Effects of spatial coherence in diffraction phase microscopy
PDF Link Quantitative phase imaging systems using white light illumination can exhibit lower noise figures than laser-based systems. However, they...
Highly sensitive quantitative imaging for monitoring single cancer cell growth kinetics and drug response
PDF Link The detection and treatment of cancer has advanced significantly in the past several decades, with important improvements in...
Nanoscale topography and spatial light modulator characterization using wide-field quantitative phase imaging
PDF Link We demonstrate an optical technique for large field of view quantitative phase imaging of reflective samples. It relies...
T. Kim*, R. Zhou*, M. Mir, S. D. Babacan, P. S. Carney, L. L. Goddard and G. Popescu, White-light diffraction tomography of unlabelled live cells, Nature Photonics (2014)
PDF Link (Supplementary Information) We present a technique called white-light diffraction tomography (WDT) for imaging microscopic transparent objects such as live...
G. Popescu, K. Park*, M. Mir* and R. Bashir, New Technologies for Measuring Single Cell Mass, Lab. Chip, 14, 646-652 (2014)
PDF Link Characterizing the physical properties of single cells is of great interest for unraveling the heterogeneity in a cell...
V. Crecea, B. W. Graf, T. Kim, G. Popescu and S. A. Boppart, High Resolution Phase-Sensitive Magnetomotive Optical Coherence Microscopy for Tracking Magnetic Microbeads and Cellular Mechanics, IEEE JSTQE, PP (99), 1 (2013)
PDF Link We present a real-time multimodal near-infrared imaging technology that tracks externally-induced axial motion of magnetic microbeads in single...
T. Kim, R. Zhu, T. Nguyen, R. Zhou, C. Edwards, L. Goddard and G. Popescu, Deterministic signal associated with a random field, Opt.Exp., 21(18), 20806-20820 (2013)
PDF Link Stochastic fields do not generally possess a Fourier transform. This makes the second-order statistics calculation very difficult, as...
R. Zhou, C. Edwards, A. Arbabi, G. Popescu and L. Goddard, Detecting 20 nm wide defects in large area nanopatterns using optical interferometric microscopy, Nano Letters 13 (8), 3716-3721 (2013).
PDF Link Due to the diffraction limited resolution and the presence of speckle noise, visible laser light is generally thought...
T. Kim, S. Sridharan, and G. Popescu, Gradient field microscopy of unstained specimens: reply to comment, Opt. Exp. 21 (16), 19188 (2013).
PDF Link We reply to the comment written by Ferrari and Ayubi on our recent paper, Kim et al. [Opt....
C. Edwards, et al., Digital projection photochemical etching defines gray-scale features, Opt. Exp., 21(11), pp.13547-13554 (2013)
PDF Link We demonstrate a maskless photochemical etching method that is capable of performing one-step etching of multi-level structures. This...