Absorption and circular-dichroism spectra of LaBGeO5 crystal doped with Pr3+ and Ho3+ ions

► Absorption and CD spectra of LaBGeO5 crystal doped with Pr3+ and Ho3+ ions. ► We measure the spectra at 8 K in the range 300-900 K. ► Mechanism of intensity borrowing from the parity-allowed transitions has occurred.