TY - JOUR
T1 - Temperature dependence of the R1 linewidth in Al 2O3:Mn4+
T2 - A spectral hole-burning and FLN study
AU - Riesen, Hans
AU - Monks-Corrigan, Thomas
AU - Manson, Neil B.
PY - 2011/10/27
Y1 - 2011/10/27
N2 - The temperature dependence of the R1 linewidth in Al 2O3:Mn4+ is reported. Transient holes broaden rapidly from 2.5 to 40 K due to the one-phonon process between the E and 2A levels of the 2E excited state. The linewidth varies from 3 MHz at 2.5 K to 2640 GHz at 294 K and the line shifts by -1440 GHz. Above 50 K the two-phonon Raman process becomes dominant. The quadratic electron-phonon coupling constant is larger for Al2O3:Mn4+ compared to ruby, resulting in a stronger phonon sideband in Al 2O3:Mn4+. The best description of the linewidth data are yielded by a model using pseudo-local modes.
AB - The temperature dependence of the R1 linewidth in Al 2O3:Mn4+ is reported. Transient holes broaden rapidly from 2.5 to 40 K due to the one-phonon process between the E and 2A levels of the 2E excited state. The linewidth varies from 3 MHz at 2.5 K to 2640 GHz at 294 K and the line shifts by -1440 GHz. Above 50 K the two-phonon Raman process becomes dominant. The quadratic electron-phonon coupling constant is larger for Al2O3:Mn4+ compared to ruby, resulting in a stronger phonon sideband in Al 2O3:Mn4+. The best description of the linewidth data are yielded by a model using pseudo-local modes.
UR - http://www.scopus.com/inward/record.url?scp=80054742894&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2011.09.039
DO - 10.1016/j.cplett.2011.09.039
M3 - Article
SN - 0009-2614
VL - 515
SP - 241
EP - 244
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -