Kuntheak KHENG

Service de Physique des Matériaux et des Microstructures

NanoPhysique et SemiConducteurs



Professor at Grenoble University Joseph Fourier


Sujets de recherche

Specialist of Physic of semiconductors and nanostructures, especially their optical properties, his interests include nano-fabrication, optimization of growth conditions to improve the optical properties, exploration of possibilities of using nano-emitters for quantum optics.

He has coordinated the ANR (French National Research Agency) project BONAFO (Dots in Nanowires for Optic; http://pages.ief.u-psud.fr/bonafo/),  2009-2011, whose targets are to acquire the growth control of heterostructures in nanowires (with InAsP, CdZnSe and AlGaN), to get a deep understanding of their optical fundamental properties and to evaluate their advantages for opto-electronic applications. He is currently the main coordinator of the ANR project MagWires (Magnetic semiconductor quantum dots in nanoWires) 2011-2015.



Born in 1965, married, 3 children

Professional Career
­    2003-Present: Professor (PR1 from 2009) , Université Joseph Fourier (UJF), Grenoble
­    1995-2003: Assistant Professor (Maître de Conférences), UJF

­    1995: PhD in Physics, "Negatively charged exciton X- in CdTe/CdZnTe quantum wells", CEA-Grenoble, UJF
­    1991-1992 : French National Service (Coopération), 16-months of research activity at Fraunhoffer Institute, Freiburg, Germany
­    1990: Agrégation de Sciences Physiques (national competitive teaching examination, ranked 8th)
­    1990 : Magistère des Sciences de la Matière (Master of Science), ENS Lyon
­    1987-1991: Ecole Normale Supérieure de Lyon
­    1985: bac E (mathématiques et technique)

­    1996: Young Scientist Prize of the "Grenoble Pôle Européen Universitaire et Scientifique" for the PhD thesis
­    2002: Junior Member of Institut Universitaire de France.
­    2002: Gold medal of University of Grenoble


Publications scientifiques


Ultrafast Room Temperature Single-Photon Source from Nanowire-Quantum Dots

S. Bounouar, M. Elouneg-Jamroz, M. den Hertog, C. Morchutt, E. Bellet-Amalric, R. André, C. Bougerol, Y. Genuist, J.-Ph. Poizat, S. Tatarenko, and K. Kheng, Nano Lett. 12, 2977 (2012)


Exciton-phonon coupling efficiency in CdSe quantum dots embedded in ZnSe nanowires

S. Bounouar, C. Morchutt, M. Elouneg-Jamroz,, L. Besombes, R. André, E. Bellet-Amalric, C. Bougerol, M. Den Hertog, K. Kheng, S. Tatarenko, and J. Ph. Poizat, Phys. Rev. B 85 (2012) 035428


Insertion of CdSe quantum dots in ZnSe nanowires: Correlation of structural and chemical characterization with photoluminescence.

M. Den Hertog, M. Elouneg-Jamroz, E. Bellet-Amalric, S. Bounouar, C. Bougerol, R. André, Y. Genuist, J.P. Poizat, K. Kheng and S. Tatarenko, J. of Appl. Phys. 110, 034318 (2011)


Subnanosecond spectral diffusion of a single quantum dot in a nanowire

G. Sallen, A. Tribu, T. Aichele, R. André, L. Besombes, C. Bougerol, M. Richard, S. Tatarenko, K. Kheng, and J.-Ph. Poizat, Phys. Rev. B 84, 041405(R) (2011). Also in Viewpoint “Quantum dots shine unsteadily“, M. J. Fernée, Physics 4, 56 (2011)


Subnanosecond spectral diffusion measurement using photon correlation

Sallen G, Tribu A, Aichele T, Andre R, Besombes L, Bougerol C, Richard M, Tatarenko S, Kheng K, Poizat JP

Nature Photonics 4 (2010) 696-699

Also in News & views “Frequency jitter of a nano-emitter”. M. Orrit, Nature Photonics 4, 667 (2010)


Optical characterization of type-II CdTe/CdSe/CdTe heterostructure nanorods

H. Zhao, B. Koo, D. Chen, B. A. Korgel and K. Kheng. Journal of Physics: Conference Series 210, 012029 (2010)


Exciton dynamics of a single quantum dot embedded in a nanowire

G. Sallen, A. Tribu, T. Aichele, R. André, L. Besombes, C. Bougerol, S. Tatarenko, K. Kheng, and J. Ph. Poizat, Phys. Rev.  B 80, 085310  (2009)


A High-Temperature Single-Photon Source from Nanowire Quantum Dots

A. Tribu, G. Sallen, T. Aichele, R. André, J. P. Poizat, C. Bougerol, S. Tatarenko, and K. Kheng, Nano Lett. 8, 4326 (2008). Also in «Research Highlights», Nature Photonics 3, 4 (2009)


Defect-free ZnSe nanowire and nano-needle nanostructures

T. Aichele, A. Tribu, C. Bougerol, K. Kheng, R. Andre, S. Tatarenko, Appl. Phys. Lett. 93, 143106 (2008)


Relaxation of electron-hole pairs by coherent emission of LO-phonons in the quantum kinetic regime measured in CdZnTe quantum wells

S. Cronenberger, C. Brimont, O. Crégut, K. Kheng, H. Mariette, M. Gallart, B. Hönerlage, and P. Gilliot, Phys. Rev. B 77, 195311 (2008)


Dernières publications (base publiCEA)





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