In a recent study, Henry Hammer and Ravitej Uppu from the University of Iowa discovered that an alternative fiber geometry — rectangular rather than the conventional circular cross-section — can significantly enhance information transfer rates. Their findings could improve not only telecommunications but also the emerging field of photonic quantum computing.

This Daily Iowan story tells how a team of researchers led by Thomas Folland, a professor of Physics and Astronomy at the University of Iowa created a new infrared cryo microscope. The homemade microscope was created to enable the recent study aimed at deepening the understanding of material behavior, particularly semiconductors at very low temperatures.

Eight undergraduate students in the Department of Physics and Astronomy were recently awarded scholarships. They include: Emerson Peters, Avi Kaufman, Eric Biedke, Mary Haag, Phillipe Jay, Aditya Venkatesh, and Zachary Piker.

Physics and Astronomy graduate students Rui Huang, Hossein Zandipour, Hassan Bukhari, Yuanzheng Wen, Jodie McLennan, Eudes Gomes da Silva were recently awarded scholarships.

The infrared cryo-microscope, designed by a team led by Thomas Folland, assistant professor in the Department of Physics and Astronomy, uses off-the shelf components to make precise measurements of different materials’ properties.

Dustin Swarm, a postdoctoral scholar in the Department of Physics and Astronomy, is part of the 2025 Dare to Discover banner campaign, showcasing 80 undergraduate, graduate student, and postdoctoral scholars engaged in promising research, scholarship, and creative activities.

In this Scientific American article, Associate Professor Allison Jaynes discusses peculiar bursts of energy called chorus waves detected in deep space far from our planet. These waves could pose problems for long-distance space travel.

In this article from the Associated Press, Associate Professor Allison Jaynes comments on chorus waves, which ripple at the same frequency as human hearing. When converted to audio signals, their sharp notes mimic high-pitched bird calls. Researchers have captured such sounds in space before, but now they have sensed the chirping waves from much farther away: over 62,000 miles (100,000 kilometers) from Earth, where they’ve never been measured before.

Iowans who bundle up to brave the evening chill will be able to see a relatively rare event in the January night sky, what some are calling the Parade of Planets. Allison Jaynes, a physics and astronomy professor at the University of Iowa, says Venus, Mars, Jupiter and Saturn are all shifting into near-alignment, and two more planets — Uranus and Neptune — will join the celestial conga line later this month.

Jun Wang, University of Iowa’s Lichtenberger Family Chair in Chemical and Biochemical Engineering, was awarded the 2024 Joanne Simpson Medal for mid-career scientists in recognition of significant contributions to Earth and space science. Wang has a secondary appointment in the Department of Physics and Astronomy.