Beams: Free-space propagation of Gaussian beams, beam spreading, interference of co-and counter-propagating beams at different angles of incidence.

Waveguiding: Directional propagation of guided modes, propagating- and standing waves, codirectional evanescent coupling between adjacent cores.

Facets: Light propagation across the end facets of slab waveguides, total reflection in case of a specific multimode configuration.

Bends: Propagation along curved slab waveguides with different and radii, field/radiation pattern, propagation and attenuation constants.

Crossing: Perpendicular crossing of two slab waveguides, single- and multimode configurations with different core widths.

Photonic crystal waveguide: 90

^{o}-bend in a photonic crystal waveguide, a rectangular lattice of square rods, access waveguides included.
Square microresonator: A circuit with a square microcavity between two bus waveguides, spectral power transmission and
field pattern at resonance and nearby.

Square microcavity: A square microcavity with perpendicular bus waveguides, a resonant waveguide T-junction; power spectrum and field examples.

Rectangular cavities: Configurations with different aspect ratio and orientation, spectral power transmission, field pattern at major and minor resonances.

Add-drop-filter: Two square microcavities, direct coupling and interaction through bus waveguides, add-drop-filter functionality.

High-contrast gratings: Finite corrugated dielectric membranes, normal incidence of Gaussian beams, varying number of periods, 2-D QUEP simulations.

Resonator chain: A sequence of square dielectric cavities, evanescent guided wave excitation at one end, resonant field pattern, spectral amplitudes assigned to the individual cavities.

Letters: Rectangular arrangement of dielectric squares and specific spacers; all pieces of the composite structure resonate at the same frequency.

Microring: Circular microring-resonator, two bus channels, radial fundamental resonances, HCMT model (bend-mode based), spectral transmission.

Microdisk: Circular microdisk-resonator, two bus channels, radial fundamental and first order resonances, QUEP simulations (staircase approximation).

CROW: Short coupled resonator optical waveguide, three coupled micro-rings, straight access channels, HCMT model (bend-mode based), spectral transmission.

Photonic molecule: Symmetric arrangement of three micro-rings, excitation through a slab channel, HCMT analysis (WGM-based), Transmission resonances, supermodes with and without bus.

Bend-straight-couplers: Conventional CMT-analysis (3D) of couplers made of a bent and a straight waveguide; basis: WMM modes for straight channels.

Periodic waveguide: Infinite regular sequence of high-contrast dielectric squares, 1-D periodicity, Floquet-Bloch modes, band structure diagram.

Cross-strip interferometer: Laterally unguided, vertically guided light traverses a rib of specific dimensions, a polarizer configuration.

Circulator: Concept for a polarization-independent integrated optical circulator, 3D, unidirectional magnetooptic polarization converters combined with polarization splitters.

*— examples in the manual of the Metric simulation tools —-*

Waveguide: Light propagation along a symmetric three layer slab waveguide.

Coupling: Evanescent interaction between two identical parallel cores, periodic beating pattern.

Facet: Rectangular slab waveguide facet, guided wave reflection and divergence of transmitted waves.

Corner: Sharp 90

^{o}corner in a slab waveguide, a lot of radiative loss.
T-junction: Perpendicular slab waveguides, partial lateral guided power transmission and radiation loss.

Crossing: intersection of two cores at 90

^{o}, guided wave reflection, transmission, lateral routing, and radiation loss.
Square microresonator: A square dielectric cavity with two perpendicular bus channels, a resonant configuration.

Hole: Light propagation across a single hole in a nonsymmetric slab waveguide, radiation pattern.

Bragg grading: A deeply etched, short waveguide Bragg grating (4 periods), reflector configuration.

Defect cavity: A short, deeply etched waveguide Bragg grating with central defect, transmission resonance.

Photonic crystal waveguide: A missing row in a square lattice of rods; the light enters and exits the photonic crystal region through conventional waveguides.

PC waveguide bend: 90

^{o}bend in a 2D photonic crystal waveguide, input and output via conventional waveguides.
Square microresonator: Resonance in a square dielectric cavity with two parallel port waveguides.

*— examples in the WMM-manual —*

Waveguide coupling: Evanescent interaction between two parallel channels, intensity distribution on the cross section, animation of mode beating with propagation distance.

Multimode interference: A wide multimode rib, localized excitation, multimode interference, animation of the quasi-periodic focusing pattern with propagation distance.