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Counter-propagating...
Counter-propagating parametric interaction with phonon-polaritons in periodically poled KTiOPO4
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- Jang, Hoon (author)
- KTH,Laserfysik
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- Viotti, Anne-Lise (author)
- KTH,Laserfysik
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- Strömqvist, Gustav (author)
- KTH,Tillämpad fysik
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- Zukauskas, Andrius (author)
- KTH,Laserfysik
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- Canalias, Carlota (author)
- KTH,Laserfysik
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- Pasiskevicius, Valdas (author)
- KTH,Laserfysik
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(creator_code:org_t)
- Optical Society of America, 2017
- 2017
- English.
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In: Optics Express. - : Optical Society of America. - 1094-4087. ; 25:3, s. 2677-2686
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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