1985 …2019
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Persoonlijk profiel

Quote

"The development of techniques to cool and trap atoms with laser light has greatly changed atomic physics research. Increasingly, applications emerge, with cold charged particle beams as a prime example."

Research profile

Edgar Vredenbregt is an associate professor with the research group Coherence and Quantum Technology at the TU/e department of Applied Physics. His research focuses on the use of atom trapping for quantum information research and to create a new class of charged particle sources, featuring ultracold electrons (10K) and ions (1mK). Both offer a new route toward high brightness by virtue of a high angular intensity. Applications of the ultracold sources are ultrafast electron diffraction and focused-ion beam instrumentation.

Ultracold ions can be extracted from a beam of laser-cooled atoms using photo-ionization, allowing for bright ion beams with a very small longitudinal energy spread (200 meV demonstrated). As a result Laser Cooled Focused Ion Beams provide a next-generation tool for observing, modifying and repairing silicon wafers, enabling milling on the 1 nanometer scale.

Rydberg atoms can fill the role of qubits with strong mutual interactions that can be harnessed to create quantum gates. A structured gas of Rydberg atoms is created by patterned laser-excitation of a trapped atomic cloud. Spectroscopy reveals effects of long-range interactions such as blockade and facilitation phenomena.

Academic background

Edgar Vredenbregt studied Applied Physics at Eindhoven University of Technology (TU/e, the Netherlands) where he received his MSc in 1986. In 1990, he obtained his PhD at TU/e in Atomic and Molecular Physics under supervision of professor Herman Beijerinck. From 1991 until 1993, he was a postdoctoral researcher at the QEX group of professor Harold Metcalf at the State University of New York at Stony Brook (USA). In 1993, he returned to TU/e to become a postdoctoral researcher in the development of intensified atomic beams. From 1995-2000, he was a fellow of the Royal Netherlands Academy of Arts and Sciences (KNAW) at TU/e, to perform research on ultra-cold collisions and intensified atomic beams. In 1998, he was a visiting research scientist with the laser cooling and trapping group at the National Institute of Standards and Technology (NIST) in Gaithersburg (USA). In 2000, Edgar Vredenbregt was appointed assistant professor at TU/e and in 2016 he was promoted to associate professor with the research group Coherence and Quantum Technology, department of Applied Physics.

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Onderzoeksoutput 1985 2019

An ultracold and ultrafast electron source

Franssen, J., 6 mei 2019, Eindhoven : Technische Universiteit Eindhoven. 176 blz.

Onderzoeksoutput: ScriptieDissertatie 1 (Onderzoek TU/e / Promotie TU/e)Academic

Open Access
Bestand
2 Citaties (Scopus)

Energy spread of ultracold electron bunches extracted from a laser cooled gas

Franssen, J. G. H., Kromwijk, J. M., Vredenbregt, E. J. D. & Luiten, O. J., 16 jan 2018, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 51, 3, 7 blz., 035007

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

filters
gases
shot
lasers
photoionization
1 Citaat (Scopus)

Measurements of the energy distribution of a high brightness rubidium ion beam

ten Haaf, G., Wouters, S. H. W., Nijhof, D. F. J., Mutsaers, P. H. A. & Vredenbregt, E. J. D., 5 apr 2018, In : Ultramicroscopy. 190, blz. 12-20 9 blz.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Rubidium
rubidium
Ion beams
Ionization
Luminance
2 Citaties (Scopus)

Cavity-enhanced photoionization of an ultracold rubidium beam for application in focused ion beams

ten Haaf, G., Wouters, S. H. W., Mutsaers, P. H. A. & Vredenbregt, E. J. D., 13 nov 2017, In : Physical Review A : Atomic, Molecular and Optical Physics. 96, 5, 12 blz., 053412

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Open Access
Bestand
rubidium
photoionization
ion beams
ionization
cavities
6 Citaties (Scopus)

