Coherent control of meta-device
(Conference Presentation)

Ming Lun Tseng; Xu Fang; Cheng Hung Chu; Hui Jun Wu; Yao-Wei Huang; Wei-Yi Tsai; Mu-Ku Chen; Hsiang-Chu Wang; Ching-Fu Chen; Nikolay I. Zheludev; Din Ping Tsai

doi:10.1117/12.2238902

9 November 2016 Coherent control of meta-device (Conference Presentation)

Ming Lun Tseng, Xu Fang, Cheng Hung Chu, Hui Jun Wu, Yao-Wei Huang, Wei-Yi Tsai, Mu-Ku Chen, Hsiang-Chu Wang, Ching-Fu Chen, Nikolay I. Zheludev, Din Ping Tsai

Author Affiliations +

Proceedings Volume 9918, Metamaterials, Metadevices, and Metasystems 2016; 99180Q (2016) https://doi.org/10.1117/12.2238902
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

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.

Conference Presentation

Citation Download Citation

Ming Lun Tseng, Xu Fang, Cheng Hung Chu, Hui Jun Wu, Yao-Wei Huang, Wei-Yi Tsai, Mu-Ku Chen, Hsiang-Chu Wang, Ching-Fu Chen, Nikolay I. Zheludev, and Din Ping Tsai "Coherent control of meta-device (Conference Presentation)", Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 99180Q (9 November 2016); https://doi.org/10.1117/12.2238902

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KEYWORDS

Control systems

Modulation

Ultrafast phenomena

Applied research

Metamaterials

Dielectrics

Europium

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