Abstract

We report the first measurements, to our knowledge, of the modification of spontaneous emission rates of ${\mathrm{Eu}}^{3+}$ ions in the visible region owing to an absorbing medium. Precise levels of the absorption coefficient are introduced by codoping with different amounts of ${\mathrm{Nd}}^{3+}$. We use a binary glass system $\mathrm{PbO}–{\mathrm{B}}_2{\mathrm{O}}_3$ as the host, the compositional variation of which leads to a change in the real part of the refractive index. Measured lifetimes are found to follow the real cavity model, and the data are analyzed by the model proposed by Scheel et al. [Phys. Rev. A 60, 4094 (1999) ]. We give estimates of the parameter that is related to the radius of the cavity around ${\mathrm{Eu}}^{3+}$.

© 2005 Optical Society of America

Superbroadband 1310 nm emission from bismuth and tantalum codoped germanium oxide glasses

Mingying Peng, Jianrong Qiu, Danping Chen, Xiangeng Meng, and Congshan Zhu
Opt. Lett. 30(18) 2433-2435 (2005)

Large negative Goos–Hänchen shift from a weakly absorbing dielectric slab

Li-Gang Wang, Hong Chen, and Shi-Yao Zhu
Opt. Lett. 30(21) 2936-2938 (2005)

Coupling of spontaneous emission from GaN–AlN quantum dots into silver surface plasmons

Arup Neogi, Hadis Morkoç, Takamasa Kuroda, and Atsushi Tackeuchi
Opt. Lett. 30(1) 93-95 (2005)

Spontaneous emission in nanoscopic dielectric particles

Lavinia Rogobete, Hannes Schniepp, Vahid Sandoghdar, and Carsten Henkel
Opt. Lett. 28(19) 1736-1738 (2003)

Quantum emission dynamics from a single quantum dot in a planar photonic crystal nanocavity

S. Hughes
Opt. Lett. 30(11) 1393-1395 (2005)