Direct magneto-optical compression of an effusive atomic beam for application in a high-resolution focused ion beam

ten Haaf, G., de Raadt, T. C. H., Offermans, G. P., van Rens, J. F. M., Mutsaers, P. H. A., Vredenbregt, E. J. D. & Wouters, S. H. W., 22 mei 2017, In : Physical Review Applied. 7, 054013 (2017), blz. 054013-1 -054013-12 12 blz., 7

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Open Access
Bestand
atomic beams
brightness
ion beams
manned orbital telescopes
high resolution

Activiteiten 2006 2017

  • 10 Genodigd spreker
  • 1 Aangemelde presentatie

TOWARDS A HIGH RESOLUTION RB+ FIB

E.J.D. Vredenbregt (Spreker)
19 jun 201722 jun 2017

Activiteit: Types gesprekken of presentatiesAangemelde presentatieWetenschappelijk

workshop Postmobility Experience Sharing

Edgar Vredenbregt (Uitgenodigde spreker)
12 sep 2016

Activiteit: Types gesprekken of presentatiesGenodigd sprekerWetenschappelijk

iCord_International Conference on Rydberg at Durham, Durham University, Joint Quantum Centre, Durham, UK

Edgar Vredenbregt (Uitgenodigde spreker)
3 jul 2015

Activiteit: Types gesprekken of presentatiesGenodigd sprekerWetenschappelijk

PPG seminar, Quantum, Atomic, Molecular and Plasma Physics (QuAMP), Calman Learning Centre, Summer School, Newcastle University, Durham, UK

Edgar Vredenbregt (Uitgenodigde spreker)
16 sep 2014

Activiteit: Types gesprekken of presentatiesGenodigd sprekerWetenschappelijk

Coldbeams : Ultra-Cold Gas for Bright Electron and Monochromatic Ion Source Workshop, Nimes, France

Edgar Vredenbregt (Uitgenodigde spreker)
1 okt 2012

Activiteit: Types gesprekken of presentatiesGenodigd sprekerWetenschappelijk

Cursussen

Experimental physics 1

1/09/12 → …

Cursus

Experimental physics 2

1/09/12 → …

Cursus

Experimental physics 3

1/09/13 → …

Cursus

Introduction to quantum physics

1/09/13 → …

Cursus

Ultracold quantum physics

1/09/15 → …

Cursus

Impacten

Ultracold ion beams

Edgar J.D. Vredenbregt (Onderzoeker), Rianne Sanders (Content manager)

Impact: Research Topic/Theme (at group level)

Bestand

Scriptie

2D magneto-optical trap as source for cold ions

Auteur: Kusters, D., 31 okt 2008

Begeleider: Vredenbregt, E. (Afstudeerdocent 1) & Reijnders, M. (Afstudeerdocent 2)

Scriptie/masterproef: Master

Bestand

A new high-brightness ion source: the atomic beam laser-cooled ion source

Auteur: Notermans, R., 31 aug 2012

Begeleider: Vredenbregt, E. (Afstudeerdocent 1)

Scriptie/masterproef: Master

Bestand

Atomic Beam Laser-cooled Ion Source : towards sub-nm ion beam milling

Auteur: ten Haaf, G., 30 nov 2013

Begeleider: Vredenbregt, E. (Afstudeerdocent 1) & Wouters, S. (Afstudeerdocent 2)

Scriptie/masterproef: Master

Bestand

Beam experiments on KrF, XeF, KrBr and XeBr excimer formation

Auteur: Vrakking, M., 31 aug 1987

Begeleider: Vredenbregt, E. (Afstudeerdocent 1) & Beijerinck, H. (Afstudeerdocent 2)

Scriptie/masterproef: Master

Bestand

Cold atom dynamics in a magnetic trap

Auteur: Gommers, R., 29 feb 2004

Begeleider: Claessens, B. (Afstudeerdocent 1), Vredenbregt, E. (Afstudeerdocent 2) & Beijerinck, H. (Afstudeerdocent 2)

Scriptie/masterproef: Master

Bestand