Subdiffraction Photon Guidance by Quantum-Dot Cascades | Zendy

Chia-Jean Wang | Zendy; Ludan Huang | Zendy; Babak A. Parviz | Zendy; Lih Y. Lin | Zendy

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Subdiffraction Photon Guidance by Quantum-Dot Cascades

Author(s) -

Chia-Jean Wang,

Ludan Huang,

Babak A. Parviz,

Lih Y. Lin

Publication year - 2006

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/nl061958g

Subject(s) - quantum dot , nanophotonics , cascade , fabrication , optoelectronics , photon , materials science , waveguide , photonics , nanotechnology , optics , physics , chemistry , medicine , alternative medicine , chromatography , pathology

We report on a waveguide composed of a cascade of gain-enabled quantum dots with subwavelength dimensions. Fabrication is demonstrated through DNA-mediated self-assembly and a two-layer molecular self-assembly process that enables rapid prototyping. The device, which is identified with fluorescence microscopy and tested by optical near field detection, allows optical signal transfer at a well-defined wavelength in flexible routing geometry, such as straight paths and 90 degrees bends. The structure serves as a critical building block for nanophotonic systems with high integration density.

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