Abstract
Lasing due to pair emission of exchange coupled Cr3+ ions in the LaCr0.5Ga0.5O3 perovskite system is reported by M. S. Ramachandra Rao, K. Sethupathi, and co-workers in article number 2000519. A laser threshold value of 73 W cm−2 is obtained at room temperature and a better threshold of 35 W cm−2 is observed near 100 K. The pair emission is confirmed with the help of lifetime and electron spin resonance spectroscopy analysis.
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