光电子快报(英文版), 2016, 12 (1): 47, Published Online: Oct. 12, 2017
Room-temperature light emission from an airbridge double-heterostructure microcavity of Er-doped Si photonic crystal
Abstract
We experimentally demonstrate an efficient enhancement of luminescence from two-dimensional (2D) hexagonal photonic crystal (PC) airbridge double-heterostructure microcavity with Er-doped silicon (Si) as light emitters on siliconon- insulator (SOI) wafer at room temperature. A single sharp resonant peak at 1 529.6 nm dominates the photoluminescence (PL) spectrum with the pumping power of 12.5 mW. The obvious red shift and the degraded quality factor (Q-factor) of resonant peak appear with the pumping power increasing, and the maximum measured Q-factor of 4 905 is achieved at the pumping power of 1.5 mW. The resonant peak is observed to shift depending on the structural parameters of PC, which indicates a possible method to control the wavelength of enhanced luminescence for Si-based light emitters based on PC microcavity.
WANG Yue, AN Jun-ming, WU Yuan-da, HU Xiong-wei. Room-temperature light emission from an airbridge double-heterostructure microcavity of Er-doped Si photonic crystal[J]. 光电子快报(英文版), 2016, 12(1): 47.