Optics
Andersen, Boggess, Flatté, Goree, Kleiber, Prineas, Skiff, Smirl, Wohlgenannt
Optics is an applied physics area with applications in
industry, scientific instrumentation, medicine, astronomy, and
future technologies such as quantum computing. The University
of Iowa is the home of the Optical Science and Technology
Center (OSTC), which is an interdisciplinary center for optics
researchers in physics, chemistry, engineering, and other
fields. The Department of Physics and Astronomy has
experimenters who develop and test new optical devices and
materials, as well as experimenters in the fields of plasma,
atomic, and molecular physics, who develop scientific
instruments based on lasers and optics. Our experimenters have
fifteen labs on campus, and we have a theorist. We offer
graduate-level courses in modern optics.
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We have greatly increased the number of optics faculty and
state-of-the-art laboratories in our department. Students
interested in optics enjoy a wide range of research
possibilities, within the OSTC and with other faculty in the
Department as well. With their strong financial support from
numerous funding agencies, our faculty members offer students
excellent research opportunities. Job placement opportunities
are particularly strong for PhD graduates with experience in
any of the kinds of optics that our students use.
David Andersen, Theoretical and experimental nonlinear
optics
- Parametric solitons, nonlinear optical crossbar switch, passive and adaptive nonlinear optical equalizer, 4-pi confocal nonlinear optical microscopy
- Applications include long-haul telecommunications systems, embedded wireless communications
- Professor with appointments in the departments of Electrical and Computer Engineering and in Physics and Astronomy
- Facilities include 1100 sq. ft. lab, with a 100 femtosec Ti:Sapphire laser system and other sources for nonlinear optics
- Students also interact with theoretical wireless group from Electrical Engineering, medical group from Optical Science and Technology Center
- Application of nonlinear optics to the design and development of ultrafast optical sources and time-resolved experiments
- Major equipment includes several ultrafast lasers with frequency conversion systems, all located in 2000 sq. ft. of laboratory space
Michael Flatté, Theory of semiconductor lasers
- Laser materials are theoretically designed and then tested by experimenters at Iowa
- Research applications include medicine and environmental monitoring
- Students also interact with other group members, including a postdocs and other students, and with experimenters in Electrical and Computer Engineering and Chemistry
- Students develop skills including analytical and numerical techniques and programming C++
- Placement opportunities for graduates students include industry participants in our research
John Goree, Experiments with optics and lasers
- Primary research areas are plasma and condensed matter; students design and use optical systems as part of their research
- Optical imaging, image analysis, laser scattering, laser stimulation of lattices, spectroscopic imaging, laser diagnostics of plasmas
- Experiments are performed in our labs. Data from experiments on the International Space Station (ISS) are also analyzed.
- Two labs with lasers (argon, YAG, dye, diode, HeNe), spectrometers, video imaging, plasma chambers
- Students develop skills including design, construction, and operation of: optical, laser, vacuum, and electronic systems; programming in various languages; image analysis
- Previous assistants found employment in the semiconductor industry and in academia as postdocs and professor
- Primary research area is atmospheric & environmental physics; students use optics and lasers in their projects
- Development of laser-based light scattering
- Two labs; optical instruments include tunable Nd:YAG-pumped lasers
John Prineas, Experimental optoelectronics and
ultrafast optics
- Characterization of infrared (2-30 ums) optoelectronic devices, including high power surface and edge emitting light emitting diodes, high sensitivity photodiode detectors, and laser diodes
- Biomolecular optical microsensors
- Nonlinear optical properties of and ultrafast carrier dynamics in semiconductor heterostructures
- Two labs, including an ultrafast spectroscopy lab, and a cleanroom with two molecular-beam epitaxy (MBE) machines equipped for III-V semiconductor growth
Frederick Skiff, Experiments with lasers and spectroscopy
- Optical instrumentation is developed and used as part of an experimental plasma physics program
- Low-light-level laser scattering, cw laser systems for spectroscopy, nonlinear optics of plasma waves
- Experimental facilities include: 3-meter linear magnetized plasma device for waves and spectroscopy, single-frequency scanning lasers for high-resolution laser spectroscopy
- Students also interact with group members, and they interact with other theoretical and experimental faculty
- Students develop skills including designing and building apparatus, electronics, computation
Arthur Smirl, Experimental ultrafast nonlinear optics
- Topics include laser physics and propagation effects in semiconductors
- Optical measurement methods include characterizing the optical field on a femtosecond time scale, spectral interferometric techniques, ellipsometric measurements of polarization
- Five laboratories (5,000 sq. ft.) containing with lasers and associated measurement equipment give students access to femtosecond pulses at a broad range of frequencies
Markus Wohlgenannt, Experimental spectroscopy of organic
semiconductors
- Topics include light absorption, reflection and emission, continuous wave photoinduced (non-linear) absorption
- The influence of electric and magnetic fields on optical properties, spectroscopy of superconducting state in two-dimensional electron gas
- Facilities include a spectroscopy facility using continuous wave laser, light-emitting diode fabrication, electromagnet
- Students participate in collaborations in semiconducting organics, chemistry and electrical engineering departments
- Placement opportunities gained from learning include semiconductor or fiber optics industry, government labs, and academia