@misc{Błahut_Marek_Self-imaging_2009, author={Błahut, Marek and Froniewski, Dawid}, access={Dla wszystkich w zakresie dozwolonego użytku}, address={Wrocław}, year={2009}, description={Optica Applicata, Vol. 39, 2009, nr 3, s. 445-458}, language={eng}, abstract={The paper presents an analysis of self-imaging phenomena in gradient multimode interference (MMI) structures produced by K+–Na+ ion exchange in glass. This investigation concerned curved MMI structures with various geometries – for the linear, concave function described by an exponential function, and the convex structure connected with a cosine course. The relations derived characterizing the relative shortening of the length of propagation for N-fold images have been confirmed by numerical simulations using the beam propagation method (BPM) of symmetrically excited gradient splitters 1×2.}, title={Self-imaging effects in curved gradient index multimode interference structures made by K+–Na+ ion exchange}, type={artykuł}, contributor={Gaj, Miron. Redakcja}, contributor={Urbańczyk, Wacław. Redakcja}, rights={Wszystkie prawa zastrzeżone (Copyright)}, publisher={Oficyna Wydawnicza Politechniki Wrocławskiej}, keywords={optyka, multimode interference structures, ion-exchange}, }