Interplay of dual photonic stopband in fluorescence enhancement from dye-doped photonic crystal heterostructures
| Autor: | Dipak Rout, R. Vijaya, Govind Kumar |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Fabrication business.industry Physics::Optics Heterojunction 02 engineering and technology Stopband 021001 nanoscience & nanotechnology Condensed Matter Physics Laser 01 natural sciences Electronic Optical and Magnetic Materials law.invention 010309 optics Condensed Matter::Materials Science law 0103 physical sciences Optoelectronics Spontaneous emission Photonics 0210 nano-technology business Luminescence Photonic crystal |
| Zdroj: | Journal of Nanophotonics. 13:1 |
| ISSN: | 1934-2608 |
| DOI: | 10.1117/1.jnp.13.046005 |
| Popis: | Photonic crystal (PhC) structures with appropriate characteristics are necessary to control spontaneous emission from fluorophores while designing miniaturized lasers. We report the fabrication and detailed studies on the emission features of two different spectrally engineered PhC heterostructures made from dye-doped opal and one-dimensional (1-D) multilayer stack. Our results demonstrate notable enhancements of emission from PhC heterostructure enabled by the stopband overlap of three-dimensional (3-D) opals and 1-D multilayers. In the presence of the 1-D multilayer, the distributed feedback from opals further enhances the emission from the dye. We emphasize the role of the interplay of the spectral overlap of stopbands and the band edges in the dye-doped PhC heterostructures to control their emission features. The emission results obtained from our heterostructures are very much dependent on the relative spectral position of the stopbands of the constituent 1-D and 3-D photonic crystals. Input pump energy-dependent emission results indicate that such heterostructures are potential candidates for designing colloidal PhC-based lasers. |
| Databáze: | OpenAIRE |
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