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- Barrett, LauraKTH,Laserfysik (author)
High-contrast coercive field engineering for periodic poling of RbKTiOPO4 with Ba2+/K+ ion-exchange
- Article/chapterEnglish2024
Publisher, publication year, extent ...
- Optica Publishing Group,2024
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:kth-345883
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-345883URI
- https://doi.org/10.1364/OE.513734DOI
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- Language:English
- Summary in:English
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- QC 20240429
- We investigate a new method of coercive field engineering for periodic poling of RbKTiOPO4 (RKTP). By ion exchanging RKTP in a molten salt containing 7 mol% Ba(NO3)2 and 93 mol% KNO3 we achieve more than an order of magnitude difference in polarization switching time between the exchanged and non-exchanged regions. This method is used to fabricate periodic gratings of 2.92 µm in 1 mm thick bulk RKTP for second harmonic generation at 779 nm with a normalized conversion efficiency of 2%/Wcm. We show that the poled domain structures are stable at 300 °C, and that there is no bulk refractive index modification associated with the periodic ion exchange.
Subject headings and genre
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
Added entries (persons, corporate bodies, meetings, titles ...)
- Lee, Cherrie,1992-KTH,Biomedicinsk fysik och röntgenfysik(Swepub:kth)u19az36q (author)
- Zukauskas, AndriusKTH,Laserfysik(Swepub:kth)u12rbqei (author)
- Laurell, Fredrik,professor,1957-KTH,Laserfysik(Swepub:kth)u1z0sdyv (author)
- Canalias, CarlotaKTH,Biomedicinsk fysik och röntgenfysik(Swepub:kth)u1gtitq9 (author)
- KTHLaserfysik (creator_code:org_t)
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- In:Optics Express: Optica Publishing Group32:8, s. 14252-142601094-4087
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