Department of Physics

1. Department of Physics Physics Department The University of Texas at Arlington • 21 Full Faculty, Two Full Time Lecturers • 52 Graduate Students (Ph.D. and MS) • 20 Senior Researchers and Post-Docs • 11 Full Time Technical and Clerical Staff

3. Department of Physics Degrees: • B.A., Physics • B.S., Physics • M.S., Physics • Ph.D., Physics and Applied Physics

4. Over $6 Million per year in Federally Funded Research Research Areas: • High Energy Physics • Astrophysics/Space Physics • Condensed Matter Experiment • Nano-magnetic Materials • Nano-bio Materials • Nano-bio Optics • Surface Physics • Condensed Matter Theory • Modeling of Nano-Materials • Modeling of Surfaces

5. High Energy Physics: Drs. Yu, De, Brant, White, Jackson, and Farbin CMS France Geneva Airport Swizerland ATLAS LHC @ CERN Aerial View UTA Physics Department

6. Chicago CDF p DØ Tevatron p FermilabTevatron and LHC at CERN • World’s Highest Energy p-p collider • 27km circumference, 100m underground • Design Ecm=14 TeV (=44x10-7J/p 362M Joules on the area smaller than 10-6m2) • Equivalent to the kinetic energy of a B727 (80tons) at the speed 193mi/hr 312km/hr • ~300M times the energy density at the ground 0 of the Hiroshima atom bomb • First 7TeV collisions on 3/30/10  The highest energy humans ever achieved!! • Just completed a successful run this year! • World’s Highest Energy proton-anti-proton collider • 4km circumference • Ecm=1.96 TeV (=6.3x10-7J/p 13M Joules on the area smaller than 10-4m2) • Equivalent to the kinetic energy of a 20t truck at the speed 81mi/hr 130km/hr • ~100,000 times the energy density at the ground 0 of the Hiroshima atom bomb • Was shut down at 2pm CDT, Sept. 30, 2011 • Other parts of the complex is still running!! UTA Physics Department

7. Recent Excitement: Hint of the Higgs These red lines show how the LHC's Atlas experiment registered the arrival of four particles called muons. They could have been the byproducts of a short-lived Higgs boson--or they could have been more humdrum events. CERN's LHC particle accelerator will continue smashing protons into each other to spot the statistical significance that means the Higgs really has been found. (Credit: CERN) UTA Physics Department

8. Astrophysics Search for extra-solar planets – Musielak and Cuntz X-ray telescope image of supernova - Park

9. X-ray Astronomy Supernova Remnants Study of Supernova Remnants ~1-10 M deg hot gas: Observations using X-ray space telescopes (e.g., Chandra). Studies of Supernova (SN) nucleosynthesis Chemical composition and Density structure of interstellar medium Cosmic-ray acceleration by SN shock Nature of neutron stars Neutron star Size ~17 pc ~ 57 light year Distance ~ 6 kpc ~ 20000 light year Size ~0.3 pc ~ 1 light year Assist. Prof. Sangwook Park UTA Physics Department

10. Space Physics Ionosphere/ Thermosphere Magnetosphere Solar Wind Professor Ramon Lopez Ionosphere/Thermosphere Processes Assist. Prof. Yue Deng

11. Condensed Matter Experiment • Internationally recognized in nano-magnetism, positron physics, structure of actinides, fullerenes, photonic materials. • Extensive funding, including multi-million dollar, multi-year DARPA and (2005 ) MURI grant awards for nano-structured magnetic materials. Prof. Koymen Prof. Sharma Prof. Weiss Prof. Sharma Assist. Prof. Mohanty Prof. Liu Assoc. Prof. Chen

12. The Smallest Permanent Magnets – Drs Liu & Koymen We are able to produce world smallest permanent magnets down to 3 nm with large magnetic force! Ferromagnetic nanoparticles (single domain and single crystal) have coercivity up to 3 Tesla! UTA Physics Department

13. Diamond NPs grown by chemical vapor deposition Nanodiamond and electro-optic materials Looking at diamond nanoparticles (size ~ 10-100 nm) with advanced tools of nanotechnology Professor Suresh C Sharma Using lasers to synthesize electro-optic materials with sub-micron scale periodic variations in refractive index used for advanced optical devices

14. Nanotechnology For Health Care and Homeland Security – Dr. Chen UTA Physics Department

15. Advanced Biophotonics • Therapeutic control • - Photothermaltherapy(gene delivery, damage cancer) • Optogenetics(vision restoration, pain inhibition) • DNA damage-repair (aging, new pathways ) • Nerve injury-repair (screening new molecules for regeneration) • Manipulation and imaging • Optical tweezers (disease diagnosis, force sensing) • Laser spanner (optofluidics, neuronal guidance) • Optical stretcher (cellular biomechanics) • Laser scissors (nano-surgery,) • Digital holographic microscopy (refractive index measurement) UTA Physics Department

16. New 2-meter t-o-f spectrometer

17. (b) (a) Scattering state E1 “Secondary Electron” Metal Vacuum Virtual photon Incident positrons φ+ Vacuum Level Vacuum Level E2 Surface state φ- Direct trapping in the surface state potential well Energy available to an electron at fermi level Valence Band E AMQS = E1 - E2 - φ- Surface potential Figure1.Schematics of AMQS processa,b, (a)The slow positrons may be directly trapped in the surface state resulting in the release of an electron with the residual energy (b) the energy band diagram showing the Auger like transition where the incident positron drops down to fill an empty state while simultaneously kicking out a secondary electron.

18. Condensed Matter Theory Positron trapped at Si 7x7 surface Modeled Nano-structures Theory prediction of new double walled SiC nanostructures

19. Materials discovery “by design” Application of Electronic Structure Theory to Materials in Renewable Energy Complex quantum mechanical calculations to understand the Physics of materials. • Research Topics: • Materials discovery for Renewable Energy technology. • Nano-structures for future electronics and nano-technology. • Physics for flexible electronics, which can be folded or deformed like paper. Assist. Prof. Huda PV-cell Nano-structures Flexible nano-structures. Research are done in collaboration of National Renewable Energy Laboratory.

20. The People of the UTA Physics Department Welcome You!