Faculty Directory

I am a staff scientist at the Quantum Technology Center under the direction of Prof. Ron Walsworth, where I lead efforts to develop quantum sensors for applications in the physical sciences, life sciences, and industry. One of my current projects is to develop nitrogen-vacancy (NV) quantum sensors in diamond to be used for the directional detection of neutrinos and dark matter particles. 

Previously, I completed a PhD in atomic physics and precision measurement in the Gabrielse lab at Harvard University, where I made several important contributions to the the next generation ACME III experiment which is projected to measure the shape of the electron’s charge with an order of magnitude improvement in sensitivity.

• Quantum sensing
• Quantum diamond microscopy with nitrogen-vacancy (NV) centers
• New quantum materials, especially quantum defects in hexagonal boron nitride (hBN) and silicon carbide (SiC)
• Precision measurement
• New methods for dark matter searches

* denotes equal contribution

• D.G. Ang*, J. Tang*, R.L. Walsworth, “Design of a quantum diamond microscope with efficient scanning confocal readout”, arXiv:2503.00252 (2025)
• D.G. Ang, X.X. Liu, J.S. Tang, M. Shen, R. Ebadi, R. Walsworth, “Progress towards a solid-state directional dark matter detector”, in Mineral Detection of Neutrinos and Dark Matter 2024 Proceedings, arXiv:2405.01626 (2024)
• D.G. Ang, Progress towards an improved measurement of the electric dipole moment of the electron, PhD dissertation, Harvard University, (2023)
• A. Hiramoto, T. Masuda, D.G. Ang, C. Meisenhelder, C. Panda, N. Sasao, S. Uetake, X. Wu, D. DeMille, J.M. Doyle, G. Gabrielse, K. Yoshimura, “SiPM module for the ACME III electron EDM search”, Nuclear Instruments and Methods in Physics Research A 1045, 167513 (2023)
• T. Masuda, A. Hiramoto, D.G. Ang, C. Meisenhelder, C. D. Panda, N. Sasao, S. Uetake, X. Wu, D. P. DeMille, J. M. Doyle, G. Gabrielse, K. Yoshimura, “High-sensitivity low-noise photodetector using large-area silicon photomultiplier”, Optics Express 31(2), 1943-1957 (2023)
• D.G. Ang, C. Meisenhelder, C. Panda, X. Wu, D. DeMille, J. Doyle, G. Gabrielse, “Measurement of the H³Δ₁ Radiative Lifetime in ThO”, Physical Review A 106, 022808 (2022)
• X. Wu, P. Hu, Z. Han, D.G. Ang, C. Meisenhelder, G. Gabrielse, J.M. Doyle, D. DeMille, “Electrostatic focusing of cold and heavy molecules for the ACME electron EDM search”, New Journal of Physics 24, 073043 (2022)
• T. Masuda, D.G. Ang, N. R. Hutzler, C. Meisenhelder, N. Sasao, S. Uetake, X. Wu, D. DeMille, G. Gabrielse, J.M. Doyle, K. Yoshimura, “Suppression of the optical crosstalk in a multi-channel silicon photomultiplier array”, Optics Express 29(11), 16914-16926 (2021)
• X. Wu, Z. Han, J. Chow, D.G. Ang, C. Meisenhelder, C.D. Panda, E. West, G. Gabrielse, J.M. Doyle, D. DeMille, “The metastable Q ³Δ₂ state of ThO: A new resource for the ACME electron EDM search”, New Journal of Physics 22, 023013 (2020)
• C.D. Panda, C. Meisenhelder, M. Verma, D.G. Ang, J. Chow, Z. Lasner, X. Wu, D. DeMille, J.M. Doyle, G. Gabrielse, “Attaining the shot-noise-limit in the ACME measurement of the electron electric dipole moment”, Journal of Physics B 52, 235003 (2019)
• The ACME Collaboration: V. Andreev, D.G. Ang, D. DeMille, J.M. Doyle, J. Haefner, N.R. Hutzler, Z. Lasner, C. Meisenhelder, B.R. O’Leary, C.D. Panda, A.D. West, E.P. West, X. Wu, “Improved limit on the electric dipole moment of the electron”, Nature 562, 355-360 (2018)
• S.K. Peck, N. Lane, D.G. Ang, L.R. Hunter, “Using Tensor Light Shifts to Measure and Cancel a Cell’s Quadrupolar Frequency Shift”, Physical Review A 93, 023426  (2016)
• D.G. Ang, In Search of New Geometries for Probing Spin-Spin Interactions, Bachelor's thesis, Amherst College (2015)
• L.R. Hunter, S.K. Peck, D. Ang, D.K. Kim, D. Stein, D. Orbaker, A. Foss, M.T. Hummon, J.E. Gordon, J.F. Lin, “Bounds on LLI violation and long-range spin-spin interactions using Hg, Cs, and the earth”, In Proceedings of the Sixth Meeting on CPT and Lorentz Symmetry, World Scientific, pp. 1-4 (2014)
• L.R. Hunter, D.G. Ang, “Using Geoelectrons to Search for Velocity-Dependent Spin-Spin Interactions”, Physical Review Letters 112, 091803 (2014)
• L.R. Hunter, J. Gordon, S. Peck, D. Ang, J.-F. Lin, “Using the Earth as a polarized electron source to search for long-range spin-spin interactions”, Science 339, 928 (2013)