Publications by Massimo Gurioli

Engineering of light confinement in strongly scattering disordered media

Disordered photonic materials can diffuse and localize light through random multiple scattering, offering opportunities to study mesoscopic phenomena, control light-matter interactions, and provide new strategies for photonic applications. Light transport ...

Nature Publishing Group2014

Simultaneous near field imaging of electric and magnetic field in photonic crystal nanocavities

Massimo Gurioli, Laurent Balet

The insertion of a metal-coated tip on the surface of a photonic crystal microcavity is used for simultaneous near field imaging of electric and magnetic fields in photonic crystal nanocavities, via the radiative emission of embedded semiconductor quantum ...

2012

Antibonding ground state in photonic crystal molecules

Massimo Gurioli, Laurent Balet

We employ a far-field analysis of the angular emission pattern to experimentally assess the symmetry of localized modes in coupled photonic-crystal cavities. We demonstrate that the spatial distribution of localized modes in photonic-crystal nanocavities m ...

2012

Mode tuning of photonic crystal nanocavities by photoinduced non-thermal oxidation

Massimo Gurioli, Laurent Balet, Santosh Kumar

A method to achieve photoinduced tuning of PhC nanocavity modes is discussed and implemented. It is based on light induced oxidation in air atmosphere with very low thermal budget which produces a local reduction of the GaAs membrane effective thickness an ...

AIP American Institute of Physics2012

Post-fabrication control of evanescent tunnelling in photonic crystal molecules

Massimo Gurioli, 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

Ideal homoatomic and heteroatomic photonic crystal molecules

Massimo Gurioli, 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

Young's Type Interference for Probing the Mode Symmetry in Photonic Structures

Massimo Gurioli, Laurent Balet

A revisited realization of the Young's double slit experiment is introduced to directly probe the photonic mode symmetry by photoluminescence experiments. We experimentally measure the far field angular emission pattern of quantum dots embedded in photonic ...

2011

Magnetic Imaging in Photonic Crystal Microcavities

Massimo Gurioli, Laurent Balet

We demonstrate the nonresonant magnetic interaction at optical frequencies between a photonic crystal microcavity and a metallized near-field microscopy probe. This interaction can be used to map and control the magnetic component of the microcavity modes. ...

2010

Probing exciton density of states through phonon-assisted emission in GaN epilayers: A and B exciton contributions

Jean-François Carlin, Nicolas Grandjean, Raphaël Butté, Eric Feltin, Massimo Gurioli

A detailed experimental investigation of the phonon-assisted emission in a high-quality c-plane GaN epilayer is presented up to 200 K. By performing photoluminescence and reflectivity measurements, we find important etaloning effects in the phonon-replica ...

2010

Mode hybridization in photonic crystal molecules

Massimo Gurioli, 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

Nanofluidic control of coupled photonic crystal resonators

Massimo Gurioli, 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

Quantum confinement dependence of the energy splitting and recombination dynamics of A and B excitons in a GaN/AlGaN quantum well

Jean-François Carlin, Nicolas Grandjean, Raphaël Butté, Eric Feltin, Dobri Simeonov, Massimo Gurioli

We report the observation of well-resolved A and B excitonic resonances in the reflectivity spectra of a wedged GaN/AlGaN quantum well (QW) with 5% Al content in the barriers for different well thicknesses. For the thicker well cases, the energy splitting ...

2009

Polarization-sensitive near-field investigation of photonic crystal microcavities

Massimo Gurioli, Laurent Balet

We report on polarization sensitive imaging of two-dimensional photonic crystal microcavity modes. By using a near-field scanning optical microscope with a polarization sensitive setup, it is possible to selectively map, with a resolution beyond the diffra ...

AIP American Institute of Physics2009

Tuning of photonic crystal cavities by controlled removal of locally infiltrated water

Massimo Gurioli, Laurent Balet

We present a spectral tuning mechanism of photonic crystal microcavities based on microfluidics. The microinfiltration with water of one or few cavity holes and its subsequent controlled evaporation allow us to tune the cavity resonances in a spectral rang ...

American Institute of Physics2009

Near-field imaging of coupled photonic-crystal microcavities

Massimo Gurioli, Laurent Balet

We report by means of near-field microscopy on the coupling between two adjacent photonic crystal microcavities. Clear-cut experimental evidence of the spatial delocalization of coupled-cavity optical modes is obtained by imaging the electromagnetic local ...

AIP American Institute of Physics2009

Spectral tuning and near-field imaging of photonic crystal microcavities

Romuald Houdré, Carl Zinoni, Massimo Gurioli, Laurent Balet

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

Near-field mapping of quantum dot emission from single-photonic crystal cavity modes

Romuald Houdré, Massimo Gurioli, Laurent Balet, Nicolas Le Thomas

We directly investigate, by means of near-field spectroscopy, the spatial distribution of the optical cavity modes of 2D photonic crystal microcavities. Numerical simulations confirm that the photoluminescence maps of quantum dots embedded in the photonic ...

2008

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

Massimo Gurioli, 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

Impact of quantum confinement and quantum confined Stark effect on biexciton binding energy in GaN/AlGaN quantum wells

Jean-François Carlin, Jacques Levrat, Nicolas Grandjean, Raphaël Butté, Eric Feltin, Dobri Simeonov, Massimo Gurioli

We report on time-resolved photoluminescence measurements carried out along the thickness gradient of two types of GaN/AlGaN quantum wells with low Al content in the barriers (5% and 9%, respectively). A reduction of the biexciton binding energy with incre ...

2008

Biexciton kinetics in GaN quantum wells: Time-resolved and time-integrated photoluminescence measurements

Jean-François Carlin, Nicolas Grandjean, Raphaël Butté, Eric Feltin, Dobri Simeonov, Massimo Gurioli

We report on the experimental achievement of narrow ultraviolet excitonic and biexcitonic emission from GaN/AlGaN quantum wells. The very large biexciton binding energy (up to 12 meV) inhibits thermalization between the two species allowing to study the re ...

2008