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Theoretical integrated optics / photonics K. R. Hiremath, O. V. Ivanova, T. M. Koster, M. Maksimovic, C. G. H. Roeloffzen, H. P. Uranus, L. Zhuang, R. Stoffer,
 

Summary: Theoretical integrated optics / photonics
K. R. Hiremath, O. V. Ivanova, T. M. Koster, M. Maksimovic, C. G. H. Roeloffzen, H. P. Uranus, L. Zhuang, R. Stoffer,
E. F. Franchimon, S. M. Reijn, A. M. Averkamp, E. van Groesen, P. V. Lambeck, H. J. W. M. Hoekstra, and M. Hammer.
Designing, implementing, refining, and assessing efficient modelling schemes for linear and nonlinear optical problems
constitutes one primary aim of our research. The Maxwell equations of classical electrodynamics are to be solved for
a variety of structures and devices from the fields of guided wave / integrated optics or, more general, photonics. Our
approaches are typically a combination of -- necessarily approximate -- analytical and numerical methods, such that they
lead to accurate, moderately versatile computational schemes that are sufficiently efficient for purposes of practical device
design. Insight in the physical phenomena related to the light propagation on the basis of the simulation tools is a second
aim, as well as, based on this understanding, the conceptual design of optical devices for specific technical applications,
typically in the areas of optical telecommunications or optical sensors. Some recent research topics are:
Hybrid coupled mode theory
A general view on coupled mode methods could be obtained by restricting functionals for scattering / Helmholtz problems
to coupled-mode field templates, where the amplitude functions are discretized in terms of finite elements [1]. Beyond
examples like evanescently coupled and corrugated waveguides, where conventional variants of CMT are applicable, the
quite versatile, uniform implementation [2] covers also structures that were formerly not treatable in the framework of CMT
approaches, including so far waveguide crossings [1], chains of square resonators [1, 3], and composite circuits of ring
resonators [4, 5].
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Source: Al Hanbali, Ahmad - Department of Applied Mathematics, Universiteit Twente
Twente, Universiteit - Department of Science and Technology, Optical Techniques Group

 

Collections: Engineering