Supersonic exciton gratings: coherent inter-polariton scattering in semiconductor microcavities

Dan Birkedal; Lyssenko Vadim; Jørn Märcher Hvam

doi:10.1109/QELS.2002.1031395

Supersonic exciton gratings: coherent inter-polariton scattering in semiconductor microcavities

Dan Birkedal
, Lyssenko Vadim
, Jørn Märcher Hvam

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

We report on a coherent nonlinear phenomenon in a semiconductor microcavity (SMC), which has no parallel for QW excitons. When two different polariton modes of the SMC are impulsively excited they undergo normal mode oscillations (NMOs) with coherent energy exchange between the exciton and the cavity mode. In our experiment the two polaritons are excited with slightly different angles resulting in a travelling wave exciton grating. When a test polariton mode is excited it will scatter in the travelling grating producing amplitude modulation sidebands. This phenomenon produces a transient four-wave mixing (TFWM) signal, which is shifted in frequency from that of the test beam by the NMO frequency, in our case, in the THz range corresponding to a grating velocity = 1 /spl times/ 10/sup 7/ m/s, which is four orders of magnitude larger than the sound velocity. The sample under investigation is a GaAs/AlGaAs /spl lambda/ cavity with a single 25 nm GaAs QW at the center.

Original language	English
Title of host publication	Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest.
Publisher	IEEE
Publication date	2002
Pages	260-261
ISBN (Print)	15-57-52707-5
DOIs	https://doi.org/10.1109/QELS.2002.1031395
Publication status	Published - 2002
Event	2002 Quantum Electronics and Laser Science Conference - Long Beach, CA, United States Duration: 19 May 2002 → 22 May 2002 http://www.opticsinfobase.org/search.cfm?meetingid=19&year=2002

Conference

Conference	2002 Quantum Electronics and Laser Science Conference
Country/Territory	United States
City	Long Beach, CA
Period	19/05/2002 → 22/05/2002
Internet address	http://www.opticsinfobase.org/search.cfm?meetingid=19&year=2002

Bibliographical note

Copyright: 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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title = "Supersonic exciton gratings: coherent inter-polariton scattering in semiconductor microcavities",

abstract = "We report on a coherent nonlinear phenomenon in a semiconductor microcavity (SMC), which has no parallel for QW excitons. When two different polariton modes of the SMC are impulsively excited they undergo normal mode oscillations (NMOs) with coherent energy exchange between the exciton and the cavity mode. In our experiment the two polaritons are excited with slightly different angles resulting in a travelling wave exciton grating. When a test polariton mode is excited it will scatter in the travelling grating producing amplitude modulation sidebands. This phenomenon produces a transient four-wave mixing (TFWM) signal, which is shifted in frequency from that of the test beam by the NMO frequency, in our case, in the THz range corresponding to a grating velocity = 1 /spl times/ 10/sup 7/ m/s, which is four orders of magnitude larger than the sound velocity. The sample under investigation is a GaAs/AlGaAs /spl lambda/ cavity with a single 25 nm GaAs QW at the center.",

author = "Dan Birkedal and Lyssenko Vadim and Hvam, \{J{\o}rn M{\"a}rcher\}",

note = "Copyright: 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 2002 Quantum Electronics and Laser Science Conference, QELS 2002 ; Conference date: 19-05-2002 Through 22-05-2002",

year = "2002",

doi = "10.1109/QELS.2002.1031395",

language = "English",

isbn = "15-57-52707-5",

pages = "260--261",

booktitle = "Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest.",

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address = "United States",

url = "http://www.opticsinfobase.org/search.cfm?meetingid=19\&year=2002",

}

Birkedal, D, Vadim, L & Hvam, JM 2002, Supersonic exciton gratings: coherent inter-polariton scattering in semiconductor microcavities. in Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest.. IEEE, pp. 260-261, 2002 Quantum Electronics and Laser Science Conference, Long Beach, CA, United States, 19/05/2002. https://doi.org/10.1109/QELS.2002.1031395

Supersonic exciton gratings: coherent inter-polariton scattering in semiconductor microcavities. / Birkedal, Dan; Vadim, Lyssenko; Hvam, Jørn Märcher.
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest.. IEEE, 2002. p. 260-261.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Supersonic exciton gratings: coherent inter-polariton scattering in semiconductor microcavities

AU - Birkedal, Dan

AU - Vadim, Lyssenko

AU - Hvam, Jørn Märcher

N1 - Copyright: 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 2002

Y1 - 2002

N2 - We report on a coherent nonlinear phenomenon in a semiconductor microcavity (SMC), which has no parallel for QW excitons. When two different polariton modes of the SMC are impulsively excited they undergo normal mode oscillations (NMOs) with coherent energy exchange between the exciton and the cavity mode. In our experiment the two polaritons are excited with slightly different angles resulting in a travelling wave exciton grating. When a test polariton mode is excited it will scatter in the travelling grating producing amplitude modulation sidebands. This phenomenon produces a transient four-wave mixing (TFWM) signal, which is shifted in frequency from that of the test beam by the NMO frequency, in our case, in the THz range corresponding to a grating velocity = 1 /spl times/ 10/sup 7/ m/s, which is four orders of magnitude larger than the sound velocity. The sample under investigation is a GaAs/AlGaAs /spl lambda/ cavity with a single 25 nm GaAs QW at the center.

AB - We report on a coherent nonlinear phenomenon in a semiconductor microcavity (SMC), which has no parallel for QW excitons. When two different polariton modes of the SMC are impulsively excited they undergo normal mode oscillations (NMOs) with coherent energy exchange between the exciton and the cavity mode. In our experiment the two polaritons are excited with slightly different angles resulting in a travelling wave exciton grating. When a test polariton mode is excited it will scatter in the travelling grating producing amplitude modulation sidebands. This phenomenon produces a transient four-wave mixing (TFWM) signal, which is shifted in frequency from that of the test beam by the NMO frequency, in our case, in the THz range corresponding to a grating velocity = 1 /spl times/ 10/sup 7/ m/s, which is four orders of magnitude larger than the sound velocity. The sample under investigation is a GaAs/AlGaAs /spl lambda/ cavity with a single 25 nm GaAs QW at the center.

U2 - 10.1109/QELS.2002.1031395

DO - 10.1109/QELS.2002.1031395

M3 - Article in proceedings

SN - 15-57-52707-5

SP - 260

EP - 261

BT - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest.

PB - IEEE

T2 - 2002 Quantum Electronics and Laser Science Conference

Y2 - 19 May 2002 through 22 May 2002

ER -

Supersonic exciton gratings: coherent inter-polariton scattering in semiconductor microcavities

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