Angleresolved

Angleresolved is a term used in science to describe data, instruments, or analyses that resolve information as a function of angle. It is commonly treated as a variant of angle-resolved, though some authors write it as a single word to emphasize the angular dimension of resolution. The term is especially prevalent in physics, materials science, and optical imaging.

In practice, angle-resolved data separate signals by the angle at which particles are emitted, scattered, or imaged relative to a reference axis. This yields angular distributions that map momentum, directionality, or diffraction features. A canonical example is angle-resolved photoemission spectroscopy (ARPES), where the detected photoelectron intensity I(E, theta) depends on kinetic energy E and emission angle theta, revealing electronic band structure and dispersion relations.

Implementation relies on detectors and optics with angular discrimination, such as hemispherical electron analyzers, angle-sensitive detectors, and rotation stages. Data are often presented as slices or maps in angle–energy or angle–momentum space, requiring calibration for angular acceptance, instrumental resolution, and geometric factors.

Relationship to related terms: the phrase is not universally standardized; in many contexts researchers prefer angle-resolved or angle-resolved spectroscopy. The usage may vary across disciplines, and some sources may treat “angleresolved” as a stylistic variant rather than a distinct concept.

See also:

- Angle-resolved spectroscopy

- Angle-resolved photoemission spectroscopy (ARPES)

- Angular resolution

- Momentum-space mapping