Publications by Dmitri Boiko | EPFL Graph Search

Static and dynamic properties of multi-section InGaN-based laser diodes

Nicolas Grandjean, Jean-François Carlin, Julien Dorsaz, Antonino Francesco Castiglia, Jean-Michel Jacques Lamy, Dmitri Boiko, Luca Alex Milo Sulmoni, Xi Zeng

We have studied multi-section InGaN multiple-quantum-well (MQW) laser diodes grown on c-plane freestanding GaN substrate consisting of an absorber section (AS) and an amplifier gain section. As a result of the interplay between external bias applied to the ...

Amer Inst Physics2012

Effect of applied bias voltage on the static and dynamic characteristics of self-pulsating multi-section InGaN-based laser diode

Nicolas Grandjean, Jean-François Carlin, Jean-Michel Jacques Lamy, Dmitri Boiko, Luca Alex Milo Sulmoni, Xi Zeng

Ieee2012

Optical bistability in InGaN-based multisection laser diodes

Nicolas Grandjean, Jean-François Carlin, Julien Dorsaz, Dmitri Boiko, Luca Alex Milo Sulmoni

Optical bistability is observed in cw-operating InGaN-based laser diodes including a saturable absorber (SA) section. The dependence of the light-current hysteresis on the SA section length and reverse bias (VSA) has been studied. An analytical approach is ...

AIP American Institute of Physics2011

Hybrid polymer microlens arrays with high numerical apertures fabricated using simple ink-jet printing technique

Jürgen Brugger, Edoardo Charbon, Vahid Fakhfouri, Dmitri Boiko, Joo Yeon Kim, Nils Benedict Brauer

Microlens arrays fabricated by a direct ink-jet printing of UV-curable hybrid polymer are reported. A periodic pattern of polymer drops was ink-jet printed on the surface-treated glass substrate and cured in the UV-light. Using this simple technique, we de ...

2011

Fast Fluorescence Dynamics in Non-ratiometric Calcium Indicators

Edoardo Charbon, Carl Petersen, Cristiano Niclass, Marek Gersbach, Dmitri Boiko

2009

On the Application of a Monolithic Array for Detecting Intensity-Correlated Photons Emitted by Different Source Types

Edoardo Charbon, Dmitri Boiko

It is not widely appreciated that many subtleties are involved in the accurate measurement of intensity-correlated photons; even for the original experiments of Hanbury Brown and Twiss (HBT). Using a monolithic 4x4 array of single-photon avalanche diodes ( ...

2009

Experiments Supporting the Concept of a g(2) Camera

Edoardo Charbon, Cristiano Niclass, Dmitri Boiko

2008

Photonic lattice of coupled microcavities in nonpermanent gravitational field produced by rotation

Dmitri Boiko

Rotation-induced splitting of the otherwise degenerate photonic bands is predicted for a two-dimensional photonic crystal made of evanescently coupled microcavities. The symmetry-broken energy splitting is similar to the Zeeman splitting of atomic levels o ...

Electromagnetics Acad, 777 Concord Avenue, Ste 207, Cambridge, Ma 02138 Usa2008

A Quantum Imager for Intensity Correlated Photons

Edoardo Charbon, Cristiano Niclass, Dmitri Boiko

2008

Inkjet Printing of SU-8; A Case Study for Microlenses

Jürgen Brugger, Edoardo Charbon, Alcherio Martinoli, Dmitri Boiko, Vahid Fakhfouri, Grégory Mermoud, Joo Yeon Kim, Nicolas Cantale

This paper describes a novel method to fabricate polymer MEMS based on the inkjet printing of SU-8, with a special emphasis on integrated micro-optical lens arrays. Inkjet control parameters are optimized in order to enable a stable and reproducible ejecti ...

2008