Quasi-phase-matched frequency conversion in KNbO3 structures consisting of 90-degree ferroelectric domains
2005 (English)In: Applied physics. B, Lasers and optics (Print), ISSN 0946-2171, E-ISSN 1432-0649, Vol. 81, 761-763 p.Article in journal (Refereed) Published
Periodic 90° domain structure with 18.6 μm periodicity was fabricated by applying a 200 V/mm electric field over (1̄01)-cut KNbO3 plate. The blue light generation by quasi-phase-matched frequency doubling in this periodic 90° domain structure is demonstrated. The 90° domain structure completely compensates for a Poynting vector walk-off of the second-harmonic beam. Moreover, these structures exhibit amphoteric Poynting vector refraction properties, i.e., the refraction can be negative or positive depending on the angle of incidence at the 90° domain boundary.
Place, publisher, year, edition, pages
2005. Vol. 81, 761-763 p.
periodically-poled linbo3, optical parametric oscillation, orthorhombic knbo3; potassium niobate, single-crystals, refractive-indexes, fabrication, generation
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-6113DOI: 10.1007/s00340-005-1956-5ISI: 000232792500004ScopusID: 2-s2.0-27244448969OAI: oai:DiVA.org:kth-6113DiVA: diva2:10731
QC 201008302006-09-142006-09-142011-10-20Bibliographically approved