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Counter-propagating parametric interaction with phonon-polaritons in periodically poled KTiOPO4
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics.ORCID iD: 0000-0002-8450-0779
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics.ORCID iD: 0000-0002-4452-0759
KTH, School of Engineering Sciences (SCI), Applied Physics.
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics.
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2017 (English)In: Optics Express, E-ISSN 1094-4087, Vol. 25, no 3, p. 2677-2686Article in journal (Refereed) Published
Abstract [en]

Strongly enhanced backward stimulated polariton scattering (BSPS) is demonstrated in periodically-poled KTiOPO4 (KTP) crystals with a high power-conversion efficiency up to 70%. We study the physical mechanism of such counter-propagating parametric interaction with phonon-polaritons in χ(2) modulated structures. BSPS is a three-wave mixing that is distinguished from backward stimulated Raman scattering (BSRS), while a strong absorption at large polariton wave-vectors can still make BSPS display certain characteristics of BSRS such as self-compression of the Stokes pulse. We also compare BSPS with counter-propagating parametric oscillation in the near- and mid-infrared range, providing an estimation of the fabrication error margin to expect the outcome of their competition in the same device.

Place, publisher, year, edition, pages
Optical Society of America, 2017. Vol. 25, no 3, p. 2677-2686
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-202417DOI: 10.1364/OE.25.002677ISI: 000397314600094PubMedID: 29519109Scopus ID: 2-s2.0-85011634540OAI: oai:DiVA.org:kth-202417DiVA, id: diva2:1076844
Funder
Swedish Research CouncilSwedish Foundation for Strategic Research
Note

QC 20170308

Available from: 2017-02-24 Created: 2017-02-24 Last updated: 2024-03-15Bibliographically approved

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Publisher's full textPubMedScopushttps://doi.org/10.1364/OE.25.002677

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Jang, HoonViotti, Anne-LiseStrömqvist, GustavZukauskas, AndriusCanalias, CarlotaPasiskevicius, Valdas

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