Events at Physics
Events on Thursday, October 1st, 2015
- R. G. Herb Condensed Matter Seminar
- Tunable mid-infrared photonics
- Time: 10:00 am
- Place: 5310 Chamberlin Hall
- Speaker: Mikhail Kats
- Abstract: The mid-infrared (mid-IR) spectral range (wavelengths from ~ 2 μm to ~20 μm) has recently become more important for both applications and fundamental science. However, compared to their counterparts in the visible, optical components in the mid-IR are still significantly under-developed.
We create tunable optical components for the mid-IR by incorporating materials that respond to temperature, current, or applied electric field into photonic structures such as interference coatings and optical metasurfaces. In particular, we exploited the insulator-to-metal phase transition of vanadium dioxide (VO2) to create temperature- and current-tunable modulators and thermal emitters, and used electrostatic doping in graphene to construct reconfigurable metasurfaces that operate at nanosecond time scales.
- Host: Saffman
- Cosmology Journal Club
- An Informal discussion about a broad variety of arXiv papers related to Cosmology
- Time: 12:15 pm
- Place: 5242 Chamberlin Hall
- Abstract: Please visit the following link for more details:
Please feel free to bring your lunch!
If you have questions or comments about this journal club, would like to propose a topic or volunteer to introduce a paper, please email Le Zhang (firstname.lastname@example.org)
- Host: Peter Timbie
- NPAC (Nuclear/Particle/Astro/Cosmo) Forum
- Spectral and flavor composition of the ultrahigh energy neutrinos seen at IceCube
- Time: 2:30 pm
- Place: 4274 Chamberlin Hall
- Speaker: Aaron Vincent, Institute for Particle Physics Phenomenology , Durham University
- Abstract: I will present the main elements of our independent studies of the high-energy events seen above 28TeV by IceCube, arXiv:1404.0017 and arXiv:1502.02649. I will cover the physics involved, and show the effect of modelling and assumptions on the conclusions one can reach about the flavor composition, spectrum, and background rates. I will compare our results and methodology with the official IceCube studies, and discuss future prospects.
- Host: Carlos Arguelles Delgado
- Graduate Introductory Seminar
- Quantum Computing
- Time: 4:30 pm
- Place: 5280 Chamberlin Hall
- Speaker: Coppersmith, Eriksson, Joynt, McDermott, Saffman, Vavilov, Walker, Yavuz