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Andreas Becker

Content About: Andreas Becker

Published: 12/03/2015 - 1:20pm Type of Content: Article-Research Highlight

Imagine laser-like x-ray beams that can “see” through materials––all the way into the heart of atoms. Or, envision an exquisitely controlled four-dimensional x-ray microscope that can capture electron motions or watch chemical reactions as they happen. Such exquisite imaging may soon be possible with laser-like x-rays produced on a laboratory optical table. These possibilities have opened up...

Published: 03/02/2015 - 8:09am Type of Content: Article-Research Highlight

The photoelectric effect has been well known since the publication of Albert Einstein’s 1905 paper explaining that quantized particles of light can stimulate the emission of electrons from materials. The nature of this quantum mechanical effect is closely related to the question how much time it might take for an electron to leave a material such as a helium atom. The exciting news at JILA is...

Published: 05/27/2014 - 10:36am Type of Content: Article-Research Highlight

Mid-infrared (mid-IR) laser light is accomplishing some remarkable things at JILA. This relatively long-wavelength light (2–4 µm), when used to drive a process called high-harmonic generation, can produce bright beams of soft x-rays with all their punch packed into isolated ultrashort bursts. And, all this takes place in a tabletop-size apparatus. The soft x-rays bursts have pulse durations...

Published: 07/26/2013 - 8:28am Type of Content: News

JILA research associate Carlos Hernández-García has been honored with a 4th Award for Young Researchers from the 12th International Symposium on Ultrafast Intense Laser Science. The award recognizes Hernández-García's work on high-harmonic and zeptosecond pulse generation with the Becker and Kapteyn/Murnane groups in JILA and colleagues in Spain. It includes a travel grant to present his work...

Published: 07/26/2013 - 7:49am Type of Content: Article-Research Highlight

Many people are familiar with the beautiful harmonies created when two sound waves interfere with each other, producing a periodic and repeating pattern that is music to our ears. In a similar fashion, two interfering x-ray waves may soon make it possible to create the fastest possible strobe light ever made. This strobe light will blink fast enough to allow researchers to study the nuclei of...

Published: 04/09/2013 - 3:19pm Type of Content: Article-Research Highlight

Former research associate Antonio Picón, research associate Agnieszka Jaron-Becker, and Fellow Andreas Becker have discovered a way to make the hydrogen molecular ion (H2+) fall apart into its constituent atoms without exciting or ionizing the electron. This startling finding was a big surprise for the researchers, who recently figured out how to do something that conventional wisdom said was...

Published: 10/27/2011 - 6:00pm Type of Content: Article-Research Highlight

There's something happenin’ here, what it is ain’t exactly clear -- Buffalo Springfield

Theorists Norio Takemoto (now at the Weizmann Institute of Science) and Fellow Andreas Becker figured that something was amiss when they first analyzed the details of what occurs when an ultrafast laser dislodges an electron from a “simple” molecular ion, H2+. Since H2+ has...

Published: 01/03/2011 - 5:00pm Type of Content: Article-Research Highlight

The dance of electrons as a bromine molecule (Br2) separates into two atoms is intricate and complex. The process of breaking up takes far longer than expected (~150 vs 85 fs) because the cloud of electrons that bind atoms together in a molecule behaves as if it were still surrounding a molecule until the last possible moment — when the atomic fragments are about twice the normal distance...

Published: 12/19/2010 - 5:00pm Type of Content: Article-Research Highlight

Plucking the two electrons out of helium atoms should allow researchers to study how they interact during a double ionization process — at least in theory. Recently, Fellow Andreas Becker explored whether an ultrashort vacuum ultraviolet (VUV) laser pulse could be used to probe the interactions of helium’s electrons during a double ionization in the presence of an intense...

Published: 11/25/2013 - 2:29pm Type of Content: Biblio
Published: 10/18/2012 - 1:11pm Type of Content: People - Faculty & Research Groups
Published: 03/06/2013 - 3:29pm Type of Content: Biblio
Published: 09/24/2015 - 9:22am Type of Content: Biblio
Published: 06/23/2017 - 10:36am Type of Content: Biblio
Published: 06/20/2013 - 1:58pm Type of Content: Awards
Published: 07/26/2013 - 8:03am Type of Content: Biblio
Published: 03/06/2013 - 3:29pm Type of Content: Biblio
Published: 05/24/2013 - 11:57am Type of Content: Biblio
Published: 07/13/2016 - 4:26pm Type of Content: Biblio
Published: 05/24/2013 - 11:42am Type of Content: Biblio
Published: 04/06/2016 - 8:24am Type of Content: Biblio
Published: 04/04/2013 - 11:30am Type of Content: Biblio
Published: 04/07/2014 - 1:52pm Type of Content: Biblio
Published: 02/03/2014 - 1:47pm Type of Content: Biblio
Published: 03/06/2013 - 3:25pm Type of Content: Biblio
Published: 03/06/2013 - 3:29pm Type of Content: Biblio
Published: 04/27/2016 - 10:49am Type of Content: People - Visiting Fellows
Published: 03/06/2013 - 3:25pm Type of Content: Biblio
Published: 03/06/2013 - 3:29pm Type of Content: Biblio
Published: 09/24/2015 - 9:26am Type of Content: Biblio
Published: 08/09/2013 - 12:37pm Type of Content: Biblio
Published: 09/21/2015 - 10:04am Type of Content: Biblio
Published: 08/09/2013 - 11:58am Type of Content: Biblio
Published: 12/29/2014 - 8:41am Type of Content: Biblio
Published: 03/06/2013 - 3:29pm Type of Content: Biblio
Published: 07/26/2013 - 7:50am Type of Content: Biblio
Published: 03/06/2013 - 3:29pm Type of Content: Biblio
Published: 05/24/2013 - 11:44am Type of Content: Biblio
Published: 05/24/2016 - 11:43am Type of Content: Biblio
Published: 03/06/2013 - 3:25pm Type of Content: Biblio
Published: 04/04/2013 - 11:35am Type of Content: Biblio
Published: 04/10/2014 - 2:38pm Type of Content: Biblio
Published: 03/06/2013 - 3:29pm Type of Content: Biblio
Published: 04/27/2016 - 10:59am Type of Content: People - Visiting Fellows
Published: 03/06/2013 - 3:25pm Type of Content: Biblio
Published: 03/06/2013 - 3:29pm Type of Content: Biblio