Nanjing Univ. (China). National Lab. of Solid State Microstructures. Dept. of Physics; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering; DOE/OSTI
Nanjing Univ. (China). National Lab. of Solid State Microstructures. Dept. of Physics
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
On-chip nanophotonics serves as the foundation for the new generation of information technology, but it is challenged by the diffraction limit of light. With the capabilities of confining light into (deep) subwavelength volumes, plasmonics makes it possible to dramatically miniaturize optical devices so as to integrate them into silicon chips. Here we demonstrate that by cascading nano-corrugation gratings with different periodicities on silver nanowires atop silicon, different colors can be spatially separated and chronologically released at different grating junctions. The released light frequency depends on the grating arrangement and corrugation periodicities. Hence the nanowire acts as a spectral splitter for sorting/ demultiplexing photons at different nano-scale positions with a ten-femtosecond-level interval. Such nanowires can be constructed further into compact 2D networks or circuits. We believe that this study provides a new and promising approach for realizing spatiotemporal-sensitive spectral splitting and optical signal processing on nanoscales, and for general integration of nanophotonics with microelectronics.
@article{osti_1624666,
author = {Hu, Qing and Xu, Di-Hu and Zhou, Yu and Peng, Ru-Wen and Fan, Ren-Hao and Fang, Nicholas X. and Wang, Qian-Jin and Huang, Xian-Rong and Wang, Mu},
title = {Position-sensitive spectral splitting with a plasmonic nanowire on silicon chip},
annote = {On-chip nanophotonics serves as the foundation for the new generation of information technology, but it is challenged by the diffraction limit of light. With the capabilities of confining light into (deep) subwavelength volumes, plasmonics makes it possible to dramatically miniaturize optical devices so as to integrate them into silicon chips. Here we demonstrate that by cascading nano-corrugation gratings with different periodicities on silver nanowires atop silicon, different colors can be spatially separated and chronologically released at different grating junctions. The released light frequency depends on the grating arrangement and corrugation periodicities. Hence the nanowire acts as a spectral splitter for sorting/ demultiplexing photons at different nano-scale positions with a ten-femtosecond-level interval. Such nanowires can be constructed further into compact 2D networks or circuits. We believe that this study provides a new and promising approach for realizing spatiotemporal-sensitive spectral splitting and optical signal processing on nanoscales, and for general integration of nanophotonics with microelectronics.},
doi = {10.1038/srep03095},
url = {https://www.osti.gov/biblio/1624666},
journal = {Scientific Reports},
issn = {ISSN 2045-2322},
number = {1},
volume = {3},
place = {United States},
publisher = {Nature Publishing Group},
year = {2013},
month = {10}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 355, Issue 2-3https://doi.org/10.1016/0168-9002(94)01132-x
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 355, Issue 2-3https://doi.org/10.1016/0168-9002(94)01132-X