TY - JOUR T1 - Photoluminescence upconversion at interfaces driven by a sequential two-photon absorption mechanism JO - Physical Review B UR - https://eprints.whiterose.ac.uk/id/eprint/102413 UR - http://dx.doi.org/10.1103/PhysRevB.93.235303 PY - 2016/06/09 AU - Hylton NP AU - Hinrichsen TF AU - Vaquero-Stainer AR AU - Yoshida M AU - Pusch A AU - Hopkinson M AU - Hess O AU - Phillips CC AU - Ekins-Daukes NJ ED - DO - DOI: 10.1103/PhysRevB.93.235303 PB - American Physical Society VL - 93 IS - 23 Y2 - 2025/11/28 ER -