2022/12/31 by Stephen Tapsak, Tapsak, Stephen, Brielle Hunt +3
Agricultural and Biological Sciences · Earth and Planetary Sciences · Materials Science · #Building materials and conservation #Calcium Carbonate Crystallization and Inhibition #Cephalopods and Marine Biology #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci)
paper · pdf · doi:10.48550/arxiv.2301.03395
openalex publication_date 2022/12/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The decay of luminescence emitted by an activated natural calcite sample after being excited by longwave ultraviolet light (370 nm) has been measured and analyzed. The time evolution of the light intensity did not follow a single exponential decay. Rather, a distribution of decay-times was inferred via the extraction of a fit parameter characterizing the nature of the observed stretched exponential decay, herein referred to as the beta parameter. In conjunction with the average wavelength of the emitted light as well as its average decay-time, the beta parameter may serve as an important predictor of the nature, concentration and spatial homogeneity of the activators (and possible quenchers) within the calcite sample.