- Program Year: 4
- Academic Institution: University of Maryland, College Park
- Field of Study: Physics
- Academic Advisor: Howard Milchberg
Sandia National Laboratories, New Mexico (2018)
B.S. Physics, Brigham Young University, 2015
Summary of Research
My research focuses on the study of intense laser-plasma interactions, and especially the development of laser-plasma accelerators. The interaction of an intense femtosecond laser pulse with plasma can generate TeV/m accelerating gradients for electrons and ions, orders of magnitude larger than those that conventional RF accelerators can support. Laser-plasma accelerators utilizing these enormous fields offer an opportunity to make future accelerators more compact and accessible to researchers in small, university-scale labs.
Specifically, I am interested in the rich field of near-critical density laser-plasma interaction. Many current acceleration schemes rely on exciting plasma oscillations in low density plasma or by impulsively heating thin solid density targets. In the intermediate density regime where natural plasma oscillations are near the same frequency as the incident laser, resonance leads to novel phenomena, like relativistic self-focusing of the laser pulse at relatively low peak powers or ion acceleration by expansion of strong quasi-static magnetic fields left in the laser’s wake. My lab is investigating this regime by developing thin, high density gas jets and by utilizing novel femtosecond mid-IR lasers.
The development of a compact source of bright, intense, and short pulses of charged particle radiation also provides unique imaging capabilities and applications. Relativistic electrons can produce hard x-rays and gamma rays through Bremsstrahlung, betatron oscillations or Compton scattering. These hard x-rays can be used to probe dense plasma or ultrafast processes. My research explores the application of laser-plasma accelerators in these roles, while also studying the fundamental physics which make these accelerators possible.
D. Woodbury, A. Goffin, R. M. Schwartz, J. Isaacs, and H. M. Milchberg.
"Self-guiding of long-wave infrared laser pulses mediated by avalanche
ionization," submitted for publication.
D. Woodbury, R. M. Schwartz, E. Rockafellow, J. K. Wahlstrand, and H. M. Milchberg. "Absolute measurement of laser ionization yield in atmospheric pressure range gases over 14 decades," Phys. Rev. Lett. 124, 013201 (2020).
D. Jang, R. M. Schwartz, D. Woodbury, J. Griff-McMahon, A. H. Younis, H. M. Milchberg, and K. Y. Kim, "Efficient terahertz and Brunel harmonic generation from air plasma via mid-infrared coherent control," Optica 6, 1338 (2019).
F. Salehi, A. J. Goers, L. Feder, B. Miao, D. Woodbury, and H. M. Milchberg, "Characterization of a 100 micrometer-scale cryogenically cooled gas jet for near-critical density laser-plasma experiments," Rev. Sci. Instr. 90, 103001 (2019).
D. Woodbury, R. M. Schwartz, and H. M. Milchberg, "Measurement of ultralow radiation-induced charge densities using picosecond mid-IR laser-induced breakdown," Optica 6, 811 (2019).
J. Lin, Y. Ma, R. Schwartz, D. Woodbury, J. A. Nees, M. Mathis, A. G. R. Thomas, K. Krushelnick, and H. Milchberg, "Adaptive control of laser-wakefield accelerators driven by mid-IR laser pulses," Opt. Exp. 27, 10912 (2019).
A. J. Harvey-Thompson, et al., "Constraining preheat energy deposition in MagLIF experiments with multi-frame shadowgraphy," Phys. Plasmas 26, 032707 (2019).
R. M. Schwartz, D. Woodbury, J. Isaacs, P. Sprangle, and H. M. Milchberg. "Remote detection of radioactive material using mid-IR laser-driven electron avalanche," Sci. Adv. 5, eaav6804 (2019).
M. R. Gomez, et al., "Assessing Stagnation Conditions and Identifying Trends in Magnetized Liner Inertial Fusion," IEEE Trans. Plasma Sci. 47, 2081 (2019).
B. Miao, L. Feder, J. Elle, A. J. Goers, D. Woodbury, F. Salehi, J. K. Wahlstrand, and H. M. Milchberg. "Coherent ultra-broadband laser-assisted injection radiation from a laser plasma accelerator," Phys. Rev. E 98, 043206 (2018).
D. Woodbury, L. Feder, V. Shumakova, C. Gollner, R. Schwartz, F. Salehi, B. Miao, A. Korolov, A. Pugzlys, A. Baltuska, and H. M. Milchberg, "Laser wakefield acceleration with mid-IR laser pulses," Optics Letters 43, 1131 (2018).
