Invited Talk: Aerosol Characterization with Digital In-Line Holography, 21st Electromagnetic & Light Scattering XXI, Milazzo, Italy (2025). 

Talk: Aerosol Studies with Digital Holography, Physics Today-2 seminar, Kansas State University, Manhattan, KS (2025).

Talk: Improving Image Resolution in Digital Holography, KSU Physics Condensed Matter seminar, Manhattan, KS (2024).

Invited Talk: Aerosol Characterization with Digital Holography, Optica Laser Congress, Osaka, Japan (2024).

Invited Talk: Imaging Aerosol Particles with Digital Holography, Lawrence Livermore National Laboratory, Weapon Physics and Design seminar, Livermore, CA (2024).

Talk: Overview: Simulating Radiative Transport Through Fibrous Insulation, AFOSR meeting, NASA Langley Research Center, Hampton, VA (2024).

Invited Talk: Tutorial: Aerosol Characterization with Digital In-Line Holography, OSCA Workshop, ONERA, The French Aerospace Laboratory, Toulouse, France (2024).

Talk: Aerosol Studies with Digital Holography, Physics Today seminar, Kansas State University, Manhattan, KS (2024).

Invited Talk: Aerosol Characterization with Digital Holography, American Geophysical Union, San Francisco, CA (2023).

Talk: The Physics of Shadows, KSU Physics CM seminar, Manhattan, KS (2023).

Talk: Color Digital Holography of Aerosol Particles, Electromagnetic & Light Scattering XX, Almuñécar, Spain (2023).

Talk: The Color of Aerosol Particles, 5th International Conference on Atmospheric Dust, Bari, Italy (2023).

Talk: Classification and Tracking of Particulates on Mineral-Soil Surfaces with Color Digital Holography, Army Research Office Chemical Sciences PI Review, Key West, FL (2022).

Invited talk: Aerosol Characterization with Digital Holography, Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Quebec, Canada (2022).

Talk: Aerosol Characterization with Digital Holography, Department of Physics colloquium, Kansas State University, Manhattan, KS (2022).

Talk: Ambient Aerosol Characterization with Digital Holography: Fundamentals and Field Instrumentation, 15th International Conference on Target and Background Modeling & Simulation, Bagnères-de-Bigorre, France (2022).

Invited talk: Aerosol Characterization with Light Scattering and Digital Holography, Molecular Level Understanding of Atmospheric Aerosols workshop, Lake Arrowhead, CA (2022).

Talk: Aerosol Studies with Digital Holography, Physics Today seminar, Kansas State University, Manhattan, KS (2022).

Invited seminar: The Physics of Shadows in Classical Electrodynamics, Institute for Quantum Science and Engineering, Department of Physics & Astronomy, Texas A&M University, College Station, TX (2022).

Invited seminar: Aerosol Characterization with Digital Holography, Department of Atmospheric Sciences, Texas A&M University, College Station, TX (2022).

Invited talk: Digital Holography: Capabilities and Concepts for Cometary Grain and Regolith Characterization, MW-Gaia Workshop - Asteroids and Comets: Revealing the History of the Solar System, Tuusula, Finland (2021).

Talk: Studying Coarse Mode Dust Aerosols with Digital Holography from a UAV, 4th International Conference on Atmospheric Dust, Monopoli, Italy (2021).

Invited seminar: Aerosol Characterization with Light Scattering and Digital Holography, Thermo-Fisher Scientific, Environmental and Process Monitoring Division, (on-line 2021).

Invited talk: Aerosol Characterization with Digital Holography, OSA Imaging and Applied Optics Congress, Digital Holography and 3D Imaging meeting, (on-line 2021).

Invited talk: Radiative Heat Transfer in High Temperature Materials: Current Methods and Future Needs, AFOSR Hypersonic Materials Forum, (on-line 2021).

Invited talk: Aerosol Characterization with Light Scattering and Digital Holography, Michigan Technological University, Physics Colloquium, (on-line 2020).

Talk: Heterogeneous Porous Media for Thermal Transport Mitigation in Hypersonics: Radiation Model Development, AFOSR meeting, Cape Canaveral, FL (2020).

Talk: Aerosol Studies with Digital Holography, KSU Physics CM seminar Manhattan, KS (2019).

Talk: Studying Coarse-Mode Aerosol Particles with Digital Holography from a UAV, American Association for Aerosol Research, Portland, OR (2019).

