“…[7] Owing to their readily tuneable emission properties, nanocrystal quantum dots (QDs) have been incorporated into 3D opal PCs as an active medium. [3,6,8,9] Radiation dynamics and spectral modification of spontaneous emission [3] have been investigated with QDs emitting visible light. However, experimental study on emission control of QDs with 3D PCs in the near-infrared (NIR) wavelength region, which holds a key to next generation photonic devices for telecommunications, [10][11][12][13] has not yet been demonstrated.…”