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Steven Cundiff

Content About: Steven Cundiff

Published: 10/06/2016 - 10:01am Type of Content: News

A paper entitled Coherent Control of the Exciton-Biexciton System in an InAs Self-Assembled Quantum Dot Ensemble by Former JILA Fellow Steven T. Cundiff's group at the University of Michigan was published online in Physical Review Letters on October 6, 2016. Former JILANs Takeshi Suzuki and Rohan Singh were the paper's first and second authors, respectively. The new paper is both an...

Published: 02/26/2014 - 10:34am Type of Content: Article-Research Highlight

When Andy Almand-Hunter and his colleagues in the Cundiff group shined a laser on a sample of gallium arsenide (GaAs), the last thing they were expecting to create was a fog of liquid-like quantum droplets, which the group named "dropletons." Dropletons are a new, stable form of matter much like an ordinary liquid—with one key difference.

Unlike normal everyday liquids, quantum droplets...

Published: 01/28/2014 - 9:57am Type of Content: Article-Research Highlight

Real-world quantum mechanics may not always work exactly like the simple picture presented in textbooks, according to observations made by research associate Gaël Nardin and his colleagues in the Cundiff group.

In a recent experiment (described online in Physical Review Letters this week), the group discovered evidence of coupling between particles in semiconductor quantum wells that...

Published: 01/14/2014 - 2:14pm Type of Content: News

Steve Cundiff was named an IEEE Fellow on January 1, 2014. In electing him as a Fellow, the Board of Directors of the Institute of Electrical and Electronics Engineers, Inc. cited him "for contributions to self-referenced optical frequency combs and ultrafast nonlinear solid-state spectroscopy."

"I am delighted to share the good news with you and to congratulate you on having this...

Published: 02/27/2013 - 10:25am Type of Content: Article-Research Highlight

The Cundiff group has taken an important step forward in the study of the quantum world. It has come up with an experimental technique to measure key parameters needed to solve the Schrödinger equation.

The amazing Schrödinger equation describes the time-dependent evolution of quantum states in a physical system such as the group’s hot gas of potassium atoms (K). But, for the equation...

Published: 02/27/2013 - 11:19am Type of Content: News

Steve Cundiff will receive a Silver Medal from the U. S. Department of Commerce for his leadership of JILA’s X-Wing project at an award ceremony to be held in Washington, D. C. on January 8, 2013. He is also being honored for this achievement during the 40th annual NIST Awards Ceremony at NIST in Gaithersburg, Maryland on December 5, 2012.

JILA is the joint research institute between...

Published: 01/12/2012 - 5:00pm Type of Content: Article-Research Highlight

We can get valuable information about a material by studying how it responds to light.  But up to now, researchers have been forced to ignore how some of light’s stranger quantum behavior, such as being in a superposition of one or more intensity states, affects these measurements.  New research from the Cundiff group (with newly minted PhD Ryan Smith and graduate student Andy Hunter...

Published: 05/16/2011 - 6:00pm Type of Content: Article-Research Highlight

The semiconductor gallium arsenide (GaAs) is used to make tiny structures in electronic devices such as integrated circuits, light-emitting diodes, laser diodes, and solar cells that directly convert light into electrical energy. Because of GaAs’s importance to modern electronics, the Cundiff group seeks to understand the fundamental physics of its light-matter interactions on atomic and...

Published: 06/17/2013 - 12:58pm Type of Content: News

JILA Fellow Steven Cundiff  has received the Optical Society of America’s 2011 William F. Meggers Award. The award recognizes outstanding work in the study and measurement of the interactions between light and matter (spectroscopy). The award cited Cundiff’s contributions to the field of ultrafast spectroscopy of semiconductors, including multidimensional Fourier transform techniques, and...

Published: 08/17/2010 - 6:00pm Type of Content: Article-Research Highlight

When former graduate student Mingming Feng started his thesis project, his goal was to build and characterize a mode-locked quantum dot diode laser in Kevin Silverman’s lab at the National Institute of Standards and Technology (NIST). Feng chose this lab (after consultation with his advisor Steve Cundiff) because Silverman not only does a lot of work on diode laser development, but also...

Published: 04/08/2009 - 6:00pm Type of Content: Article-Research Highlight

Fellows Steve Cundiff and Ralph Jimenez have created two precision optics instruments with a priceless potential for shedding light on condensed-matter and biological physics. Instrument shop staffer Kim Hagen aided and abetted them in their endeavor by creating exquisite CAD drawings and machining precision parts.

After three years of development, the Institute is now home to two JILA...

Published: 09/29/2007 - 6:00pm Type of Content: Article-Research Highlight

In Fellow Steve Cundiff’s lab, echoes of light are illuminating the quantum world. Former Graduate Student Gina Lorenz used a technique known as echo peak shift spectroscopy to probe the interactions of potassium atoms in a dense vapor. Research Associate Sam Carter then used the same method to investigate the interactions of excitons confined in two-dimensional semiconductor quantum wells....

Published: 02/09/2007 - 5:00pm Type of Content: Article-Research Highlight

Researchers are investigating a new kind of microelectronics called spintronics. These devices will rely on the spindependent behavior of electrons in addition to (or even instead of) conventional charge-based circuitry. Researchers in physics and engineering anticipate that these devices will process data faster, use less power than today's conventional semiconductor devices, and work...

Published: 02/09/2006 - 5:00pm Type of Content: Article-Research Highlight

"Watch" atoms collide! Thrill to the twists and turns of potassium atom wave functions as the atoms come closer and closer to impact! "See" the atoms deform, then recover as they smash together and fly apart inside a dense atomic vapor! It's all in a day's work for Graduate Student Virginia (Gina) Lorenz and Fellow Steve Cundiff.

The researchers use femtosecond pulses of laser light to...

Published: 04/08/2005 - 6:00pm Type of Content: Article-Research Highlight

Pete Roos, Tara Fortier, Xiaoqin Li, Ryan Smith, Jessica Pipis, and Steve Cundiff are using a phase-controlled mode-locked laser to control quantum processes in semiconductors. Semiconductors are capable of producing electrical currents from light (and vice-versa) and are the basis for a wide variety of optoelectronic devices, including photodiodes, light-emitting diodes, and solar cells....

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