Publications by Alexey Lyasota

Mode Interference Effect in Optical Emission of Quantum Dots in Photonic Crystal Cavities

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Clément William Tendaï Jarlov, Milan Calic, Alexey Lyasota, Alessio Massimiliano Davide Miranda

Radiation properties of a pointlike source of light, such as a molecule or a semiconductor quantum dot, can be tailored by modifying its photonic environment. This phenomenon lies at the core of cavity quantum electrodynamics (CQED). Quantum dots in photon ...

American Physical Society2022

Time-resolved physical spectrum in cavity quantum electrodynamics

Alexey Lyasota

The time-resolved physical spectrum of luminescence is theoretically studied for a standard cavity quantum electrodynamics system. In contrast to the power spectrum for the steady state, the correlation functions up to the present time are crucial for the ...

AMER PHYSICAL SOC2022

Remote excitation between quantum emitters mediated by an optical Fano resonance

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Antoine Maxime Delgoffe, Alexey Lyasota, Alessio Massimiliano Davide Miranda

Remote coupling between quantum emitters is of great importance for constructing quantum networks. Conventionally, this can be achieved via photon exchange by incorporating the quantum emitters in a waveguide or a large cavity. However, such photonic struc ...

OPTICAL SOC AMER2021

Theory of Fano effect in cavity quantum electrodynamics

Alexey Lyasota

We propose a Markovian quantum master equation that can describe the Fano effect directly, by assuming a standard cavity quantum electrodynamics system. The framework allows us to generalize the Fano formula, applicable over the weak- and strong-coupling r ...

AMER PHYSICAL SOC2021

Integrated Quantum Photonics using Site-Controlled Quantum Dots and Tailored-Potential Photonic Crystals

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Antoine Maxime Delgoffe, Alexey Lyasota, Alessio Massimiliano Davide Miranda, Yi Yu

We demonstrate several integrated photonics structures incorporating site-controlled quantum dots and photonic crystal cavities with tailored mode structures. Optimal designs for single photon extraction, routing and switching are presented and discussed. ...

IEEE2019

Tilted-potential photonic crystal cavities for integrated quantum photonics

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Antoine Maxime Delgoffe, Bruno Marie Dominique Rigal, Alexey Lyasota, Alessio Massimiliano Davide Miranda

We propose and investigate a new type of photonic crystal (PhC) cavity for integrated quantum photonics, which provides tailored optical modes with both confined and extended spatial components. The structures consist of elongated PhC cavities in which the ...

2019

Limiting the Spectral Diffusion of Nano-Scale Light Emitters using the Purcell effect in a Photonic-Confined Environment

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

Partial suppression of the spectral diffusion of quantum dot (QD) excitons tuned to resonance of a nano-photonic cavity is reported. The suppression is caused by the Purcell enhancement of the QD-exciton recombination rate, which alters the rate of chargin ...

Nature Research2019

Probing disorder and mode localization in photonic crystal cavities using site-controlled quantum dots

Clément William Tendaï Jarlov, Bruno Marie Dominique Rigal, Alexey Lyasota, Irina Kulkova

2018

Single photon extraction and propagation in photonic crystal waveguides incorporating site-controlled quantum dots

Bruno Marie Dominique Rigal, Alexey Lyasota, Irina Kulkova

AIP American Institute of Physics2018

Interaction between site-controlled quantum dot systems and photonic cavity structures

Alexey Lyasota

The goal of this thesis was to investigate light-matter interaction in nanophotonic devices based on site-controlled pyramidal quantum dots (QD) in photonic crystal (PhC) cavities. These QDs provide position and spectral control, which is hardly achievable ...

EPFL2017

Site-controlled quantum dots coupled to photonic crystal waveguides

Benjamin Dwir, Elyahou Kapon, Alok Rudra, Jesper Mork, Clément William Tendaï Jarlov, Bruno Marie Dominique Rigal, Alexey Lyasota, Irina Kulkova, Jakob Rosenkrantz De Lasson

We demonstrate selective optical coupling of multiple, site controlled semiconductor quantum dots (QDs) to photonic crystal waveguide structures. The impact of the exact position and emission spectrum of the QDs on the coupling efficiency is elucidated. Th ...

2016

Site-Controlled Quantum Dots Coupled to Photonic Crystal Cavities and Waveguides

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

Ieee2016

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

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

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

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

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

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

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

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

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