Study of ortho-to-paraexciton conversion in Cu${}_2$O by excitonic Lyman spectroscopy

M. Kubouchi, K. Yoshioka, R. Shimano +2

Using time-resolved $1s$-$2p$ excitonic Lyman spectroscopy, we study the orthoexciton-to-paraexcitons transfer, following the creation of a high density population of ultracold $1s…