7. Scientific Foundations for Integrating Augmented Reality in Laser Diagnostics Education

Laser diagnostics involve inherently invisible or submicroscopic phenomena: tissue scattering, photon absorption, coherent wavefronts, and refractive index changes. These processes are difficult for secondary school students to conceptualize through traditional 2D diagrams or static media. AR fills this gap by allowing embodied, spatial, and real-time visualization of light–tissue interactions.

According to dual coding theory (Paivio, 1991) and cognitive load theory (Sweller et al., 1998), complex scientific processes are better understood when verbal information is paired with dynamic visual representations. AR enables split-attention minimization by embedding visualizations directly into the user’s perceptual field, for example, projecting how a laser beam refracts through layered tissues or showing how polarized light rotates when encountering aligned collagen fibers in tumors. This contextual coupling of spatial and conceptual information significantly improves retention and transfer of knowledge (Cheng & Tsai, 2013).