# Basic tutorials

- [Nanowire](/freepaths/basic-tutorials/nanowire.md): Silicon nanowire at 300 K
- [Phononic crystal](/freepaths/basic-tutorials/phononic-crystal.md): Square array of hole in a thin plate at 4 K
- [Electrons in holey membranes](/freepaths/basic-tutorials/electrons-in-holey-membranes.md): Example of electrical conductivity simulations for a membrane with holes
- [Parabolic lens](/freepaths/basic-tutorials/parabolic-lens.md): Collimation and focusing using parabolic lenses
- [Thermal gradients](/freepaths/basic-tutorials/thermal-gradients.md): How to create thermal gradients in different directions
- [Scattering map](/freepaths/basic-tutorials/scattering-map.md)
- [Animations](/freepaths/basic-tutorials/animations.md): Creating animations of phonon trajectories
- [Thin layers](/freepaths/basic-tutorials/thin-layers.md): Thin layers of another material in the crystal