F. Salehi, A. .J Goers, G. A. Hine, L. Feder, D. Kuk, B. Miao, D. Woodbury, K. Y. Kim, and H. M. Milchberg, "MeV electron acceleration at 1 kHz with < 10mJ laser pulses," Optics Letters 42, 215 (2017).
D. Woodbury, "Construction of a Compact Two-Dimensional Magneto-Optical Trap for a Cold Calcium Beam," BYU Undergraduate Thesis, April 2015
"Measuring charge and weakly-ionized plasma densities over 12 orders of magnitude," D. Woodbury, R. Schwartz, E Rockafellow, and H. Milchberg, APS Division of Plasma Physics Meeting TO4.00005, Fort Lauderdale, FL, October 2019.
"Measuring Ultralow Charge Densities In Gases With Picosecond Mid-IR Laser Breakdown," D. Woodbury, R. M. Schwartz, E. Rockafellow, and H. M. Milchberg, OSA Frontiers in Optics JTu4A.36, Washington, D. C., September 2019.
"Detecting radiation in a standoff geometry with mid-IR laser breakdown," D. Woodbury, R. M. Schwartz, J. Isaacs, P. Sprangle, and H. M. Milchberg, SPIE Defense and Commercial Sensing, CBRNE XX, 11010-49, Baltimore, MD, April 2019.
"Laser wakefield acceleration in the bubble regime for mid-IR laser drivers," D. Woodbury, A. Korolov, R. Schwartz, and H. M. Milchberg. APS Division of Plasma Physics Meeting YO7.00008, Seattle, WA, November 2018.
"Radiation detection with mid-IR laser breakdown of air," D. Woodbury, R. Schwartz, J. Isaacs, P. Sprangle, and H. M. Milchberg, OSA Frontiers in Optics JW4A.35, Washington, D. C., September 2018.
"Laser wakefield acceleration with mid-IR laser pulses: Scaling and prospects," D. Woodbury, L. Feder, V. Shumakova, C. Gollner, R. Schwartz, A. Korolov, B. Miao, F. Salehi, A. Pugzlys, A. Baltuska, and H. M. Milchberg, AAC Workshop, Breckenridge, CO, August 2018.
"Laser wakefield acceleration with mid-IR laser pulses," D. Woodbury, L. Feder, V. Shumakova, C. Gollner, B. Miao, R. Schwartz, A. Baltuska, A. Pugzlys, H. M. Milchberg, OSA Frontiers in Optics FM2B.1, Washington, D. C., September 2017.
"Single-shot measurements of laser-induced avalanche breakdown demonstrating spatial and temporal control by an external source," D. Woodbury, J. K. Wahlstrand, A. J. Goers, L. Feder, B. Miao, G. A. Hine, F. Salehi, and H. M. Milchberg, APS Division of Plasma Physics Meeting CP10.00154, San Jose, CA, October 2016.
"Single-shot measurements of laser-induced avalanche breakdown seeded by an external source," D. Woodbury, J. K. Wahlstrand, and H. M. Milchberg, DTRA Basic Research Technical Review, Springfield, VA, July 2016.
"Window decompression in laser-heated MagLIF targets," D. Woodbury, K. Peterson, and A. Sefkow, APS Division of Plasma Physics Meeting GP12.00041, Savannah, GA, November 2015.
"Development of a GPU Accelerated 3-D Full-Wave Code for Electromagnetic Wave Propagation in a Cold Plasma," D. Woodbury, S. Kubota, and I. Johnson, APS Division of Plasma Physics Meeting JP8.00046, New Orleans, LA, October 28, 2014.
"Dual Species Magneto Optical Trap for the Study of Ultracold Plasma," D. Woodbury, A. Erikson, and S. Bergeson, APS 4 Corners Section Meeting I6.00005, Orem, UT, October 2014.
DOE NNSA Stewardship Science Graduate Fellowship, 2016-2020
IREAP Graduate Student Seminar Best Speaker Award, Fall 2018
IREAP Graduate Student Seminar Best Speaker Award, Fall 2017
Honorable Mention, NSF Graduate Research Fellowship Program, April 2016
Graduate School Dean's Fellowship, University of Maryland-College Park, August 2015
Graduated Summa Cum Laude, Physics, Brigham Young University, April 2015
Outstanding Undergraduate Presenter, 4 Corners Section Meeting APS, October 2014
ORCA (Office of Research and Creative Activities) Research Grant, Brigham Young University, January 2014
Dean's List, Brigham Young University, 2009-10, 2012-15
National Merit Scholarship Recipient, 2009-2015