Ickeoptiska

Ickeoptiska is a term used in Swedish-language scientific and technical contexts to describe phenomena, instruments, or techniques that do not rely on optical radiation or the manipulation of photons in the visible range. The concept is typically employed to distinguish non-optical methods from optical ones in fields such as physics, materials science, biomedical imaging, and engineering.

Common examples of ickeoptiska approaches include electron microscopy (scanning and transmission), X-ray imaging and computed tomography, neutron imaging, ultrasound imaging, magnetic resonance imaging, and electrical impedance tomography. These modalities obtain information about structure, composition, or function through interactions other than visible-light photons, such as electron–matter interactions, X-ray attenuation, neutron scattering, acoustic waves, or nuclear magnetic resonance.

The term serves as a practical categorization aid in interdisciplinary research and education, where multiple imaging or sensing modalities are used. It highlights differences in resolution, penetration, contrast mechanisms, safety considerations, and instrumentation between non-optical and optical techniques. While not a formal scientific discipline, ickeoptiska is encountered in reviews, textbooks, and discussions that compare modality choices for experiments, diagnostics, or inspection tasks.

See also: Optical imaging, non-optical imaging modalities, multimodal imaging.