AlInP-based rolled-up microtube resonators with colloidal nanocrystals operating in the visible spectral range

作者：Strelow Ch^*; Kietzmann S; Schramm A; Seher R; Penttinen J P; Hakkarainen T V; Mews A; Kipp T

来源：Applied Physics Letters, 2012, 101(11): 113114.

DOI：10.1063/1.4752449

We report on the realization of AlInP rolled-up microtubes that can be used as high refractive index optical resonators operating in the visible spectral range down to a wavelength of at least 530 nm. Furthermore, colloidal CdSe/CdS/ZnS core-shell-shell nanocrystals were deposited close to the microtube wall by fluid filling of the microtube and subsequent evaporation of the solvent. The optical modes of the microtube resonator are excited via coupling of the nanocrystals to the evanescent fields of the modes. By embedding the nanocrystal emitters in a polymer film, an enhanced nanocrystal stability is obtained. The film is studied by the built-in refractometer of the microtube.

• 出版日期2012-9-10