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Highly efficient stimulated Raman scattering of picosecond pulses in KTiOPO4
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics.ORCID iD: 0000-0002-2508-391X
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics.ORCID iD: 0000-0003-2070-9167
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics.ORCID iD: 0000-0001-7688-1367
2006 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 88, no 4Article in journal (Refereed) Published
Abstract [en]

High-efficiency picosecond stimulated Raman scattering (SRS) by phonon-polaritons has been observed in KTiOPO4 in a single pass through a 10 mm long crystal. For pulses longer than 10 ps, the SRS waves formed a symmetric pattern consisting of four distinct beams: SRS Stokes and anti-Stokes wavelengths originating both from the near-infrared pump and from the scattering of the second harmonic of the pump. At peak intensities above 10 GW/cm(2) and pulse length of 1.5 ps, the SRS character changes into what can be called runaway Raman scattering with efficiencies exceeding 50% and Raman gain spreading over 60 THz.

Place, publisher, year, edition, pages
2006. Vol. 88, no 4
Keyword [en]
phosphate, spectrum, crystal
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URN: urn:nbn:se:kth:diva-15397DOI: 10.1063/1.2166683ISI: 000234968600010Scopus ID: 2-s2.0-31544459486OAI: oai:DiVA.org:kth-15397DiVA: diva2:333438
Note
QC 20100525 QC 20120302Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Pasiskevicius, ValdasCanalias, CarlotaLaurell, Fredrik

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