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 […]
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 […]
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
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, […]
CSIV-04: 2D Ratcheting of Cold Atoms
Brownian motion was originally discovered as a biological phenomenon, when botanist Robert Brown observed rapid oscillatory motions of pollen grains in water under a microscope. This phenomenon was originally thought only to be present in living organisms, but further research showed that Brownian motion was observed in all physical systems, from particles of smoke to […]
B24: The effect of acid treatment on the magnetic and magnetocaloric properties of Al-rich Al0.85+xSi0.15Fe2B2
The magnetocaloric effect (MCE), or the tendency of some materials to change temperature upon exposure to an external magnetic field, is the cornerstone of many eco-friendly technologies such as magnetic refrigeration. The compound AlFe2B2 is known to exhibit a large MCE at room temperature, and previous studies have shown that varying the stoichiometry, synthesis method, […]
A32: Sending Secure Information Using Quantum Cryptography
My general research area is the field of quantum computing (QC) and quantum information processing (QIP). QC & QIP primarily uses the laws of quantum mechanics to store, manipulate and transfer information. The question that I am trying to answer in this poster is whether or not there is a way to send information securely […]
C48: Time-resolved high-resolution spectroscopy: Lifetime measurements of 61Σg+ electronic state of Na2 using time correlated single photon counting
In this work we present progress towards the development of a map of the lifetimes of rovibrational states of the 6_1\Sigma^+_g state of diatomic sodium molecules. This research in chemical physics is focused on improving our understanding of fundamental aspects of matter. This particular electronic state is of interest to us as it possesses a […]