Talk: Sensing and Imaging Aerosol Particles with Digital Holography from a UAV, OSA Laser Congress - Application of Lasers for Sensing & Free-Space Communication, Vienna, Austria (2019).

Invited talk: Aerosol Characterization with Digital Holography, 7th Advanced Electromagnetics Symposium, Instituto Superior Técnico, Lisbon, Portugal (2019). 

Invited seminar: Internal Fields in Soot Fractal Aggregates, Light-Scattering by Soot Particles: ONERA Workshop, Université Fédérale Toulouse Midi-Pyrénées, Toulouse, France (2019).

Invited seminar: Extinction and the Optical Theorem: Theoretical Basis and Implications for Measurement, University of Bern, Bern, Switzerland (2019).

Invited seminar: Aerosol Characterization with Light Scattering and Digital Holography, University of Bristol, Bristol, United Kingdom (2019).

Invited talk: Studying Large Aerosol Particles with Digital Holography from a UAV, International Symposium on Atmospheric Light Scattering and Remote Sensing, Hangzhou, China (2019).

Invited seminar: Advances in Digital Holography of Aerosol Particles, Zhejiang University seminar, Hangzhou, China (2019).

Talk: Advances in Digital Holography of Aerosol Particles, Electromagnetic & Light Scattering XVIII, Hangzhou, China (2019).

Poster: Field Enhanced Optical Transmission in Metal, Joint AFOSR & NSF Program Review: Quantitative Representation of Microstructure and Aerospace Materials for Extreme Environments, Alexandria, VA (2019).

Talk: Internal Fields in Soot Fractal Aggregates and the RDG Approximation, 12th International Conference on Carbonaceous Particles in the Atmosphere, Vienna, Austria (2019).

Talk: A First-Principles Model of Radiative Transport Through Fibrous Insulation, 43rd Annual Conference on Composites, Materials, and Structures, Cape Canaveral, FL (2019).

Invited talk: Imaging Aerosol Particles and Surfaces with Digital Holography, seminar, Korean Astronomy and Space Science Institute, Daejeon, South Korea (2018).

Invited talk: Digital Holography of Microparticles: Application to Aerosols, seminar, University of Alabama at Huntsville, Huntsville, AL (2018).

Invited talk: Aerosol Particle Characterization with Digital Holography: Simultaneous Scattering and Image Measurement, Progress In Electromagnetics Research Symposium, Toyama, Japan (2018).

Invited keynote address: Digital Holography of Aerosol Particles, International Conference on Target and Background Modeling & Simulation, Banyuls-sur-Mer, France (2018).

Talk: Studying Aerosol Particles with a UAV: Concept and Initial Development, International IR Target and Background Modeling & Simulation Workshop, Banyuls-sur-Mer, France (2018).

Talk: Internal Fields in Soot Fractal Aggregates, Electromagnetic & Light Scattering XVII, College Station, TX (2018).

Invited talk: Digital Holography of Aerosol Particles, Kansas State University, Department of Chemistry, Manhattan, KS (2017).

Talk: Solving the Inverse Problem for Coarse-Mode Aerosol Particle Morphology with Digital Holography, American Geophysical Union, New Orleans, LA (2017).

Talk: Solving the Inverse Problem for Coarse-Mode Aerosol Morphology, American Association for Aerosol Research, Raleigh, NC (2017).

Talk: Research in Electromagnetic Scattering, Physics Today seminar, Kansas State University, Manhattan, KS (2017).

Talk: Aerosol Characterization with Digital Holography, Department of Physics seminar, Kansas State University, Manhattan, KS (2017).

Talk: Extracting Scattering Observables from Digital Holograms: Application to Aerosol Particle Characterization, Army Research Office, Chemical Sciences Division program review, Research Triangle Park, NC (2017).

Invited talk: Digital Holography of Aerosol Particles, International Symposium on Atmospheric Light Scattering and Remote Sensing, Hefei, China (2017).

Invited seminar: Digital Holography of Aerosol Particles, Nanjing University of Information Science and Technology, Nanjing, China (2017).

Talk: Digital Holography of Aerosol Particles, OSA Digital Holography & 3D Imaging, Jeju Island, South Korea (2017).

Invited seminar: Digital Holography of Aerosol Particles, Department of Atmospheric Science, Colorado State University, Fort Collins, CO (2017).

