Walsworth Group

John Blanchard

QTC Scientist

Ph.D. Chemistry, University of California, Berkeley, 2014
B.S. Physics and B.S. Chemistry, Arizona State University, 2010

 

John’s research utilizes magnetic resonance to measure matter in many forms. This involves developing new strategies for medical imaging and chemical analysis, as well as searching for dark matter and violations of fundamental symmetries

Fun Fact: John enjoys growing hops and brewing his own beer!

  • Low-Field J-Coupling Spectroscopy Measured with a Diamond Nitrogen Vacancy Spectrometer. Stephen J. DeVience, John W. Blanchard, Camille G. McDonnell, and Ronald L. Walsworth. arXiv:2610.24815 (2026). PDF
    BibTeX
    arXiv
  • Principles and Techniques for Agentic Research in Experimental Physics. Niko R. Reed, Declan M. Daly, Andrew J. Beling, Jordan D. Giandrea, Ronald L. Walsworth, John W. Blanchard, and Daniel Ang. arXiv:2610.17193 (2026). PDF
    BibTeX
    arXiv
  • Eigenframe Synchronization in Disordered Driven Quantum Ensembles. Saipriya Satyajit, Zechuan Yin, Jner Tzern Oon, Katrijn Everaert, Smriti Bhalerao, John W. Blanchard, Christopher Jarzynski, and Ronald L. Walsworth. arXiv:2608.17026 (2026). PDF
    BibTeX
    arXiv
  • Noise Suppression via Pulsed All-Optical Magnetometry with Nitrogen-Vacancy Ensembles. Xiechen Zheng, Jeyson Támara-Isaza, John W. Blanchard, and Ronald L. Walsworth. arXiv:2607.01615 (2026). PDF
    BibTeX
    arXiv
  • Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride. Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, and Ronald L. Walsworth. Advanced Optical Materials (2026). link PDF supplement
    BibTeX
    arXiv

  • All-optical photoluminescence response of nitrogen-vacancy ensembles in diamond at low magnetic fields. Xiechen Zheng, Jeyson Támara-Isaza, Zechuan Yin, Johannes Cremer, John W. Blanchard, Connor A. Hart, Michael Crescimanno, Paul V. Petruzzi, Matthew J. Turner, and Ronald L. Walsworth. Phys. Rev. Appl. 24, 064049 (2025). link PDF
    BibTeX
    arXiv
  • AC magnetometry in the strong drive regime with NV centers in diamond. Katrijn Everaert, Saipriya Satyajit, Jiashen Tang, Zechuan Yin, Xiechen Zheng, Jner Tzern Oon, Connor A. Hart, John W. Blanchard, and Ronald L. Walsworth. arXiv:2510.05471v1 (2025). PDF
    BibTeX
    arXiv
  • Prospects for Ultralow-Mass Nuclear Magnetic Resonance using Spin Defects in Hexagonal Boron Nitride. Declan M. Daly, Niko R. Reed, Stephen J. DeVience, Zechuan Yin, Johannes Cremer, Andrew J. Beling, John W. Blanchard, and Ronald L. Walsworth. arXiv:2505.00383v1 (2025). PDF
    BibTeX
    arXiv

  • Quantum diamond microscope for narrowband magnetic imaging with high spatial and spectral resolution. Zechuan Yin, Jiashen Tang, Connor A. Hart, John W. Blanchard, Xinyan Xiang, Saipriya Satyajit, Smriti Bhalerao, Tao Tao, Stephen J. DeVience, and Ronald L. Walsworth. Phys. Rev. Appl. 22, 054050 (2024). link PDF
    BibTeX
    arXiv
  • Nutation-based longitudinal-sensing protocols for high-field NMR with nitrogen-vacancy centers in diamond. Declan Daly, Stephen J. DeVience, Emma Huckestein, John W. Blanchard, Johannes Cremer, and Ronald L. Walsworth. Phys. Rev. Appl. 22, 024043 (2024). link PDF
    BibTeX
    arXiv

  • Quantum diamond microscope for dynamic imaging of magnetic fields. Jiashen Tang, Zechuan Yin, Connor A. Hart, John W. Blanchard, Jner Tzern Oon, Smriti Bhalerao, Jennifer M. Schloss, Matthew J. Turner, and Ronald L. Walsworth. AVS Quantum Science 5, 044403 (2023). link PDF
    BibTeX
    arXiv