• • MgO:0.008Cr3+ exhibits a broad ML FWHM of 209 nm centered at 809 nm, enabling comprehensive spectral information for organic and biological matter analysis, which is critical for nondestructive quality assessment in food and agriculture.
• • Detectable ML emission at a stress threshold as low as 1 N, significantly reducing the mechanical energy required for practical stress imaging and enabling sensitive detection in biomedical and structural monitoring applications.
• • Self-recoverable ML without ultraviolet preirradiation, eliminating the need for costly and bulky UV sources, thereby reducing operational complexity and enabling continuous, real-time monitoring in field-deployable devices.
• • Demonstrated application in wine quality assessment and simulated biological tissue penetration, validating the material's potential for noninvasive diagnostics and quality control in clinical and industrial settings.