Fluorescence lifetime is a unique property of atoms and molecules which can be used in many applications such as medical imaging, and also teaches us more about light-matter interactions in different media. When energy in the form of a photon hits a particle, the energy is absorbed and an electron on the particle enters an […]
B36: Comparing Ratiometric and Phasor Analysis Approaches for Sensing Calcium Ion Concentration Using Indo-1 Dye
Metabolic ions like calcium are important signaling ions that are involved in many cellular functions such as muscle control, signal transmissions, and gene transcription. Calcium ion concentrations are implicated in medical conditions like hypercalcemia, which can lead to bone and kidney disease. Intracellular ion levels can be sensed using fluorescence indicators. This means we can […]
B37: Neurodivergent Students and College Professors: What it is and what can be…
Neurodivergent students sometimes have a tough time when they get to college. Nationally, more than half of neurodivergent students drop out of college. In this study, we interviewed two experts at Miami University, one who works with Student Disability Services and one who teaches classes on disabilities. We found that while most college professors are […]
C32: Four Possibilities, yet Two Outcomes for an Atomic System
The Hong-Ou-Mandel Effect was originally observed in 1987 by C.K. Hong, Z.Y. Ou, and L. Mandel. Their experiments found that only two of the four classically predicted outcomes were observed when two indistinguishable photons were fired at a 50 : 50 beam splitter within a very small (on the order of picoseconds) time interval. Our […]
C33: Distinguishing the effect of ethanol and cyanide on cellular respiration using UV-excited autofluorescence spectroscopy
NADH is an optical metabolic indicator– a molecule we can use to monitor metabolism– because it is naturally occurring, it is involved in energy metabolism, and it fluoresces. NADH fluorescence depends on which protein to which it is bound. UV-excited autofluorescence spectroscopy is a technique used to measure the emission spectrum of excited biological substances. […]
C36: Robust Storage of Optical Information in Atomic Vapor for Creating a Quantum Memory
Our project is about converting Gaussian beams into Laguerre-Gaussian (LG) and Bessel beams in order to explore robust storage of optical information in atomic vapor. For this, we require the use of a Spiral Phase Plate (SPP) and an Axicon, respectively, to create the aforementioned beams. This entails working with advanced optics and acousto-optic modulators […]
C37: Brownian ratchets: Nano-devices that make randomly diffusing atoms undergo directed motion without applying any net force
Brownian ratchets are nanodevices capable of extracting useful work from environmental noise to create directed motion of particles in the absence of a net force. Research in this area is inspired by biomolecular motors that power the processes of life by utilizing random fluctuations in their environment. These naturally occurring nanodevices are several orders of […]
C38: Compact Imaging of a Laser Beam using a Polarimeter
Author(s): Krist Ha, Engineering Physics, Sawyer Wozniak, Physics Advisor(s): Edward Samson, Department of Physics
BIV-02: Imposter Syndrome in Undergraduate STEM Students
Presenter(s): Aliya Myers, Biology Major Advisor(s): Jennifer Blue, Department of Physics
BI-01: Exploiting the magnetocaloric properties of advanced materials in magnetic refrigeration and hyperthermia cancer treatment
The magnetocaloric effect refers to the heating or cooling of a magnetic material when placed in an external magnetic field. Recent studies showed that this property can be exploited in numerous applications including magnetic refrigeration and hyperthermia cancer treatment. While magnetic refrigeration technology is more energy efficient and environmentally friendly than the gas-based refrigeration systems, […]