Dennis F. Gardner Jr., Ph.D.

Physicist  |  Systems Engineer  |  AI & ML Researcher

19 peer-reviewed publications  ·  1,900+ citations  ·  h-index 18  ·  5 patents

Peer-Reviewed Publications

  1. S Divitt, S Park, H Gemar, KP Judd, H Dave, D Lin, DF Gardner, AT Watnik, “Structured illumination and image enhancement of three-dimensional and moving objects at a distance via incoherent Fourier Ptychography,” Applied Optics 63(8), C8-C14 (2024).
  2. TB DuBose, DF Gardner, AT Watnik, “Intensity-enhanced deep network wavefront reconstruction in Shack–Hartmann sensors,” Optics Letters 45(7), 1699-1702 (2020).
  3. S Divitt, DF Gardner, AT Watnik, “Imaging around corners in the mid-infrared using speckle correlations,” Optics Express 28(8), 11051-11064 (2020).
  4. DF Gardner, S Divitt, AT Watnik, “Ptychographic imaging of incoherently illuminated extended objects using speckle correlations,” Applied Optics 58(13), 3564-3569 (2019).
  5. AV Kanaev, AT Watnik, DF Gardner, C Metzler, KP Judd, P Lebow, KM Novak, & JR Lindle, “Imaging through extreme scattering in extended dynamic media,” Optics Letters 43(13), 3088-3091 (2018).
    → Paper highlighted in OSA’s 2018 Year in Review and winner of 2018 NRL publication award
  6. RM Karl, GF Mancini, JL Knobloch, TD Frazer, JN Hernandez-Charpak, B Abad, DF Gardner, ER Shanblatt, M Tanksalvala, CL Porter, CS Bevis, DE Adams, HC Kapteyn, & MM Murnane, “Full-field imaging of thermal and acoustic dynamics in an individual nanostructure using tabletop high harmonic beams,” Science Advances 4(10), eaau4295 (2018).
  7. C Bevis, R Karl Jr., J Reichanadter, DF Gardner, C Porter, E Shanblatt, M Tanksalvala, GF Mancini, H Kapteyn, M Murnane & D Adams, “Multiple beam ptychography for large field-of-view, high throughput, quantitative phase contrast imaging,” Ultramicroscopy 184(A), 164-171 (2018).
  8. A Pryor, A Rana, R Xu, JA Rodriguez, Y Yang, M Gallagher-Jones, H Jiang, K Kanhaiya, M Nathanson, J Park, S Kim, S Kim, D Nam, Y Yue, J Fan, Z Sun, B Zhang, DF Gardner, CSB Dias, Y Joti, T Hatsui, T Kameshima, Y Inubushi, K Tono, JY Lee, M Yabashi, C Song, T Ishikawa, HC Kapteyn, MM Murnane, H Heinz, J Miao, “Single-shot 3D coherent diffractive imaging of core-shell nanoparticles with elemental specificity,” Scientific Reports 8(1), 8284 (2018).
    → Collaboration with UCLA and the SACLA free-electron laser facility in Japan
  9. DF Gardner, M Tanksalvala, ER Shanblatt, X Zhang, BR Galloway, CL Porter, R Karl Jr, C Bevis, DE Adams, HC Kapteyn, MM Murnane & GF Mancini, “Subwavelength coherent imaging of periodic samples using a 13.5 nm tabletop high harmonic light source,” Nature Photonics 11, 259-263 (2017).
    → Paper highlighted in OSA’s 2017 Year in Review
    → This paper has over 150 citations
  10. ER Shanblatt, CL Porter, DF Gardner, GF Mancini, RM Karl Jr, MD Tanksalvala, CS Bevis, VH Vartanian, HC Kapteyn, DE Adams & MM Murnane, “Quantitative chemically specific coherent diffractive imaging of reactions at buried interfaces with few nanometer precision,” Nano Letters 16(9), 5444-5450 (2016).
  11. B Zhang, DF Gardner, MH Seaberg, ER Shanblatt, CL Porter, R Karl, CA Mancuso, HC Kapteyn, MM Murnane & DE Adams, “Ptychographic hyperspectral spectromicroscopy with an extreme ultraviolet high harmonic comb,” Optics Express 24(16), 18745-18754 (2016).
  12. R Karl, C Bevis, R Lopez-Rios, J Reichanadter, DF Gardner, C Porter, E Shanblatt, M Tanksalvala, GF Mancini, M Murnane, H Kapteyn & D Adams, “Spatial, spectral, and polarization multiplexed ptychography,” Optics Express 23(23), 30250-30258 (2015).
  13. B Zhang, DF Gardner, MD Seaberg, ER Shanblatt, HC Kapteyn, MM Murnane & DE Adams, “High contrast 3D imaging of surfaces near the wavelength limit using tabletop EUV ptychography,” Ultramicroscopy 158, 98-104 (2015).
    → Work featured on journal and Laser Focus World covers
    → This paper has over 75 citations
  14. MD Seaberg, B Zhang, DF Gardner, ER Shanblatt, MM Murnane, HC Kapteyn & DE Adams, “Tabletop nanometer extreme ultraviolet imaging in an extended reflection mode using coherent Fresnel ptychography,” Optica 1(1), 39-44 (2014).
    → This paper has over 125 citations
  15. T Pardini, S Boutet, J Bradley, T Döppner, LB Fletcher, DF Gardner, RM Hill, MS Hunter, J Krzywinski, M Messerschmidt, AE Pak, F Quirin, K Sokolowski-Tinten, GJ Williams, SP Hau-Riege, “Silicon mirrors for high-intensity x-ray pump and probe experiments,” Physical Review Applied 1(4), 044007 (2014).
    → Collaboration with LLNL and LCLS free-electron laser facility at SLAC
  16. B Zhang, MD Seaberg, DE Adams, DF Gardner, ER Shanblatt, JM Shaw, W Chao, EM Gullikson, F Salmassi, HC Kapteyn & MM Murnane, “Full field tabletop EUV coherent diffractive imaging in a transmission geometry,” Optics Express 21(19), 21970-21980 (2013).
  17. DE Adams, LS Martin, MD Seaberg, DF Gardner, HC Kapteyn & MM Murnane, “A generalization for optimized phase retrieval algorithms,” Optics Express 20(22), 24778-24790 (2012).
  18. DF Gardner, B Zhang, MD Seaberg, LS Martin, DE Adams, F Salmassi, E Gullikson, HC Kapteyn & MM Murnane, “High numerical aperture reflection mode coherent diffraction microscopy using off-axis apertured illumination,” Optics Express 20(17), 19050-19059 (2012).
    → This paper has over 75 citations
  19. Q Liu, Y Cui, DF Gardner, X Li, S He & II Smalyukh, “Self-alignment of plasmonic gold nanorods in reconfigurable anisotropic fluids for tunable bulk metamaterial applications,” Nano Letters 10(4), 1347-1353 (2010).
    → This paper has over 350 citations

