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Cutting edges for exciton on hybrid perovskites

13 March 2017

Cutting edges for exciton on hybrid perovskites

(Science 2017) A Franco-American researchers team has elucidated the origin of the remarkable performances of devices based on layered perovskites for photovoltaic and light emission. This is based on the spontaneous conversion of electron-hole pairs, also called excitons, into free charge carriers via specific states located on the edges of the thin films used in the devices (...)

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World record for photon capture in micro-resonators

29 March 2016

World record for photon capture in micro-resonators

(Physical Review Letters, mar. 2016) The introduction of a slow-light medium in an optical micro-resonator extends the lifetime of a photon circulating in the device by several orders of magnitude.

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Mohamed Omar SAHNI defends his PhD thesis

1 June 2018

Mohamed Omar SAHNI defends his PhD thesis

« Contribution to the study of techniques for laser spectral narrowing: Application to mode-locked laser diodes used in optical telecommunications », Friday 1st of June 2018, 9:30 am, at ENSSAT (...)

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« Metrology of Optical Frequencies and Compact Frequency Combs »

12 February 2018

« Metrology of Optical Frequencies and Compact Frequency Combs »

Conference with Dr. Vincent RONCIN (LPL), on 12th february 2018 from 10:30 to 12:30, at Enssat-Lannion

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« Photon-phonon interactions in optical microfibers and nanofibers »

8 February 2018

« Photon-phonon interactions in optical microfibers and nanofibers »

Conference with Thibaut SYLVESTRE (Femto-ST), on 8th february 2018 from 14:30 to 15:30, at Enssat-Lannion

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« Quantum cryptography using practical photonic systems »

5 December 2017

« Quantum cryptography using practical photonic systems »

Conference with Eleni DIAMANTI (LIP6), on 5th december 2017 from 14:00 to 16:00, at Enssat-Lannion

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« Silicon photonics for optical communications and mid-IR spectroscopy »

28 November 2017

« Silicon photonics for optical communications and mid-IR spectroscopy »

Conference with Delphine MARRIS-MORINI (C2N), on 28th november 2017 from 10:30 to 12:30, at Enssat-Lannion

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Focus on

Scaling law for excitons in 2D perovskite quantum wells

Spectroscopy, magnetic field, Bethe-Salpeter, multi quantum wells, perovskites
The physics of (...)

Ida LUCCI signs her first paper

Within the Ph.D study supervised by Charles CORNET and co-supervised by Laurent PEDESSEAU at (...)

Design principles for electronic charge transport in solution-processed vertically stacked 2D perovskite quantum wells

Vertical perovskite solar cells
The growth of perovskite multilayers is controlled to enhance (...)

Entropy in halide perovskites

Materials based on halide perovskites have recently revolutionized the field of photovoltaics (...)

ABXPV18 / PEROPTO18:
two international Conferences on Perovskite materials take place in Rennes

Presentation The halide perovskite materials have formed a new class of semiconductors with (...)

Antoine CONGAR signs his first paper

Within his PhD thesis "Study of gallium nitride indium monomode lasers"
In this paper, we (...)

Mohamed Omar SAHNI signs his first paper

Within his PhD thesis "Phase noise in optical sources"
We report on the frequency noise (...)

Current trends in Optical and X-Ray metrologies for emerging technologies (OptoX NANO)

Current trends in Optical and X-Ray metrologies of key enabling nanomaterials/devices for the (...)

Integrated Lasers on Silicon, 1st edition

(iSTE-Elsevier, july 2016) This book presents a didactic presentation of the state of art on lasers for integrated photonics on silicon chips: description of the need for efficient laser sources on silicon, different ways of integration in microprocessors, description of main realizations, monolithic integration, cavity geometries, integration strategies (...)

High-efficiency perovskite solar cells: an entirely new growth alternative and increased stability

(Nature, july 2016) The new perovskite sector for photovoltaics, born in 2012-2013, is entering a second phase after an initial period marked by a tremendous increase in conversion performance records. (...)