Calendar, Spring 2005



Spring 2005


Week 1 - January 17 - 21

Monday, January 17

First day of classes for Spring Semester.

Friday, January 21, 12PM - 1PM

Physics Lunch. (Not the usual location, but close!) Bring your lunch tray to Lower Dempsey to join the department for stimulating conversation.


Week 2 - January 24 - 28

Friday, January 28, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, January 28, 3:10PM - 4:00PM

Physics Colloquium, Franklin Miller, Jr. Lecture Hall (RBH 109). Nicholas Ferraro, '00. "TBA" Reception to follow in Hayes Hall Lobby.


Week 3 - January 31 - February 4

Friday, February 4, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, February 4, 3:10 - 4:00PM

Physics Tenure Track Search Candidate Talk Dr. Craig Siders, '88, Center for Research and Education in Optics and Lasers, University of Central Florida. "The Fast, the Small, and the Extreme:  High-Intensity Femtosecond Lasers, Ultrafast X-Ray Diffraction, and the Study of Extreme States of Matter" Abstract: High-intensity femtosecond lasers can produce extreme states of matter which are novel (e.g. ultrafast non-thermal melting) or difficult to access in the laboratory (such as conditions comparable to planetary or even stellar interiors). Ultrafast optical-pump, x-ray diffraction probe experiments have proven to be a valuable new tool for accessing these states and will provide new ways to study many other transient processes in physics, chemistry, and biology, including direct observation of the atomic motion by which many solid-state processes and chemical and biochemical reactions take place.  This presentation will discuss both the femtosecond laser technology behind this and present results from several demonstrative experiments performed using sub-picosecond Cu-Ka (8-keV or 1.54 angstrom) x-ray diffraction in femtosecond-laser irradiated semiconductors.  Experiments to be discussed have directly measured ultrafast non-thermal melting within Ge-111 films (Science 286, 1340 (1999)), harmonic and anharmonic coherent acoustic transport in layered Ge-111/Si-111 (PRL 85, 586 (2000)) and bulk GaAs-111 samples (Nature 398, 310 (1999)), and a solid-to-solid phase transition in vanadium dioxide (PRL 87, 237404 (2001)).


Week 4 - February 7 - 11

Friday, February 11, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Upper Dempsey (not the usual location, but close!) to join the department for stimulating conversation.

Friday, February 11, 3:10 - 4:00PM

Physics Tenure Track Search Candidate Talk -- Postpoined

Week 5 - February 14 - 18 

Friday, February 18, 12PM - 1PM

Physics Lunch. (Not the usual location, but close!) Bring your lunch tray to Lower Dempsey to join the department for stimulating conversation.

Friday, February 18, 3:10PM - 4:00PM

Physics Tenure Track Search Candidate Talk  -- Dr. Jan Kmetko,"Identifying Physico-Chemical Mechanisms of X-ray Radiation Damage in Biological Crystals: Can We Protect Them?"   Abstract:  Solving the sequence of human genome has been called one of history's greatest scientific achievements.  The information contained in the genetic code alone, however, does not tell us what role the genes play.  Genes code for proteins, and it is the proteins that participate in reactions leading to various metabolic pathways.  So the next feat is to solve the structure and understand the function of all proteins.  One of the bottlenecks hindering the protein structure determination by x-ray diffraction is the sensitivity of biological molecules to x-ray radiation.  I will present measurements that assess the damage rates, and discuss the results within the context of various physical and chemical processes in biological crystals during the x-ray exposure.  Reception to follow in Hayes Hall lobby.


Week 6 - February 21 - 25

Friday, February 25, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, February 25, 3:10PM - 4PM

Physics Colloquium, Franklin Miller, Jr. Lecture Hall (RBH 109). Dr. James M. Turner, Assistant Deputy Adminstrator for Nuclear Risk Reduction, US Department of Energy. "U.S. Department of Energy Nuclear Non-Profliferation Programs"  Abstract:  The National Nuclear Security Administration, a semiautonomous part of the U.S. Department of Energy, conducts non-proliferation programs throughout the world.  While the work addresses Weapons of Mass Destruction (WMD), the emphasis is on nuclear concerns.  Many of these programs deal with either eliminating, better securing, or protecting the Homeland from materials which could be used in a nuclear weapon or a "dirty bomb".  Other Programs focus on developing and enforcing means to reduce the trafficking of nuclear weapons grade material and assisting former nuclear weapons scientists and engineers in finding civilian oriented work.  There is also a significant effort to develop technology to detect illicit WMD, (particularly nuclear) activity.  Many of these Programs are complementary to work done by the State and Defense Departments.  Reception to follow in Hayes Hall Lobby.


