Optics

The Fresnel diffraction integral is a fractional Fourier transform
Light propagation can be viewed as a process of continual fractional Fourier transformation. As a beam advances, its amplitude distribution evolves through fractional transforms of increasing order.
Aaron J. Lemmer
Oct 26, 2021 1 min read Optics
PDF
The Fresnel diffraction integral is a fractional Fourier transform
Adaptive extended Kalman filter for online estimation of deformable mirror model parameters
A short original research project for Rob Stengel’s graduate course on Optimal Control and Estimation addressing a high-contrast coronagraphy problem.
PDF Code Follow
Adaptive extended Kalman filter for online estimation of deformable mirror model parameters
Frequency-domain metrology
Fourier Fringe Analysis (FFA) MATLAB software for a Fizeau interferometer.
Follow
Frequency-domain metrology
Construction of a solid-state pulsed laser with Q-switching and intracavity frequency doubling
My undergraduate senior seminar project. Also the story of my first laboratory result that got away.
PDF Follow
Construction of a solid-state pulsed laser with Q-switching and intracavity frequency doubling
Construction of multi-beam optical tweezers and studies of polarization-dependent interactions between optically trapped particles
A summer REU project at Michigan State University investigating polarization-dependent interactions and self-organizing dynamic behavior of optically trapped microscopic particles in a colloidal suspension.
PDF Follow
Construction of multi-beam optical tweezers and studies of polarization-dependent interactions between optically trapped particles