Patents

  1. A Watnik, DF Gardner, T Dubose, “Methods and apparatuses for wavefront reconstruction,” US Patent 12,432,452, 2025.
  2. R Houvener, G Cardinale, R Lamond, M Stenner, D Moriarty, C Zhao, & DF Gardner, “Scalable Coherent Laser Array Systems,” US Patent App. 18/927,444, 2024.
  3. M Tanksalvala, DE Adams, DF Gardner, CL Porter, & GF Mancini, “Modulus-Enforced Probe,” US Patent 11,709,132, 2023.
  4. S Durvasula, DF Gardner, et al., “Systems and methods for remote optical screening of individuals in entryways,” US Patent App. 18/111,312, 2023.
  5. DF Gardner, “Apparatuses and Methods for Imaging Incoherently Illuminated Objects,” US Patent App. 17/331,932, 2021.

Other Publications

  1. AT Watnik & DF Gardner, “Wavefront Sensing in Deep Turbulence,” Optics and Photonics News 29(10), 39-45 (2018).
    → Article featured on the cover
  2. AV Kanaev, AT Watnik, DF Gardner, KP Judd, P Lebow, JR Lindle, C Metzler, & KM Novak, “Imaging Through Macroscopic Scattering Media,” Optics and Photonics News 29(12), 30-31 (2018).
  3. M Tanksalvala, C Porter, DF Gardner, X Zhang, E Shanblatt, B Galloway, R Karl Jr., C Bevis, G Mancini, D Adams, H Kapteyn & M Murnane, “Subwavelength EUV Imaging,” Optics and Photonics News 28(12), 28-29 (2017).