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Kevin D. Welsher

Robert R. & Katherine B. Penn Associate Professor
Chemistry
Box 90348, Durham, NC 27708
2213 French Science Center, Durham, NC 27705

Scholarly Works - Conferences


Using COBWEBS for 3D active-feedback tracking of freely diffusing particles in tricky environments

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2023 Active-feedback 3D single-particle tracking in complex environments is limited to bright slow-moving subjects. Extending this technique to include complex background environments requires the development of particle localization strategies that can account ... Full text Cite

Point-scan volumetric imaging rate increased by an optimized linear sparse sampling pattern

Conference Frontiers in Optics Proceedings Frontiers in Optics Laser Science Aps Dls · September 8, 2019 Conventional point-scan volumetric imaging requires long acquisition times. Constant focal scanning during a 2D frame scan creates sparse 3D patterns enabling up to 4x speed increase through interpolation as implemented in a two-photon microscope. ... Full text Cite

Three-dimensional target-locking microscopy

Conference Optics Infobase Conference Papers · January 1, 2013 Three-dimensional target-locking microscopy (3D-TLM) is developed to observe the dynamics of fast moving nanoscale particles with high temporal (10 μsec) and spatial (10 nm) definitions while simultaneously imaging the 3D biological environment. © OSA 2013 ... Full text Cite