Optics research at UWEC is mostly conducted by:
This collaboration involves Dr. Jin Huang of the UW in ANL’s research program on heavy elements photophysics and photochemistry, which is sponsored by the Office of Science in the U. S. Department of Energy. The primary objective of the ANL program, led by Dr. Guokui Liu, the principal investigator, is to provide a predictive understanding of the consequences of electronic excitations of heavy elements (rare earth and actinide ions) in crystals and glasses. Experiments that utilize laser and X-ray spectroscopic techniques are conducted at ANL to reveal electronic energy level structures and excited state dynamics of the heavy element ions in various host materials. The experimental results are analyzed and theoretically modeled based on such fundamental physical interactions as electron-electron, electron-phonon, and electron-nuclear couplings. The primary goal of the research is to establish correlation between the fundamental electronic interactions and the optical, electric and magnetic properties of materials that contain heavy element ions. Dr. Huang will be actively involved in computational analyses and modeling of the experimental results while he caries his normal duties at UW, and also participates in conducting experiments during summer time and sabbatical leave from UW.
Faculty/Student Collaboration in study Double-Slit Interference and Poynting Vector
This collaboration involves Dr. Huang and Tom Awe (Senior in Dept. of Physics and Astronomy).
When coherent light is incident upon two parallel, thin slits, the two emerging wavefronts will interfere with one another, creating an ordered pattern of high and low irradiance regions; this is the so-called double-slit interference experiment. Also, Poynting vector theory states that the irradiance of light is proportional to the amplitude of the Electric field squared. The double-slit experiment is usually used to demonstrate the superpostion of light waves, but by changing the experimental approach, we propose to use this experiment to directly show the square proportionality between the light irradiance and the amplitude of the E-field. In order to accomplish this, one must gather single-slit diffraction data by blocking one slit at a time, but due to the close proximity of the slits, the blocking device causes diffractive edge effects, thus compromising the data. Along with our primary goal it is our effort to limit these edge effects, thus creating experimental data to fully support electromagnetic theory. Also, by utilizing the engineering software LabView, in conjunction with appropriate data acquisition devices, we will automate the experiment, thus reducing several forms of error.
Other Materials of Interest
SPIE—The International Society for Optical Engineering
OFC 2003-Optical Fiber Communication