1.
Opt Express
; 32(8): 14321-14333, 2024 Apr 08.
Artículo
en Inglés
| MEDLINE
| ID: mdl-38859381
RESUMEN
This work presents what we believe is a new way to use a CTH:YAG crystal for spontaneous emission instead of laser emission. The spontaneous emission is collected in one main direction thanks to a luminescent concentrator configuration. The CTH:YAG is indirectly LED-pumped by a Ce:YAG delivering 3.5â ms pulses at 10â Hz with an energy of 2 J in the visible (550-650â nm). In a configuration optimized for light extraction, the CTH:YAG luminescent concentrator provides a broadband emission between 1.8 µm and 2.1 µm with a unique combination of power (1 W) and brightness (21.2 W/cm2/sr) that could be useful for short-wave infrared (SWIR) lighting applications.