Talk: Light Scattering and Imaging of Aerosol Particles with Digital Holography, Electromagnetic & Light Scattering XVI, College park, MD (2017).

Invited talk: Digital Holography of Aerosol Particles, Fordham University, Bronx, New York (2017).

Talk: Multi-Wavelength Digital Holography: Simultaneous Particle Imaging and Light-Scattering Pattern Measurement, American Geophysical Union, San Francisco, CA (2016).

Talk: Particle Characterization with Digital Holography, Department of Physics seminar, Kansas State University, Manhattan, KS (2016).

Talk: Two-Color Digital Holography: Simultaneous Particle Imaging and Scattering Pattern Measurement, American Association for Aerosol Research, Portland, OR (2016).

Invited talk: Particle Characterization with Digital Holography, Molecular Level Understanding of Atmospheric Aerosols workshop, Santa Cruz, CA (2016).

Invited talk: Aerosol Particle Characterization with Digital Holography, Finnish Meteorological Institution, Helsinki, Finland (2016).

Talk: Coarse-mode Particle Characterization with Digital Holography, American Geophysical Union, San Francisco, CA (2015). 

Invited talk: Aerosol Particle Characterization with Digital Holography, Department of Physics colloquium, Kansas State University, Manhattan, KS (2015).

Talk: Characterizing Aerosol Particles with Digital Holography, Center for Computational Sciences, Mississippi State University (2015).

Talk: Imaging Nonspherical Particles and Measuring their Extinction Cross Section with Digital Holography, American Association for Aerosol Research, Minneapolis, MN (2015).

Invited talk: Particle Characterization with Digital Holography, Center for Aerosol Science and Engineering, Washington University, Saint Louis, MO (2015).

Talk: Measuring the Optical Extinction of Aerosol Particles with Digital Holography, Progress In Electromagnetics Research Symposium, Prague, Czech Republic (2015).

Talk: Measuring the Optical Extinction of Aerosol Particles with Digital Holography, Electromagnetic & Light Scattering XV, Leipzig, Germany (2015).

Talk: Digital Holographic Imaging of Aerosol Particles, Society of Physics Students seminar, Mississippi State University, Mississippi State, MS (2015).

Talk: A New Method to Measure the Extinction Cross Section Using Digital Holography, American Association for Aerosol Research, Orlando, FL (2014).

Invited talk: Electromagnetic Scattering by Particles: Applications in Atmospheric and Energy Science, Center d’Energétique et de Thermique de Lyon, Lyon, France (2014).

Talk: Particle Characterization with Digital Holography,10th International Conference on Laser-Light and Interactions with Particles, Marseille, France (2014).

Invited talk: Measuring the Extinction Cross Section Using Digital Holography, Asia Oceania Geosciences Society meeting, Sapporo, Japan, (2014).

Talk: Holographic Interferometry and Polarimetry for Aerosol Particle Characterization, Bioaerosols: Characterization and Environmental Impact, Austin, TX (2014).

Invited talk: Holographic Interferometry and Polarimetry for Aerosol Particle Characterization, Optical Characterization of Atmospheric Aerosols workshop, Smolenice, Slovak Republic (2013).

Poster: A New Concept for Single Bioaerosol Particle Material Characterization, American Association for Aerosol Research, Portland, OR (2013).

Invited talk: A New Concept for Single-Particle Material Characterization, International Symposium on Atmospheric Light Scattering and Remote Sensing, Nagoya, Japan (2013).

Talk: A New Concept for Single-Particle Material Characterization, Electromagnetic & Light Scattering XIV, Lille, France (2013).

Invited seminar: Digital Holographic Imaging of Aerosol Particles in Flight, Texas A&M University, College Station, TX (2013).

Poster: Particle-Assisted Light Concentration for Solar Concentration, Optical Society of America; Optics and Photonics Congress on Energy and the Environment, Eindhoven, The Netherlands (2012).

Poster: Power-Law Patterns in Electromagnetic Scattering for Nonspherical Particles, American Association for Aerosol Research, Minneapolis, MN (2012).

Talk: Digital Holography for Airborne Particle Characterization, Concepts in Electromagnetic Scattering for Particulate-Systems Characterization workshop, Memphis, TN (2012).

Talk: Electromagnetic Scattering from Nonspherical Particles, Mississippi State University, Graduate Student Physics Association seminar (2011).

Invited talk: Digital Holographic Imaging of Aerosol Particles In-Flight, U.S. Naval Research Laboratory, Washington, D.C. (2011).