Week 7 - February 28 - March 4

Friday, March 4, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department in celebrating the beginning of Spring Break!

Spring Break! March 7 - 18


Week 8 - March 21 - 25

Friday, March 25, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation. We will regale each other with Spring Break adventure stories.

Friday, March 25, 3:10PM - 4PM

Friday Afternoon Physics! Join the department in just having some fun with science. Activity TBA.


Week 9 - March 28 - April 1

Friday, April 1, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, April 1, 3:10PM

Physics Senior Exercise Talk. Megan Harvey, '05, Kenyon College "TBA" Abstract: TBA Reception to follow in Hayes Hall Lobby

Week 10 - April 4 - 8

Friday, April 8, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, April 8, 3:10 - 4:00PM

Physics Senior Exercise Talk. Bethany Anderson, '05, Kenyon College "TBA" Abstract: TBA Reception to follow in Hayes Hall Lobby

Week 11 - April 11 - 15

Tuesday, April 12

Honor's Day!

Friday, April 15, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, April 15, 3:10PM - 4:00PM

Physics Colloquium, Franklin Miller, Jr. Lecture Hall (RBH 109). Professor Sergio Ulloa, Department of Physics and Astronomy, Ohio University.   "Einstein’s Gyrocompass, the Spin of the Electron and the Head of the Pin”  Abstract:  Einstein was not only a brilliant scientist, but also a clever inventor.  This is the "World Year of Physics," organized to celebrate the centennial of Einstein's miraculous year in 1905.  We celebrate his physical insights in a number of fields (both abstract and practical!), and discuss how he provides us all with inspiration to dwell into the quantum physics realm in search of possibly the next practical advances in electronics.  Reception to follow in Hayes Hall Lobby.

Week 12 - April 18 - 22

Friday, April 22, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, April 22, 3:10-4:00PM

Physics Colloquium, Franklin Miller, Jr. Lecture Hall (RBH 109). Dr. Wai Kwong Kwok, '79, Group leader, Superconductivity & Magnetism Group, Materials Science Division, Argonne National Laboratory "Tailored Vortex Behavior in Bulk & Mesoscopic Superconductors”
 Abstract:  High-temperature superconducting materials promise great energy savings if they can be used to transport current without heat loss over large distances. These materials are categorized as type II superconductors. When a type II superconductor is subjected to a magnetic field, "vortices" -- magnetic flux tubes, which carry a single quantum of magnetic flux -- can appear. In high temperature superconductors, these vortices appear over a large portion of the magnetic field/temperature phase diagram. In relatively clean superconductors, the interaction between the vortices leads to the formation of a regular triangular array, much like an atomic lattice. In high temperature superconductors, this magnetic lattice structure can "melt" at high temperatures into a liquid of magnetic field lines. The lattice can also be destroyed by adding defects to the system by particle irradiation. Vortices tend to be localized or 'pinned' by the defect sites, destroying the lattice until a glassy state replaces the lattice phase. The glass phase can also "melt" at high temperatures into a liquid state via a continuous transition. Hence, vortices provide an excellent platform to study phase transitions in general. I will present our work on the manipulation of vortex structure through thermal and quenched disorder and highlight the variety of rich vortex phases found in high temperature superconductors. In addition, I will discuss the creation of novel vortex phase transitions in mesoscopic superconductors induced by confinement effects.   Reception to follow in Hayes Hall Lobby.

Week 13 - April 25 - 29

Friday, April 29, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, April 29, 3:10PM - 4PM

Friday Afternoon Physics! Join the department in just having some fun with science. Activity TBA.

Week 14 - May 2 - 6

Friday, May 6

Last day of classes for Spring Semester!

Friday, May 6, 12PM - 1PM

Physics Lunch. Bring your lunch tray to Dempsey Lounge (the room behind the partition at the south end of Lower Dempsey Dining Room) to join the department for stimulating conversation.

Friday, May 6, 3:10-4:00PM

Physics Colloquium, Franklin Miller, Jr. Lecture Hall (RBH 109). Thomas B. Greenslade, Jr., Kenyon College.  "The Box of Delights"   Abstract:  Physics demonstrations, both old and new, for people of all ages.   Reception to follow in Hayes Hall Lobby.


   Contact:  Connie Miller, Dept. of Physics.   

Created by Bethany Anderson, Kenyon College 2005
 October 25, 2003
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