Session
2025 Poster
Location
Brigham Young University Engineering Building, Provo, UT
Start Date
5-5-2025 9:55 AM
Description
Coherent diffraction imaging (CDI) is a powerful technique for reconstructing phase shifts occurring in biological samples by capturing the interference between scattered light. These diffraction patterns contain spectral information, where shorter wavelengths (higher spatial frequencies) yield images with enhanced spatial resolution, improving detail and accuracy. However, higher spatial frequencies are located further from the central axis, rendering them fainter and more challenging to measure. To address this, our group developed a gyroscopic CDI system featuring a rotating platform driven by a stepper motor. This platform positions the sample between a broadband light source and a beam profiler, which are mounted on opposite sides, enabling precise rotation for enhanced data collection. This innovative system maintains normal incidence between scattered light and the detector, enabling accurate measurement of faint short-wavelength signals without compromising resolution.
Enhanced 3D Image Reconstruction Using Scattered Light Tomography
Brigham Young University Engineering Building, Provo, UT
Coherent diffraction imaging (CDI) is a powerful technique for reconstructing phase shifts occurring in biological samples by capturing the interference between scattered light. These diffraction patterns contain spectral information, where shorter wavelengths (higher spatial frequencies) yield images with enhanced spatial resolution, improving detail and accuracy. However, higher spatial frequencies are located further from the central axis, rendering them fainter and more challenging to measure. To address this, our group developed a gyroscopic CDI system featuring a rotating platform driven by a stepper motor. This platform positions the sample between a broadband light source and a beam profiler, which are mounted on opposite sides, enabling precise rotation for enhanced data collection. This innovative system maintains normal incidence between scattered light and the detector, enabling accurate measurement of faint short-wavelength signals without compromising resolution.