Talk: The Cause of Characteristic Lengths in Scattering Curves, Electromagnetic & Light Scattering XIII, Taormina, Italy (2011).

Invited talk: Digital Holographic Imaging of Aerosol Particles In-Flight, American Association for Aerosol Research, Orlando, FL (2011).

Talk: Digital Holographic Imaging of Aerosol Particles In-Flight, Society of Physics Students seminar, Mississippi State University, Mississippi State, MS (2011).

Poster: Digital Holographic Imaging of Aerosol Particles In-Flight, Chemical and Biological Defense Science & Technology conference, Orlando, FL (2010).

Poster: Digital Holographic Imaging of Aerosol Particles In-Flight, American Association for Aerosol Research, Portland, OR (2010).

Talk: Reflection Symmetry of a Sphere’s Internal Field and its Consequences on Scattering: Behavior of the Stokes Parameters, NATO Advanced Science Institute on Special Detection Technique (Polarimetry) and Remote Sensing workshop, Kyiv, Ukraine (2010).

Talk: A New Explanation of the Extinction Paradox, 6th International Symposium on Radiative Transfer, Antalya, Turkey (2010).

Talk: Holographic Imaging of Aerosol Particles, U.S. Army Research Laboratory seminar, Adelphi, MD (2010).

Invited talk: Holographic Imaging of Particles, Electromagnetic & Light Scattering XII conference, Helsinki, Finland (2009).

Talk: Two-Dimensional Angular Scattering Instrument for Aerosol Characterization, Chemical and Biological Defense Science & Technology conference, Dallas, TX (2009).

Poster: Two-Dimensional Angular Scattering for Single Particle Characterization, American Association for Aerosol Research, Minneapolis, MN (2009).

Talk: Two-Dimensional Angular Scattering Instrument for Aerosol Characterization, American Physical Society Four Corners meeting, Golden, CO (2009).

Talk: General Derivation of the Total Electromagnetic Cross Sections for an Arbitrary Particle, Progress In Electromagnetics Research Symposium, Moscow, Russia (2009).

Talk: Two-Dimensional Optical Scattering for Aerosol Characterization, U.S. Army Research Laboratory, Adelphi, MD (2009).

Talk: A Closer Look at the Extinction Paradox, Electromagnetic & Light Scattering XI, Hertfordshire, United Kingdom (2008).

Talk: A Microphysical Model of Diffraction in Electromagnetic Theory, Physics Department seminar, Kansas State University, Manhattan, KS (2008).

Talk: Extinction by Single and Multiple Particles, American Physical Society March meeting, New Orleans, LA (2008).

Tutorial co-speaker: Light Scattering by Particles: An Intuitive Description for Aerosol Scientists, American Association for Aerosol Research meeting, Reno, NV (2007).

Poster: The Influence of Particle Shape on the VUV Photoelectron Imaging of Nanoparticles, American Association for Aerosol Research meeting, Reno, NV (2007).

Talk: A Microscopic Perspective of Electromagnetic Scattering, 8th International Congress on Optical Particle Characterization, Graz, Austria (2007).

Poster: The Physical Origin of the Forward Character of the Electromagnetic Optical Theorem, 8th International Congress on Optical Particle Characterization, Graz, Austria (2007).

Talk: Extinction and the Electromagnetic Optical Theorem, Electromagnetic & Light Scattering X conference, Bodrum, Turkey (2007).

Poster: The Physical Origin of the Forward Character of the Electromagnetic Optical Theorem, American Physical Society March meeting, Denver, CO (2007).

Talk: Light Scattering by Nonspherical Particles, NASA Graduate Student Researchers Program symposium, Greenbelt, MD (2006).

Poster: Microscopic Model of Reflection and Refraction, Optical Society of America Frontiers in Optics conference, Rochester, NY (2006).

Talk: Patterns in Electromagnetic Scattering, American Association for Aerosol Research conference, Saint Paul, MN (2006).

Poster: Modeling Electromagnetic Scattering from Particles, Progress In Electromagnetics Research Symposium, Cambridge, MA (2006).

Poster: Modeling Light Scattering from Nonspherical Particles, NASA Graduate Student Researchers Program symposium, Greenbelt, MD (2005).

Poster: Patterns in Mie Scattering: Evolution when Normalized by the Rayleigh Cross Section, American Association for Aerosol Research, Austin, TX (2005).