PDF Link We present spectroscopic diffraction phase microscopy (sDPM) as a method capable of measuring quantitative phase images at multiple wavelengths. sDPM uses a spatial light modulator at the Fourier plane of a lens to select desired wavelengths from the white light illumination of a grating. The quantitative phase information at different wavelengths allows us […]Read more
Archive: July, 2012
Prof. Popescu was invited to testify in the Congressional Hearing regarding “Innovation Corps: A Review of a New National Science Foundation Program to Leverage Research Investments”. The debate in the House of Representatives Committee on Science, Space, and Technology, was chaired by Congressman Brooks (R-Alabama) and aimed to assess the value of I-Corps to the […]Read more
M. Mir, S. D. Babacan, M. Bednarz, M. N. Do, I. Golding, and G. Popescu, Visualizing Escherichia coli Sub-Cellular Structure Using Sparse Deconvolution Spatial Light Interference Tomography, PLoS ONE, 7 (6), e38916 (2012).
PDF Link Studying the 3D sub-cellular structure of living cells is essential to our understanding of biological function. However, tomographic imaging of live cells is challenging mainly because they are transparent, i.e., weakly scattering structures. Therefore, this type of imaging has been implemented largely using fluorescence techniques. While confocal fluorescence imaging is a common approach […]Read more