laser scattering, Nondestructive evaluation, Heterodyning, Dichroic mirrors, Data acquisition

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Proceedings Article | 5 March 2021 Poster + Paper

Impulsive stimulated Brillouin spectroscopy for assessing viscoelastic properties of biologically relevant aqueous solutions

Sean O'Connor, Dominik Doktor, Marlan Scully, Vladislav Yakovlev

Proceedings Volume 11645, 116451A (2021) https://doi.org/10.1117/12.2579053

KEYWORDS: Spectroscopy, Tissues, Spectral resolution, Sodium, Scattering, Rayleigh scattering, Biomedical optics

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Proceedings Article | 5 March 2021 Presentation + Paper

Impulsive stimulated Brillouin spectroscopy for non-invasive microfluidic-based viscoelastic measurements in vitro

Dominik Doktor, Sean O'Connor, James Tronolone, Abhishek Jain, Vladislav Yakovlev

Proceedings Volume 11637, 116370S (2021) https://doi.org/10.1117/12.2579090

KEYWORDS: Spectroscopy, In vitro testing, Microfluidics, Spectroscopes, Collagen, Ultraviolet radiation, Scattering, Point-of-care devices, Plasma, Lithography

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Proceedings Article | 11 March 2020 Paper

Femtosecond transient absorption spectroscopy to study the effects of low irradiance light on cytochrome c and cytochrome c reductase

Sean O'Connor, Samantha Powell, John Rickman, Gary Noojin, Nathaniel Pope, Marlan Scully, Michael Denton, Vladislav Yakovlev

Proceedings Volume 11221, 112210D (2020) https://doi.org/10.1117/12.2544012

KEYWORDS: Absorption, Absorbance, Spectroscopy, Femtosecond phenomena, Proteins, Absorption spectroscopy, Analytical research, Near infrared, Visible radiation, Crystals

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Proceedings Article | 20 February 2020 Paper

Compressed hyperspectral Raman microscope for imaging tissues and cellular structures

Mark Keppler, Eddie Gil, Sean O'Connor, Gary Noojin, Vladislav Yakovlev, Joel Bixler

Proceedings Volume 11238, 112380N (2020) https://doi.org/10.1117/12.2544571

KEYWORDS: Raman spectroscopy, Digital micromirror devices, Microscopes, Spectroscopy, Defense and security, Hyperspectral imaging, Diffraction gratings, Diffraction

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Proceedings Article | 19 February 2020 Paper

Kernel principle component analysis applied to Raman spectra to differentiate drugs administered to rabbit cornea in blind study

Sean O'Connor, Eddie Gil, Mark Keppler, Marlan Scully, Vladislav Yakovlev

Proceedings Volume 11219, 1121907 (2020) https://doi.org/10.1117/12.2546431

KEYWORDS: Cornea, Raman spectroscopy, Microscopes, Luminescence, Principal component analysis, Visualization, Aluminum, Confocal microscopy, Tissue optics, Chemical analysis

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Proceedings Article | 7 March 2019 Paper

Photon absorption in the mitochondria: Potential immediate and early events associated with photobiomodulation

Michael Denton, Cherry Gonzalez, Gary Noojin, John Rickman, Sean O'Connor, Joshua Lalonde, Vladislav Yakovlev, Nathaniel Pope

Proceedings Volume 10861, 1086106 (2019) https://doi.org/10.1117/12.2508518

KEYWORDS: FT-IR spectroscopy, Absorption, Carbon dioxide, Near infrared, Infrared spectroscopy, Spectroscopy, Electron transport, Raman spectroscopy

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Proceedings Article | 7 March 2019 Paper

Measuring cytochrome c redox state using resonance Raman spectroscopy to determine metabolic rates in electron transport chain when exposed to light

Joshua Lalonde, Sean O'Connor, Gary Noojin, Cherry Gonzales, Vladislav Yakovlev, Michael Denton

Proceedings Volume 10861, 108610I (2019) https://doi.org/10.1117/12.2508684

KEYWORDS: Raman spectroscopy, Spectroscopy, Electron transport, Near infrared, Light emitting diodes, Oxidation, Acquisition tracking and pointing, Laser therapeutics, Optical testing, Proteins

