Laurent Balet

Cette personne a quitté l’EPFL

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Publications associées (31)

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Local tuning of photonic crystal nanocavity modes by laser-assisted oxidation

Laurent Balet

The authors demonstrate a sample method to achieve local tuning of optical modes in GaAs photonic crystal nanocavities by continuous wave laser-assisted oxidation in air atmosphere. By irradiation with a focused laser beam at power levels of a few tells of ...

American Institute of Physics2009

Post-fabrication control of evanescent tunnelling in photonic crystal molecules

Laurent Balet

The post-fabrication control of evanescent tunnelling in photonic crystal molecules is demonstrated through the combination of selective infiltration and oxidation. By laser non thermal oxidation, we reduce the photonic coupling by more than 30% while by m ...

Amer Inst Physics2012

Spectral tuning and near-field imaging of photonic crystal microcavities

Romuald Houdré, Laurent Balet, Carl Zinoni

We experimentally observe a sizable and reversible spectral tuning of the resonances of a two-dimensional photonic crystal microcavity induced by the introduction of a subwavelength size glass tip. The comparison between experimental near-field data, colle ...

2008

Picosecond Time-Resolved Cathodoluminescence to Probe Exciton Dynamics in α-Plane (Al,Ga)N/GaN Quantum Wells

Nicolas Grandjean, Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Laurent Balet, Pierre Michel Corfdir, Samuel Sonderegger

Cambridge, Cambridge University Press2011

Mode hybridization in photonic crystal molecules

Laurent Balet

A complete control of the coupling between the modes of two photonic crystal microcavities is obtained by using a combination of several local tuning techniques. By a local and controlled modification of one cavity we are able to bring into resonance modes ...

AIP American Institute of Physics2010

Local tuning of the optical response of two-dimensional photonic crystals

Romuald Houdré, Rolando Ferrini, Libero Zuppiroli, Laurent Balet, Pascale El-Kallassi

Local tuning of the optical response of GaAs-based two dimensional photonic crystals (PhCs) is reported. A selective polymer infiltration technique was developed. Scanning electron microscopy and optical measurements were used to characterize the filled Ph ...

Eindhoven University of Technology2008

Nanofluidic control of coupled photonic crystal resonators

Laurent Balet

A fine control of a photonic molecule is obtained by nanofluidic techniques. The coupling condition between the modes of two photonic crystal nanocavities is modified by spectrally tuning each single resonator. Clear mode anticrossing and transition from l ...

AIP American Institute of Physics2010

Nonlinear optical tuning of photonic crystal microcavities by near-field probe

Laurent Balet

We report on a nonlinear way to control and tune the dielectric environment of photonic crystal microcavities exploiting the local heating induced by near-field laser excitation at different excitation powers. The temperature gradient due to the optical ab ...

American Institute of Physics2008

Ideal homoatomic and heteroatomic photonic crystal molecules

Laurent Balet

A local tuning of the modes of photonic crystal systems both to blue and to red sides of the resonance is implemented by nano-infiltration/evaporation of water and laser micro-oxidation. This technology is used to completely control coupled photonic nanoca ...

2012

Hybrid inorganic-organic photonic devices

Romuald Houdré, Rolando Ferrini, Libero Zuppiroli, Laurent Balet, Nicolas Le Thomas, Pascale El-Kallassi

We present the infiltration of semiconductor photonic devices with organic materials. The infiltration procedures are described and validated. In particular, the optical properties of hybrid photonic crystal cavities are studied. ...

EOS2008

Quantum dot photonic crystal microcavities at 1300 nm for telecom-wavelength single-photon sources

Romuald Houdré, Nicolas Le Thomas, Laurent Balet, Blandine Alloing, Carl Zinoni

2006