Publications de Pascal Gallo | EPFL Graph Search

Single crystal diamond gain mirrors for high performance vertical external cavity surface emitting lasers

Niels Quack, Grigore Suruceanu, Gergely Huszka, Alexandru Mereuta, Andrei Caliman, Pascal Gallo, Mehdi Naamoun

We report on the design, fabrication and optical performance of gain mirrors in single crystal diamond substrates for vertical external cavity surface emitting lasers (VECSELs). VECSELs have gained attention recently due to their potential for high emissio ...

2020

Reactive ion etching of single crystal diamond by inductively coupled plasma: State of the art and catalog of recipes

Niels Quack, Pascal Gallo, Teodoro Graziosi, Sichen Mi, Marcell Kristof Kiss, Mehdi Naamoun

2020

Flip-Chip Wafer-Fused OP-VECSELs Emitting 3.65 W at the 1.55-mu m Waveband

Elyahou Kapon, Alok Rudra, Grigore Suruceanu, Alexandru Mereuta, Andrei Caliman, Pascal Gallo

Optically pumped vertical external cavity surface emitting lasers (VECSELs) based on flip-chip gain mirrors emitting at the 1.55 mu m wavelength range are reported. The gain mirrors employ wafer-fused InAlGaAs/InP quantum well heterostructures and GaAs/AlA ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019

Single crystalline diamond part production method for stand alone single crystalline mechanical and optical component production

Niels Quack, Pascal Gallo, Teodoro Graziosi, Marcell Kristof Kiss

The present invention relates to a free-standing single crystalline diamond part and a single crystalline diamond part production method. The method includes the steps of: - providing a single crystalline diamond substrate or layer; - providing a first adh ...

2019

1.55-mu m wavelength wafer-fused OP-VECSELs in flip-chip configuration

Elyahou Kapon, Alexandru Mereuta, Andrei Caliman, Pascal Gallo

Optically-pumped vertical external cavity surface emitting lasers (VECSELs) based on flip-chip gain mirrors emitting at the 1.55-mu m wavelength range are reported. The gain mirrors employ wafer-fused InAlGaAs/InP quantum well heterostructures and GaAs/AlA ...

SPIE-INT SOC OPTICAL ENGINEERING2019

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

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

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

Effect of Pure Dephasing and Phonon Scattering on the Coupling of Semiconductor Quantum Dots to Optical Cavities

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Alexey Lyasota, Clément William Tendaï Jarlov, Milan Calic

Using site-controlled semiconductor quantum dots (QDs) free of multiexcitonic continuum states, integrated with photonic crystal membrane cavities, we clarify the effects of pure dephasing and phonon scattering on exciton-cavity coupling in the weak-coupli ...

Amer Physical Soc2016

Exciton dynamics in a site-controlled quantum dot coupled to a photonic crystal cavity

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Alexey Lyasota, Clément William Tendaï Jarlov

Exciton and cavity mode (CM) dynamics in site-controlled pyramidal quantum dots (QDs), integrated with linear photonic crystal membrane cavities, are investigated for a range of temperatures and photo-excitation power levels. The absence of spurious multi- ...

Amer Inst Physics2015

Site-controlled InGaAs/GaAs pyramidal quantum dots grown by MOVPE on patterned substrates using triethylgallium

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Alexey Lyasota, Clément William Tendaï Jarlov, Bruno Marie Dominique Rigal

The fabrication and characterization of site-controlled InGaAs/GaAs quantum dots (QDs) made by MOVPE using triethylgallium (TEGa) on patterned {111}B GaAs substrates are reported. Results are compared to more traditional pyramidal QD structures grown emplo ...

Elsevier Science Bv2015

Integration of multiple site-controlled pyramidal quantum dot systems with photonic-crystal membrane cavities

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Alexey Lyasota, Clément William Tendaï Jarlov

We describe the fabrication, epitaxial growth and photoluminescence (PL) spectra of systems of site-controlled pyramidal quantum dots (QDs) integrated with photonic crystal (PhC) membrane cavities. The spectra of the individual QDs are characterized by sca ...

Elsevier Science Bv2015