Category: AMO

Beating the diffraction limit in diamonds

by Daniel Heimsoth Resolving very small objects that are close together is a frequent goal of scientists, making the microscope a crucial tool for research in many different fields from biology to materials science. The resolution of even the best modern confocal microscopes — a common optical microscope popular in biology, medicine, and crystallography — …

New technique reveals changing shapes of magnetic noise in space and time

This article was originally published by Princeton Engineering Electromagnetic noise poses a major problem for communications, prompting wireless carriers to invest heavily in technologies to overcome it. But for a team of scientists exploring the atomic realm, measuring tiny fluctuations in noise could hold the key to discovery. “Noise is usually thought of as a …

Coherent light production found in very low optical density atomic clouds

No atom is an island, and scientists have known for decades that groups of atoms form communities that “talk” to each other. But there is still much to learn about how atoms — particularly energetically excited ones — interact in groups. In a study published in PRX Quantum, physicists from the University of Wisconsin–Madison observed …

Thad Walker honored with Vilas Distinguished Achievement Professorship

Extraordinary members of the University of Wisconsin–Madison faculty, including physics professor Thad Walker, have been honored during the last year with awards supported by the estate of professor, U.S. senator and UW Regent William F. Vilas (1840-1908). Walker was one of seventeen professors were named to Vilas Distinguished Achievement Professorships, an award recognizing distinguished scholarship …

Detailed analysis of old star provides template for heavy element formation

This story was originally published by University Communications The fusion furnaces that are the universe’s stars create the elements from helium up to iron. But iron is only number 26 on the periodic table out of well over 100 known elements. So the heavier ones, like gold, lead and uranium, must come from somewhere other …

Mark Saffman named WARF professor

This post is adapted from the original Thirty-two members of the University of Wisconsin–Madison faculty — including physics professor Mark Saffman — have been awarded fellowships from the Office of the Vice Chancellor for Research and Graduate Education for 2022-23. The awardees span the four divisions on campus: arts and humanities, physical sciences, social sciences …

Congratulations to Professor Lawler on his retirement!

After 42 years on the UW–Madison faculty, Jim Lawler, the Arthur and Aurelia Schawlow Professor of Physics, has announced his retirement. Lawler is an atomic, molecular & optical physicist with a focus developing and applying laser spectroscopic techniques for determining accurate absolute atomic transition probabilities. His retirement is official as of May 22. “What we’ve …

Ultraprecise atomic clock poised for new physics discoveries

University of Wisconsin–Madison physicists have made one of the highest performance atomic clocks ever, they announced Feb. 16 in the journal Nature. Their instrument, known as an optical lattice atomic clock, can measure differences in time to a precision equivalent to losing just one second every 300 billion years and is the first example of …

Shimon Kolkowitz one of four UW professors awarded Sloan Fellowship

Four University of Wisconsin–Madison professors, including assistant professor of physics Shimon Kolkowitz, have been named to Sloan Research Fellowships — competitive, prestigious awards given to promising researchers in the early stages of their careers. “Today’s Sloan Research Fellows represent the scientific leaders of tomorrow,” says Adam F. Falk, president of the Alfred P. Sloan Foundation, …

Shimon Kolkowitz earns NSF CAREER award

Shimon Kolkowitz has already developed one of the most precise atomic clocks ever. Now, the UW­­–Madison physics professor has been awarded a Faculty Early Career Development (CAREER) award from the National Science Foundation (NSF) to use his atomic clocks to potentially answer some big questions about the physics of our universe. The five-year, $800,000 in …