期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 18, 期 23, 页码 15528-15533出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cp01295g
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资金
- UGC-UPE 2
- SERB - New Delhi [EMR/2015/000186]
- CSIR-New Delhi
Self-assembled hexagonal organic submicrotubes, upon electronic excitation with an UV laser, display an active type polarized whispering gallery mode (WGM) resonance in the visible (Vis) range (400-600 nm). Due to the photonic cavity effect the tubes show fluorescence (FL) signal intensity 5 x greater than the corresponding powder state. Furthermore, the same tubes, which are passive to a visible laser, produce yellow-orange emitting carbonaceous lumps when burnt with an intense laser beam (42 mW) forming a chemically binary heterogeneous structure. The hetero-structure upon excitation with a visible laser at the passive tubular part showed emission in the Vis-Near infrared (NIR) range (500-800 nm) with WGMs thus producing a passive/active type hetero-structure photonic resonator.
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