Projects

We adapted component values to available parts and added a feedback capacitor to stabilize high-frequency gain. Testing covered gain, bandwidth, input impedance, output power, and distortion. The physical prototype produced amplified audio in both channels, but measured distortion was higher than predicted in simulation.

Used raster scans and wavelength-resolved measurements to identify fluorescence sites and characterize their emission. Photon-correlation measurements and a timing calibration with a PicoHarp 330 developed experience with time-correlated single-photon counting.

The paper discusses energy landscapes, update mechanisms, and convergence behavior, contrasting gradient-based optimization with stochastic sampling. This was an analytical literature-based project.

The report compares secondary- and backscattered-electron imaging, characteristic X-rays, STEM-HAADF imaging, elemental mapping, and electron diffraction. Gold nano-islands were investigated with TEM methods.

Used Gwyddion to correct and process scans, reconstruct two- and three-dimensional surfaces, and evaluate how operating conditions affect imaging quality. This was a course laboratory project, separate from my Wu Group research.

Compared time-domain signals and phase-space plots to identify period doubling, chaotic responses, and periodic windows within the chaotic regime.

My assigned contributions were Problem 4 in Project 2 and Problems 4–5 in Project 3: Burgers’ equation, linear dispersion, and nondimensionalization. The work examined evolving physical fields, power spectra, and the relative importance of equation terms.

Measured the driving voltage at wave onset across frequencies from 15 to 45 Hz. Compared the response across oils and documented measurements limited by the amplifier’s maximum output. Driving voltage was the recorded threshold measure.

Used Helmholtz coils, a gaussmeter, and optical intensity measurements to estimate the Verdet constant of an unknown material. The reported estimate was 21.36 rad/(T·m), with ambient light and equipment limitations considered as sources of error.

Calculated rise, set, and peak times, planned telescope slews, and processed roughly 250 raw images in CCDStack. Image processing was shared across the team; the final analysis organized objects chronologically and by classification.