Feng Pan
Postdoctoral Scholar, Materials Science and Engineering
Bio
Feng Pan is a postdoctoral scholar with Prof. Jennifer A. Dionne in the Department of Materials Science and Engineering at Stanford. He received his Ph.D. in Physical Chemistry at the University of Wisconsin Madison, advised by Prof. Randall H. Goldsmith, and M.S. in Physical Chemistry at Texas A&M University, advised by Prof. Simon W. North, and B.S. in Chemistry at Jilin University (China). His research expertise spans several aspects, including plasmonics, nanophotonics, and single-particle microresonator microscopy and spectroscopy, planar laser-induced fluorescence for molecular tagging velocimetry and thermometry in gaseous flows.
All Publications
-
Solution-phase sample-averaged single-particle spectroscopy of quantum emitters with femtosecond resolution.
Nature materials
2024
Abstract
The development of many quantum optical technologies depends on the availability of single quantum emitters with near-perfect coherence. Systematic improvement is limited by a lack of understanding of the microscopic energy flow at the single-emitter level and ultrafast timescales. Here we utilize a combination of fluorescence correlation spectroscopy and ultrafast spectroscopy to capture the sample-averaged dynamics of defects with single-particle sensitivity. We employ this approach to study heterogeneous emitters in two-dimensional hexagonal boron nitride. From milliseconds to nanoseconds, the translational, shelving, rotational and antibunching features are disentangled in time, which quantifies the normalized two-photon emission quantum yield. Leveraging the femtosecond resolution of this technique, we visualize electron-phonon coupling and discover the acceleration of polaronic formation on multi-electron excitation. Corroborated with theory, this translates to the photon fidelity characterization of cascaded emission efficiency and decoherence time. Our work provides a framework for ultrafast spectroscopy in heterogeneous emitters, opening new avenues of extreme-scale characterization for quantum applications.
View details for DOI 10.1038/s41563-024-01855-7
View details for PubMedID 38589542
View details for PubMedCentralID 5615041
-
Millimeter-Scale Exfoliation of hBN with Tunable Flake Thickness for Scalable Encapsulation
ACS APPLIED NANO MATERIALS
2024
View details for DOI 10.1021/acsanm.4c00412
View details for Web of Science ID 001184723800001
-
Through thick and thin: how optical cavities control spin
NANOPHOTONICS
2023
View details for DOI 10.1515/nanoph-2023-0175
View details for Web of Science ID 000982262200001
-
Active Control of Plasmonic-Photonic Interactions in a Microbubble Cavity
JOURNAL OF PHYSICAL CHEMISTRY C
2022
View details for DOI 10.1021/acs.jpcc.2c05733
View details for Web of Science ID 000894524600001