Two-photon injection of polaritons in semiconductor microstructures

Godefroy Leménager; Ferruccio Pisanello; Jacqueline Bloch; Alexey Kavokin; Alberto Amo; Aristide Lemaitre; Elisabeth Galopin; Isabelle Sagnes; Massimo De Vittorio; Elisabeth Giacobino; Alberto Bramati

doi:10.1364/OL.39.000307

Two-photon injection of polaritons in semiconductor microstructures

Godefroy Leménager
, Ferruccio Pisanello
, Jacqueline Bloch
, Alexey Kavokin
, Alberto Amo
, Aristide Lemaitre
, Elisabeth Galopin
, Isabelle Sagnes
, Massimo De Vittorio
, Elisabeth Giacobino
, Alberto Bramati

École Polytechnique

Research output: Contribution to journal › Article › peer-review

Abstract

We experimentally demonstrate that two-photon pumping of "dark" excitons in quantum wells embedded in semiconductor microcavities can result in exciton-polariton injection and photon lasing. In the case of a semiconductor micropillar pumped at half of the exciton frequency, we observe a clear threshold behavior, characteristic of the vertical cavity surface emitting laser transition. These results are interpreted in terms of stimulated emission of terahertz photons, which allows for conversion of "dark" excitons into exciton-polaritons.

Original language	English
Pages (from-to)	307-310
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	2
DOIs	https://doi.org/10.1364/OL.39.000307
Publication status	Published - 15 Jan 2014

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title = "Two-photon injection of polaritons in semiconductor microstructures",

abstract = "We experimentally demonstrate that two-photon pumping of {"}dark{"} excitons in quantum wells embedded in semiconductor microcavities can result in exciton-polariton injection and photon lasing. In the case of a semiconductor micropillar pumped at half of the exciton frequency, we observe a clear threshold behavior, characteristic of the vertical cavity surface emitting laser transition. These results are interpreted in terms of stimulated emission of terahertz photons, which allows for conversion of {"}dark{"} excitons into exciton-polaritons.",

author = "Godefroy Lem{\'e}nager and Ferruccio Pisanello and Jacqueline Bloch and Alexey Kavokin and Alberto Amo and Aristide Lemaitre and Elisabeth Galopin and Isabelle Sagnes and \{De Vittorio\}, Massimo and Elisabeth Giacobino and Alberto Bramati",

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doi = "10.1364/OL.39.000307",

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T1 - Two-photon injection of polaritons in semiconductor microstructures

AU - Leménager, Godefroy

AU - Pisanello, Ferruccio

AU - Bloch, Jacqueline

AU - Kavokin, Alexey

AU - Amo, Alberto

AU - Lemaitre, Aristide

AU - Galopin, Elisabeth

AU - Sagnes, Isabelle

AU - De Vittorio, Massimo

AU - Giacobino, Elisabeth

AU - Bramati, Alberto

PY - 2014/1/15

Y1 - 2014/1/15

N2 - We experimentally demonstrate that two-photon pumping of "dark" excitons in quantum wells embedded in semiconductor microcavities can result in exciton-polariton injection and photon lasing. In the case of a semiconductor micropillar pumped at half of the exciton frequency, we observe a clear threshold behavior, characteristic of the vertical cavity surface emitting laser transition. These results are interpreted in terms of stimulated emission of terahertz photons, which allows for conversion of "dark" excitons into exciton-polaritons.

AB - We experimentally demonstrate that two-photon pumping of "dark" excitons in quantum wells embedded in semiconductor microcavities can result in exciton-polariton injection and photon lasing. In the case of a semiconductor micropillar pumped at half of the exciton frequency, we observe a clear threshold behavior, characteristic of the vertical cavity surface emitting laser transition. These results are interpreted in terms of stimulated emission of terahertz photons, which allows for conversion of "dark" excitons into exciton-polaritons.

UR - https://www.scopus.com/pages/publications/84897460184

U2 - 10.1364/OL.39.000307

DO - 10.1364/OL.39.000307

M3 - Article

C2 - 24562133

AN - SCOPUS:84897460184

SN - 0146-9592

VL - 39

SP - 307

EP - 310

JO - Optics Letters

JF - Optics Letters

IS - 2

ER -

Two-photon injection of polaritons in semiconductor microstructures

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