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Proceedings Paper

Coherent control of meta-device (Conference Presentation)
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Paper Abstract

Selective excitation of specific multipolar resonances in matter can be of great utility in understanding the internal make-up of the underlying material and, as a result, in developing novel nanophotonic devices. Many efforts have been addressed on this topic. For example, the emission spectra related to the different multipolar transitions of trivalent europium can be modulated by changing the thickness of the dielectric spacer between the gold mirror and the fluorescent layer. In this talk, we reported the results about active control of the multipolar resonance in metadevices using the coherent control technique. In the coherent control spectroscopy system, the optical standing wave constructed from two counterpart propagation coherent beams is utilized as the excitation. By controlling the time delay between two ultrafast pulses to decide the location of metadivce as the electromagnetic field node or antinode node of standing wave, the absorption related to the specific multipolar resonance can be controlled. Using this technique, with the 30-nm-thick metadevice, the broadband controlling light with light without nonlinearity can be realized. The switching contrast ratios can be as high as 3:1 with a modulation bandwidth in excess of 2 THz. The active control of the high order and complex optical resonance related to the magnetic dipole, electric quadrupole, and toroidal dipole in the metamaterial is reported as well. This research can be applied in the all ultrafast all-optical data processing and the active control of the resonances of metadevice with high order multipolar resonance.

Paper Details

Date Published: 9 November 2016
PDF: 1 pages
Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 99180Q (9 November 2016); doi: 10.1117/12.2238902
Show Author Affiliations
Ming Lun Tseng, National Taiwan Univ. (Taiwan)
Xu Fang, Optoelectronics Research Ctr. (United Kingdom)
Univ. of Southampton (United Kingdom)
Cheng Hung Chu, National Taiwan Univ. (Taiwan)
Research Ctr. for Applied Sciences - Academia Sinica (Taiwan)
Hui Jun Wu, National Taiwan Univ. (Taiwan)
Yao-Wei Huang, National Taiwan Univ. (Taiwan)
Wei-Yi Tsai, National Taiwan Univ. (Taiwan)
Mu-Ku Chen, National Taiwan Univ. (Taiwan)
Hsiang-Chu Wang, National Taiwan Univ. (Taiwan)
Ching-Fu Chen, National Taiwan Univ. (Taiwan)
Nikolay I. Zheludev, Optoelectronics Research Ctr. (United Kingdom)
Univ. of Southampton (United Kingdom)
Centre for Disruptive Photonic Technologies, Nanyang Technological University (Singapore)
Din Ping Tsai, Research Ctr. for Applied Sciences - Academia Sinica (Taiwan)
National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9918:
Metamaterials, Metadevices, and Metasystems 2016
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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