Giant Rydberg excitons in Cu$_{2}$O probed by photoluminescence excitation spectroscopy

Autor:	Versteegh, Marijn A. M., Steinhauer, Stephan, Bajo, Josip, Lettner, Thomas, Soro, Ariadna, Romanova, Alena, Gyger, Samuel, Schweickert, Lucas, Mysyrowicz, André, Zwiller, Val
Rok vydání:	2021
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science Physics - Optics Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.104.245206
Popis:	Rydberg excitons are, with their ultrastrong mutual interactions, giant optical nonlinearities, and very high sensitivity to external fields, promising for applications in quantum sensing and nonlinear optics at the single-photon level. To design quantum applications it is necessary to know how Rydberg excitons and other excited states relax to lower-lying exciton states. Here, we present photoluminescence excitation spectroscopy as a method to probe transition probabilities from various excitonic states in cuprous oxide, and we show giant Rydberg excitons at $T=38$ mK with principal quantum numbers up to $n=30$, corresponding to a calculated diameter of 3 $\mu$m. Comment: 11 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2105.07942 Zobrazit plný text záznamu View this record from Arxiv