[Illinois] ECE 460 Optical Imaging Fall 2011 Lecture 2: Math Toolbox I

26 Aug 2011 | Online Presentations | Contributor(s): Gabriel Popescu

Scalar fields, geometrical optics, wave optics, Gaussian beams, Fourier optics, spatial and temporal coherence, microscopy, interference chromatic and geometric aberrations, Jones matrices, waveplates, electromagnetic fields, and electro-optic and acousto-optic effects. Laboratory covers numerical …

[Illinois] ECE 460 Optical Imaging Fall 2011 Lecture 1: Introduction

26 Aug 2011 | Online Presentations | Contributor(s): Gabriel Popescu

Scalar fields, geometrical optics, wave optics, Gaussian beams, Fourier optics, spatial and temporal coherence, microscopy, interference chromatic and geometric aberrations, Jones matrices, waveplates, electromagnetic fields, and electro-optic and acousto-optic effects. Laboratory covers numerical …

2010 Nano-Biophotonics Summer School @ UIUC Lecture 36 - Nanoscale fluctuations in live cells

27 Jan 2011 | Online Presentations | Contributor(s): Gabriel Popescu

2010 Nano-Biophotonics Summer School @ UIUC Lecture 2 - 2D/3D Fourier transforms & Electromagnetic fields/ Lorentz-Drude model

25 Sep 2010 | Online Presentations | Contributor(s): Gabriel Popescu

So far, we have discussed Fourier transformations involving one-dimensional functions. Of course, in studying imaging, the concept must be generalized to 2D and 3D functions. For example, diffraction and 2D image formation are treated efficiently via 2D Fourier transforms, while light scattering …

2010 Nano-Biophotonics Summer School @ UIUC Lecture 4 - Gaussian beam propagation - Elastic light scattering - Dynamic light scattering

25 Sep 2010 | Online Presentations | Contributor(s): Gabriel Popescu

Often, experiments involve light beams. A light beam can be defined as a distribution of field that fulfills the approximation in Eq. 20, i.e. is characterized by a dominant wave vector component, k(z) >> k(x) , k(y) . A beam is, therefore, the spatial equivalent of quasimonochromatic light, …

Illinois iOptics Lecture 3: A tissue scattering-phase theorem

17 May 2010 | Online Presentations | Contributor(s): Gabriel Popescu

We have derived two mathematical relationships between quantitative phase images of thin tissue slices and the scattering parameters of the bulk, i.e. scattering mean free path, ls, and anisotropy factor, g. The ls turns out to be inversely proportional to the mean-squared phase shift and g is …

Illinois 2009 nano-biophotonics Summer School, Lecture 3: Elastic Light Scattering

20 Oct 2009 | Online Presentations | Contributor(s): Gabriel Popescu

Elastic Light Scattering Topics: Light Scattering by Inhomogeneous Media Scattering on Single Particles Scattering on Simple Particles Rayleigh Scattering The Born Approximation The Spatial Correlation Function Single Particle Under Born approximation Ensemble of …