Publications de Alessandro Surrente

Non equilibrium anisotropic excitons in atomically thin ReS2

Andras Kis, Alessandro Surrente, Andrei Kucharavy, Dmitry Ovchinnikov

We present a systematic investigation of the electronic properties of bulk and few layer ReS2 van der Waals crystals using low temperature optical spectroscopy. Weak photoluminescence emission is observed from two non-degenerate band edge excitonic transit ...

IOP PUBLISHING LTD2019

Impact of photodoping on inter- and intralayer exciton emission in a MoS2/MoSe2/MoS2 heterostructure

Andras Kis, Alessandro Surrente, Dumitru Dumcenco, Yen-Cheng Kung

AIP American Institute of Physics2018

Intervalley Scattering of Interlayer Excitons in a MoS2/MoSe2/MoS2 Heterostructure in High Magnetic Field

Andras Kis, Alessandro Surrente, Dumitru Dumcenco, Yen-Cheng Kung

American Chemical Society (ACS)2018

Highly Oriented Atomically Thin Ambipolar MoSe2

Andras Kis, Oleg Yazyev, Alessandro Surrente, Philippe Gillet, Oriol López Sánchez, Ming-Wei Chen, Dmitry Ovchinnikov, Michele Pizzochero

Transition metal dichalcogenides (TMDCs), together with other two-dimensional (2D) materials, have attracted great interest due to the unique optical and electrical properties of atomically thin layers. In order to fulfill their potential, developing large ...

American Chemical Society2017

Revealing Large-Scale Homogeneity and Trace Impurity Sensitivity of GaAs Nanoscale Membranes

Alessandro Surrente, Anna Fontcuberta i Morral, Philippe Leroux, Gözde Tütüncüoglu, Francesca Amaduzzi

III-V nanosttuctures have the potential to revolutionize optoelectronics and energy harvesting. For this to become a reality, critical issues such as reproducibility and sensitivity to defects should be resolved. By discussing the optical properties of mol ...

American Chemical Society2017

Optical properties of GaAsSb nanowire networks and GaAs nanomembranes

Alessandro Surrente, Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Jean-Baptiste Leran, Martin George Friedl, Heidi Andrea Potts

Ieee2016

Self-formation of hexagonal nanotemplates for growth of pyramidal quantum dots by metalorganic vapor phase epitaxy on patterned substrates

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Romain Carron, Alessandro Surrente, Pascal Gallo

We demonstrate the self-formation of hexagonal nanotemplates on GaAs (111)B substrates patterned with arrays of inverted tetrahedral pyramids during metal-organic vapor phase epitaxy and its role in producing high-symmetry, site-controlled quantum dots (QD ...

Tsinghua Univ Press2016

Polarization properties and disorder effects in H-3 photonic crystal cavities incorporating site-controlled, high-symmetry quantum dot arrays

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Alessandro Surrente, Pascal Gallo, Marco Felici

We report on the effects of optical disorder on breaking the symmetry of the cavity modes of H-3 photonic crystal cavities incorporating site-controlled pyramidal quantum dots (QDs) as the internal light source. The high in-plane symmetry of the polarizati ...

Amer Inst Physics2015

Epitaxial Growth and Optical Properties of Dense Arrays of Pyramidal Quantum Dots

Alessandro Surrente

EPFL2013

Ordered systems of site-controlled pyramidal quantum dots incorporated in photonic crystal cavities

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Alessandro Surrente, Pascal Gallo, Marco Felici

The coupling of a prescribed number of site-controlled pyramidal quantum dots (QDs) with photonic crystal (PhC) cavities was studied by polarization and power-dependent photoluminescence measurements. The energy of the cavity mode could be readily tuned, m ...

Institute of Physics2011

Semianalytical approach to the design of photonic crystal cavities

Elyahou Kapon, Kirill Atlasov, Alessandro Surrente, Marco Felici

Most current methods for the engineering of photonic crystal (PhC) cavities rely on cumbersome, computationally demanding trial-and-error procedures. In the present work, we take a different approach to the problem of cavity design, by seeking to establish ...

American Physical Society2010

High quality superconducting NbN thin films on GaAs

Francis Lévy, Francesco Marsili, Alessandro Surrente, Alessandro Gaggero

A very promising way to increase the detection efficiency of nanowire superconducting single-photon detectors (SSPDs) consists in integrating them with advanced optical structures such as distributed Bragg reflectors (DBRs) and optical waveguides. This req ...

2009

Dense arrays of pyramidal quantum dots with narrow linewidth photoluminescence spectra

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Alessandro Surrente, Pascal Gallo, Marco Felici

Arrays of site-controlled, pyramidal InGaAs/GaAs quantum dots (QDs) grown by organo-metallic chemical vapour deposition with densities comparable to those of self-assembled QDs (5 x 109 cm(-2)) are demonstrated. The QDs exhibit high quality photoluminescen ...

2009