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News & Highlights

Research Highlights

Published: Mon, 07/10/2017 - 8:45am

Getting lasers to have a precise single frequency (color) can be trickier than herding cats. So it’s no small accomplishment that the Thompson group has figured out how to use magnetic fields to create atomic cowpokes to wrangle a specific single color into place so that it doesn’t wander hither and yon. The researchers do this with a magnetic field that causes strontium atoms in an optical cavity to stop absorbing light and become transparent to laser light at one specific color. What happens is that the magnetic field creates a transparent window that serves as a gate to let only light of a single frequency pass through.

Plus, the group showed how this transparency might be used to enhance the frequency stability of lasers. By matching a laser’s frequency to that of the transparent window, the laser can be stabilized in a way that makes it insensitive to wanderlust. Wanderlust is caused by vibrations of the mirrors at both ends of the optical cavity, posing a serious challenge for making laser light as pure of a single color as possible. This new insight into laser stabilization could have a big impact on research and industry endeavors that require reasonably simple...

Published: Nov 21, 2016

Graduate student Mike Thompson of the Weber group wants to understand the basic science of...

Published: Nov 11, 2016

For a long time, there’s been a mystery concerning how tiny interactions between individual...

Published: Nov 08, 2016

Fellow Mitch Begelman’s new theory says it’s possible to form stars while a supermassive black...

Published: Oct 31, 2016

Far-red fluorescent light emitted from proteins could one day illuminate the inner workings of...

Published: Oct 27, 2016

Using frequency comb spectroscopy, the Ye group has directly observed transient intermediate...

Published: Sep 26, 2016

The Nesbitt group has invented a nifty technique for exploring the physics and chemistry of a...

Published: Sep 26, 2016

Exciting new theory from the Rey group reveals the profound effects of electron interactions on...

Published: Aug 11, 2016

Graduate student Greg Salvesen, JILA Collaborator Jake Simon (Southwest Research Institute), and...

Published: Jul 28, 2016

Physics education researchers from the University of Colorado Boulder and the University of...

Published: Jul 28, 2016

Newly minted Ph.D. Ming-Guang Hu and his colleagues in the Jin...

Published: Jul 27, 2016

Fellow Phil Armitage and group collaborator Jacob Simon of the Southwest Research Institute are...

Published: Jul 21, 2016

The Raschke group has created an ultrafast optical nanoscope based on a unique way of “nano”...

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