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UID:1740494647337@thor.lawrence.edu
CATEGORIES:Other
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SUMMARY:Senior Experience Seminar Series in Physics - 
 2025
CONTACT;ALTREP="mailto:matthew.r.stoneking@lawrence.edu":
 Matthew Stoneking\, matthew.r.stoneking@lawrence.edu
DESCRIPTION:
 Dimitris Christou \n
 Fields and Beyond: Enhancing Learning in Introductory 
 Physics\n
 What if there were better ways to make sense of 
 physics? For many students, physics is intimidating - 
 bringing stress and uncertainty as they struggle 
 with missing foundational building blocks and 
 real-world connections. In my research, I explored 
 general strategies to improve physics education 
 and developed a learning module that leverages 
 fields - an intuitive framework that ties together 
 everything from gravity to electromagnetism. By 
 emphasizing fields in introductory physics, we 
 can make concepts more accessible and help students 
 build a stronger, more connected understanding 
 of the physical world.\n
 \n
 Junming Tai \n
 Optical Frequency Conversion in Hollow Core Optical 
 Fibers \n
 I demonstrate a tunable ultrafast ultraviolet (UV) 
 laser source (150-400 nm) using nonlinear frequency 
 conversion in gas-filled hollow-core fibers. Driven 
 by a 1 kHz Ti:sapphire laser (800 nm, 45 fs), 
 soliton self-compression and dispersive wave radiation 
 enable broad UV tunability controlled via gas 
 pressure adjustments. SD-FROG diagnostics confirm 
 sub-10 fs pulse durations, surpassing conventional 
 UV sources in efficiency (7-9%) and spectral flexibility. 
 Numerical simulations align with experimental 
 results, validating the phase-matching conditions. 
 This compact, fiber-based approach advances ultrafast 
 spectroscopy, nonlinear optics, and high-resolution 
 imaging.\n
 \n
 Rose Williams \n
 Living Life in the Danger Zone: Planetary Habitability 
 in Close Binary Star Systems \n
 In this talk, I discuss the theoretical habitability 
 of binary systems containing a main sequence and 
 a white dwarf star. I utilize the three-body problem 
 to verify the possibility of stable orbits. I 
 then use established relationships for liquid 
 surface water and for stellar mass and luminosity 
 to derive the habitable zones in such systems 
 and compare them with the tidal force limit known 
 as the Roche limit. I end by highlighting potential 
 avenues for further research.\n\n

LOCATION:Youngchild 121
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