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Proceedings Article | 7 March 2019 Paper

Investigation of reaction mechanisms of cytochrome c and mitochondria with transient absorption spectroscopy

Sean O'Connor, Joshua Lalonde, John Rickman, Gary Noojin, Nathaniel Pope, Michael Denton, Marlan Scully, Vladislav Yakovlev

Proceedings Volume 10861, 108610E (2019) https://doi.org/10.1117/12.2508170

KEYWORDS: Absorption, Absorbance, Absorption spectroscopy, Mirrors, Spectroscopy, Sodium, Light, Picosecond phenomena, Proteins, Femtosecond phenomena

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Proceedings Article | 4 March 2019 Paper

(Re)defining sensitivity of chemical imaging

Sean O'Connor, Joshua Lalonde, Dawson Nodurft, Vladislav Yakovlev

Proceedings Volume 10859, 108590H (2019) https://doi.org/10.1117/12.2510974

KEYWORDS: Raman spectroscopy, Signal to noise ratio, Tissues, Spectroscopy, Imaging spectroscopy, Signal attenuation, Skin, Cornea, Chemical analysis

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Proceedings Article | 1 March 2019 Paper

Nonlinear optical properties of water from 1150 nm to 1400 nm

Christopher Marble, Joseph Clary, Gary Noojin, Sean O'Connor, Dawson Nodurft, Andrew Wharmby, Benjamin Rockwell, Marlan Scully, Vladislav Yakovlev

Proceedings Volume 10876, 108760I (2019) https://doi.org/10.1117/12.2505654

KEYWORDS: Water, Absorption, Thermal effects, Femtosecond phenomena, Infrared radiation, Transmittance, Liquids, Saturable absorption, Eye, Kerr effect, Ultrafast phenomena, Nonlinear optics

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Proceedings Article | 14 March 2018 Presentation

Rainbow from nowhere (Conference Presentation)

Dawson Nodurft, Christopher Marble, Sean O'Connor, Vladislav Yakovlev

Proceedings Volume 10516, 105160L (2018) https://doi.org/10.1117/12.2291365

KEYWORDS: Near infrared, Harmonic generation, Photons, Laser systems engineering, Femtosecond phenomena, Visible radiation, Frequency combs, Supercontinuum generation

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Proceedings Article | 22 February 2018 Paper

Zinc selenide: an extraordinarily nonlinear material

Christopher Marble, Sean O'Connor, Dawson Nodurft, Vladislav Yakovlev, Andrew Wharmby

Proceedings Volume 10528, 105281X (2018) https://doi.org/10.1117/12.2291305

KEYWORDS: Harmonic generation, Visible radiation, Mid-IR, Zinc, Spectroscopy, Infrared radiation, Ocean optics, Infrared spectroscopy, Optics manufacturing, High harmonic generation

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Proceedings Article | 19 February 2018 Presentation + Paper

Supercontinuum generation in large-mode-area photonic crystal fibers for coherent Raman microspectroscopy

Yujie Shen, Alexander Voronin, Aleksei Zheltikov, Sean O'Connor, Vladislav Yakovlev, Alexei Sokolov, Marlan Scully

Proceedings Volume 10522, 105220I (2018) https://doi.org/10.1117/12.2285103

KEYWORDS: Raman spectroscopy, Photonic crystal fibers, Imaging spectroscopy, Supercontinuum generation, Optical filters, Dispersion, Nitrogen, Picosecond phenomena, Mirrors, Spectroscopy

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Proceedings Article | 15 February 2018 Presentation + Paper

Visible supercontinuum generation from a tunable mid-infrared laser

Christopher Marble, Sean O'Connor, Dawson Nodurft, Vladislav Yakovlev, Andrew Wharmby

Proceedings Volume 10516, 105160K (2018) https://doi.org/10.1117/12.2291283

KEYWORDS: Harmonic generation, Silica, Visible radiation, Mid-IR, Microscopes, Spectroscopy, Ocean optics, Optics manufacturing, Supercontinuum generation, Calcium

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Showing 5 of 17 publications

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