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  4. Fabrication of nanoscale lithium niobate waveguides for second-harmonic generation
 
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2015
Journal Article
Title

Fabrication of nanoscale lithium niobate waveguides for second-harmonic generation

Abstract
Nanoscale waveguides are basic building blocks of integrated optical devices. Especially, waveguides made from nonlinear optical materials, such as lithium niobate, allow access to a broad range of applications using second-order nonlinear frequency conversion processes. Based on a lithium niobate on insulator substrate, millimeter-long nanoscale waveguides were fabricated with widths as small as 200 nm. The fabrication was done by means of potassium hydroxide-assisted ion-beam-enhanced etching. The waveguides were optically characterized in the near infrared wavelength range showing phase-matched second-harmonic generation.
Author(s)
Geiss, R.
Saravi, S.
Sergeyev, A.
Diziain, S.
Setzpfandt, F.
Schrempel, Frank  
Grange, R.
Kley, Ernst-Bernhardt
Tünnermann, Andreas  
Pertsch, Thomas  
Journal
Optics Letters  
DOI
10.1364/OL.40.002715
Language
English
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
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